IT threat evolution Q1 2020. Statistics – 10 minute mail

These statistics are based on detection verdicts for Kaspersky products received from users who consented to providing statistical data.

Quarterly figures

According to Kaspersky Security Network,

  • Kaspersky solutions blocked 726,536,269 attacks launched from online resources in 203 countries across the globe.
  • A total of 442,039,230 unique URLs were recognized as malicious by Web Anti-Virus components.
  • Attempted infections by malware designed to steal money via online access to bank accounts were logged on the computers of 249,748 unique users.
  • Ransomware attacks were defeated on the computers of 178,922 unique users.
  • Our File Anti-Virus detected 164,653,290 unique malicious and potentially unwanted objects.
  • Kaspersky products for mobile devices detected:
    • 1,152,662 malicious installation packages
    • 42,115 installation packages for mobile banking trojans
    • 4339 installation packages for mobile ransomware trojans

Mobile threats

Quarter events

Q1 2020 will be remembered primarily for the coronavirus pandemic and cybercriminals’ exploitation of the topic. In particular, the creators of a new modification of the Ginp banking trojan renamed their malware Coronavirus Finder and then began offering it for €0.75 disguised as an app supposedly capable of detecting nearby people infected with COVID-19. Thus, the cybercriminals tried not only to scam users by exploiting hot topics, but to gain access to their bank card details. And, because the trojan remains on the device after stealing this data, the cybercriminals could intercept text messages containing two-factor authorization codes and use the stolen data without the victim’s knowledge.

Another interesting find this quarter was Cookiethief, a trojan designed to steal cookies from mobile browsers and the Facebook app. In the event of a successful attack, the malware provided its handler with access to the victim’s account, including the ability to perform various actions in their name, such as liking, reposting, etc. To prevent the service from spotting any abnormal activity in the hijacked profile, the trojan contains a proxy module through which the attackers issue commands.

The third piece of malware that caught our attention this reporting quarter was trojan-Dropper.AndroidOS.Shopper.a. It is designed to help cybercriminals to leave fake reviews and drive up ratings on Google Play. The attackers’ goals here are obvious: to increase the changes of their apps getting published and recommended, and to lull the vigilance of potential victims. Note that to rate apps and write reviews, the trojan uses Accessibility Services to gain full control over the other app: in this case, the official Google Play client.

Mobile threat statistics

In Q1 2020, Kaspersky’s mobile products and technologies detected 1,152,662 malicious installation packages, or 171,669 more than in the previous quarter.

Number of malicious installation packages detected, Q1 2019 – Q1 2020 (download)

Starting in Q2 2019, we have seen a steady rise in the number of mobile threats detected. Although it is too early to sound the alarm (2019 saw the lowest number of new threats in recent years), the trend is concerning.

Distribution of detected mobile apps by type

Distribution of newly detected mobile programs by type, Q1 2020 and Q4 2019 (download)

Of all the threats detected in Q1, half were unwanted adware apps (49.9%), their share having increased by 19 p.p. compared to the previous quarter. Most often, we detected members of the HiddenAd and Ewind families, with a combined slice of 40% of all detected adware threats, as well as the FakeAdBlocker family (12%).

Potentially unwanted RiskTool apps (28.24%) took second place; the share of this type of threat remained almost unchanged. The Smsreg (49% of all detected threats of this class), Agent (17%) and Dnotua (11%) families were the biggest contributors. Note that in Q1, the number of detected members of the Smsreg family increased by more than 50 percent.

In third place were Trojan-Dropper-type threats (9.72%). Although their share decreased by 7.63 p.p. against the previous quarter, droppers remain one of the most common classes of mobile threats. Ingopack emerged as Q1’s leading family with a massive 71% of all Trojan-Dropper threats, followed by Waponor (12%) and Hqwar (8%) far behind.

It is worth noting that mobile droppers are most often used for installing financial malware, although some financial threats can spread without their help. The share of these self-sufficient threats is quite substantial: in particular, the share of Trojan-Banker in Q1 increased by 2.1 p.p. to 3.65%.

Top 20 mobile malware programs

Note that this malware rankings do not include potentially dangerous or unwanted programs such as RiskTool or adware.

Verdict %*
1 DangerousObject.Multi.Generic 44.89
2 Trojan.AndroidOS.Boogr.gsh 9.09
3 DangerousObject.AndroidOS.GenericML 7.08
4 Trojan-Downloader.AndroidOS.Necro.d 4.52
5 Trojan.AndroidOS.Hiddapp.ch 2.73
6 Trojan-Downloader.AndroidOS.Helper.a 2.45
7 Trojan.AndroidOS.Handda.san 2.31
8 Trojan-Dropper.AndroidOS.Necro.z 2.30
9 Trojan.AndroidOS.Necro.a 2.19
10 Trojan-Downloader.AndroidOS.Necro.b 1.94
11 Trojan-Dropper.AndroidOS.Hqwar.gen 1.82
12 Trojan-Dropper.AndroidOS.Helper.l 1.50
13 Exploit.AndroidOS.Lotoor.be 1.46
14 Trojan-Dropper.AndroidOS.Lezok.p 1.46
15 Trojan-Banker.AndroidOS.Rotexy.e 1.43
16 Trojan-Dropper.AndroidOS.Penguin.e 1.42
17 Trojan-SMS.AndroidOS.Prizmes.a 1.39
18 Trojan.AndroidOS.Dvmap.a 1.24
19 Trojan.AndroidOS.Agent.rt 1.21
20 Trojan.AndroidOS.Vdloader.a 1.18

* Unique users attacked by this malware as a percentage of all users of Kaspersky mobile products that were attacked.

First place in our Top 20 as ever went to DangerousObject.Multi.Generic (44.89%), the verdict we use for malware detected using cloud technology. They are triggered when the antivirus databases still lack the data for detecting a malicious program, but the Kaspersky Security Network cloud already contains information about the object. This is basically how the latest malware is detected.

Second and third places were claimed by Trojan.AndroidOS.Boogr.gsh (9.09%) and DangerousObject.AndroidOS.GenericML (7,08%) respectively. These verdicts are assigned to files that are recognized as malicious by our machine-learning systems.

In fourth (Trojan-Downloader.AndroidOS.Necro.d, 4.52%) and tenth (Trojan-Downloader.AndroidOS.Necro.b, 1.94%) places are members of the Necro family, whose main task is to download and install modules from cybercriminal servers. Eighth-placed Trojan-Dropper.AndroidOS.Necro.z (2.30%) acts in a similar way, extracting from itself only those modules that it needs. As for Trojan.AndroidOS.Necro.a, which took ninth place (2.19%), cybercriminals assigned it a different task: the trojan follows advertising links and clicks banner ads in the victim’s name.

Trojan.AndroidOS.Hiddapp.ch (2.73%) claimed fifth spot. As soon as it runs, the malware hides its icon on the list of apps and continues to operate in the background. The trojan’s payload can be other trojan programs or adware apps.

Sixth place went to Trojan-Downloader.AndroidOS.Helper.a (2.45%), which is what Trojan-Downloader.AndroidOS.Necro usually delivers. Helper.a is tasked with downloading arbitrary code from the cybercriminals’ server and running it.

The verdict Trojan.AndroidOS.Handda.san (2.31%) in seventh place is a group of diverse trojans that hide their icons, gain Device Admin rights on the device, and use packers to evade detection.

Trojan-Banker.AndroidOS.Rotexy.e (1.43%) and Trojan-Dropper.AndroidOS.Penguin.e (1.42%) warrant a special mention. The former is the only banking trojan in the top 20 this past quarter. The Rotexy family is all of six years old, and its members have the functionality to steal bank card details and intercept two-factor payment authorization messages. In turn, the first member of the Penguin dropper family was only detected last July and had gained significant popularity by Q1 2020.

Geography of mobile threats

 

Map of infection attempts by mobile malware, Q1 2020 (download)

Top 10 countries by share of users attacked by mobile threats

Country* %**
1 Iran 39.56
2 Algeria 21.44
3 Bangladesh 18.58
4 Nigeria 15.58
5 Lebanon 15.28
6 Tunisia 14.94
7 Pakistan 13.99
8 Kuwait 13.91
9 Indonesia 13.81
10 Cuba 13.62

* Excluded from the rankings are countries with relatively few users of Kaspersky mobile products (under 10,000).
** Unique users attacked as a percentage of all users of Kaspersky mobile products in the country.

In Q1 2020, the leader by share of attacked users was Iran (39.56%). Inhabitants of this country most frequently encountered adware apps from the Notifyer family, as well as Telegram clone apps. In second place was Algeria (21.44%), where adware apps were also distributed, but this time it was the HiddenAd and FakeAdBlocker families. Third place was taken by Bangladesh (18.58%), where half of the top 10 mobile threats consisted of adware in the HiddenAd family.

Mobile banking trojans

During the reporting period, we detected 42,115 installation packages of mobile banking trojans. This is the highest value in the past 18 months, and more than 2.5 times higher than in Q4 2019. The largest contributions to the statistics came from the Trojan-Banker.AndroidOS.Agent (42.79% of all installation packages detected), Trojan-Banker.AndroidOS.Wroba (16.61%), and Trojan-Banker.AndroidOS.Svpeng (13.66%) families.

Number of installation packages of mobile banking trojans detected by Kaspersky, Q1 2019 – Q1 2020 (download)

Top 10 mobile banking trojans

  Verdict %*
1 Trojan-Banker.AndroidOS.Rotexy.e 13.11
2 Trojan-Banker.AndroidOS.Svpeng.q 10.25
3 Trojan-Banker.AndroidOS.Asacub.snt 7.64
4 Trojan-Banker.AndroidOS.Asacub.ce 6.31
5 Trojan-Banker.AndroidOS.Agent.eq 5.70
6 Trojan-Banker.AndroidOS.Anubis.san 4.68
7 Trojan-Banker.AndroidOS.Agent.ep 3.65
8 Trojan-Banker.AndroidOS.Asacub.a 3.50
9 Trojan-Banker.AndroidOS.Asacub.ar 3.00
10 Trojan-Banker.AndroidOS.Agent.cf 2.70

* Unique users attacked by this malware as a percentage of all users of Kaspersky mobile products who were attacked by banking threats.

First and second places in our top 10 were claimed by trojans targeted at Russian-speaking mobile users: Trojan-Banker.AndroidOS.Rotexy.e (13.11%) and Trojan-Banker.AndroidOS.Svpeng.q (10.25%).

Third, fourth, eighth, and ninth positions in the top 10 mobile banking threats went to members of the Asacub family. The cybercriminals behind this trojan stopped creating new samples, but its distribution channels were still active in Q1.

Geography of mobile banking threats, Q1 2020 (download)

Top 10 countries by share of users attacked by mobile banking trojans

Country* %**
1 Japan 0.57
2 Spain 0.48
3 Italy 0.26
4 Bolivia 0.18
5 Russia 0.17
6 Turkey 0.13
7 Tajikistan 0.13
8 Brazil 0.11
9 Cuba 0.11
10 China 0.10

* Excluded from the rankings are countries with relatively few users of Kaspersky mobile products (under 10,000).
** Unique users attacked by mobile banking trojans as a percentage of all users of Kaspersky mobile products in the country.

In Q1 2020, Japan (0.57%) had the largest share of users attacked by mobile bankers; the vast majority of cases involved Trojan-Banker.AndroidOS.Agent.eq.

In second place came Spain (0.48%), where in more than half of all cases, we detected malware from the Trojan-Banker.AndroidOS.Cebruser family, and another quarter of detections were members of the Trojan-Banker.AndroidOS.Ginp family.

Third place belonged to Italy (0.26%), where, as in Spain, the Trojan-Banker.AndroidOS.Cebruser family was the most widespread with almost two-thirds of detections.

It is worth saying a bit more about the Cebruser family. Its creators were among the first to exploit the coronavirus topic to spread the malware.

When it runs, the trojan immediately gets down to business: it requests access to Accessibility Services to obtain Device Admin permissions, and then tries to get hold of card details.

The malware is distributed under the Malware-as-a-Service model; its set of functions is standard for such threats, but with one interesting detail — the use of a step-counter for activation so as to bypass dynamic analysis tools (sandbox). Cebruser targets the mobile apps of banks in various countries and popular non-financial apps; its main weapons are phishing windows and interception of two-factor authorization. In addition, the malware can block the screen using a ransomware tool and intercept keystrokes on the virtual keyboard.

Mobile ransomware trojans

In Q2 2020, we detected 4,339 installation packages of mobile trojan ransomware, 1,067 fewer than in the previous quarter.

Number of installation packages of mobile ransomware trojans detected by Kaspersky, Q1 2019 – Q1 2020 (download)

Top 10 mobile ransomware trojans

Verdict %*
1 Trojan-Ransom.AndroidOS.Svpeng.aj 17.08
2 Trojan-Ransom.AndroidOS.Congur.e 12.70
3 Trojan-Ransom.AndroidOS.Small.as 11.41
4 Trojan-Ransom.AndroidOS.Rkor.k 9.88
5 Trojan-Ransom.AndroidOS.Small.as 7.32
6 Trojan-Ransom.AndroidOS.Small.o 4.79
7 Trojan-Ransom.AndroidOS.Svpeng.aj 3.62
8 Trojan-Ransom.AndroidOS.Svpeng.ah 3.55
9 Trojan-Ransom.AndroidOS.Congur.e 3.32
10 Trojan-Ransom.AndroidOS.Fusob.h 3.17

* Unique users attacked by this malware as a percentage of all users of Kaspersky mobile products who were attacked by ransomware trojans.

Over the past few quarters, the number of ransomware trojans detected has been gradually decreasing; all the same, we continue to detect quite a few infection attempts by this class of threats. The main contributors to the statistics were the Svpeng, Congur, and Small ransomware families.

Geography of mobile ransomware trojans, Q1 2020 (download)

Top 10 countries by share of users attacked by mobile ransomware trojans:

Country* %**
1 USA 0.26
2 Kazakhstan 0.25
3 Iran 0.16
4 China 0.09
5 Saudi Arabia 0.08
6 Italy 0.03
7 Mexico 0.03
8 Canada 0.03
9 Indonesia 0.03
10 Switzerland 0.03

* Excluded from the rankings are countries with relatively few users of Kaspersky mobile products (under 10,000).
** Unique users attacked by mobile ransomware trojans as a percentage of all users of Kaspersky mobile products in the country.

The leaders by number of users attacked by mobile ransomware trojans are Syria (0.28%), the United States (0.26%) and Kazakhstan (0.25%)

Attacks on Apple macOS

In Q1 2020, we detected not only new versions of common threats, but one new backdoor family, whose first member was Backdoor.OSX.Capip.a. The malware’s operating principle is simple: it calls the C&C for a shell script, which it then downloads and executes.

Top 20 threats to macOS

Verdict %*
1 Trojan-Downloader.OSX.Shlayer.a 19.27
2 AdWare.OSX.Pirrit.j 10.34
3 AdWare.OSX.Cimpli.k 6.69
4 AdWare.OSX.Ketin.h 6.27
5 AdWare.OSX.Pirrit.aa 5.75
6 AdWare.OSX.Pirrit.o 5.74
7 AdWare.OSX.Pirrit.x 5.18
8 AdWare.OSX.Spc.a 4.56
9 AdWare.OSX.Cimpli.f 4.25
10 AdWare.OSX.Bnodlero.t 4.08
11 AdWare.OSX.Bnodlero.x 3.74
12 Hoax.OSX.SuperClean.gen 3.71
13 AdWare.OSX.Cimpli.h 3.37
14 AdWare.OSX.Pirrit.v 3.30
15 AdWare.OSX.Amc.c 2.98
16 AdWare.OSX.MacSearch.d 2.85
17 RiskTool.OSX.Spigot.a 2.84
18 AdWare.OSX.Pirrit.s 2.80
19 AdWare.OSX.Ketin.d 2.76
20 AdWare.OSX.Bnodlero.aq 2.70

* Unique users attacked by this malware as a percentage of all users of Kaspersky security solutions for macOS who were attacked

The top 20 threats for macOS did not undergo any major changes in Q1 2020. The adware trojan Shlayer.a (19.27%) still tops the leaderboard, followed by objects that Shlayer itself loads into the infected system, in particular, numerous adware apps from the Pirrit family.

Interestingly, the unwanted program Hoax.OSX.SuperClean.gen landed in 12th place on the list. Like other Hoax-type programs, it is distributed under the guise of a system cleanup app, and immediately after installation, scares the user with problems purportedly found in the system, such as gigabytes of trash on the hard drive.

Threat geography

Country* %**
1 Spain 7.14
2 France 6.94
3 Italy 5.94
4 Canada 5.58
5 USA 5.49
6 Russia 5.10
7 India 4.88
8 Mexico 4.78
9 Brazil 4.65
10 Belgium 4.65

* Excluded from the rankings are countries with relatively few users of Kaspersky security solutions for macOS (under 5,000)
** Unique users who encountered macOS threats as a percentage of all users of Kaspersky security solutions for macOS in the country.

The leading countries, as in previous quarters, were Spain (7.14%), France (6.94%) and Italy (5.94%). The main contributors to the number of detections in these countries were the familiar Shlayer trojan and adware apps from the Pirrit family.

IoT attacks

IoT threat statistics

In Q1 2020, the share of IP addresses from which attempts were made to attack Kaspersky telnet traps increased significantly. Their share amounted to 81.1% of all IP addresses from which attacks were carried out, while SSH traps accounted for slightly less than 19%.

Distribution of attacked services by number of unique IP addresses of devices that carried out attacks, Q1 2020

It was a similar situation with control sessions: attackers often controlled infected traps via telnet.

Distribution of cybercriminal working sessions with Kaspersky traps, Q1 2020

Telnet-based attacks

 

Geography of device IP addresses where attacks at Kaspersky telnet traps originated, Q1 2020 (download)

Top 10 countries by location of devices from which attacks were carried out on Kaspersky telnet traps.

Country* %
China 13.04
Egypt 11.65
Brazil 11.33
Vietnam 7.38
Taiwan 6.18
Russia 4.38
Iran 3.96
India 3.14
Turkey 3.00
USA 2.57

 
For several quarters in a row, the leading country by number of attacking bots has been China: in Q1 2020 its share stood at 13.04%. As before, it is followed by Egypt (11.65%) and Brazil (11.33%).

SSH-based attacks

 

Geography of device IP addresses where attacks at Kaspersky SSH traps originated, Q1 2020 (download)

Top 10 countries by location of devices from which attacks were made on Kaspersky SSH traps.

Country* %
China 14.87
Vietnam 11.58
USA 7.03
Egypt 6.82
Brazil 5.79
Russia 4.66
India 4.16
Germany 3.64
Thailand 3.44
France 2.83

In Q1 2020, China (14.87%), Vietnam (11.58%) and the US (7.03%) made up the top three countries by number of unique IPs from which attacks on SSH traps originated.

Threats loaded into honeypots

Verdict %*
Trojan-Downloader.Linux.NyaDrop.b 64.35
Backdoor.Linux.Mirai.b 16.75
Backdoor.Linux.Mirai.ba 6.47
Backdoor.Linux.Gafgyt.a 4.36
Backdoor.Linux.Gafgyt.bj 1.30
Trojan-Downloader.Shell.Agent.p 0.68
Backdoor.Linux.Mirai.c 0.64
Backdoor.Linux.Hajime.b 0.46
Backdoor.Linux.Mirai.h 0.40
Backdoor.Linux.Gafgyt.av 0.35

* Share of malware type in the total amount of malware downloaded to IoT devices following a successful attack.

In Q1 2020, attackers most often downloaded the minimalistic trojan loader NyaDrop (64.35%), whose executable file does not exceed 500 KB. Threats from the Mirai family traditionally dominated: its members claimed four places in our top 10. These malicious programs will continue to rule the world of IoT threats for a long time to come, at least until the appearance of a more advanced (and publicly available) DDoS bot.

Financial threats

Financial threat statistics

In Q1 2020, Kaspersky solutions blocked attempts to launch one or several types of malware designed to steal money from bank accounts on the computers of 249,748 users.

Number of unique users attacked by financial malware, Q1 2020 (download)

Attack geography

To assess and compare the risk of being infected by banking trojans and ATM/POS malware in various countries, for each country we calculated the share of users of Kaspersky products that faced this threat during the reporting period out of all users of our products in that country.

Geography of banking malware attacks, Q1 2020 (download)

Top 10 countries by share of attacked users

Country* %**
1 Uzbekistan 10.5
2 Tajikistan 6.9
3 Turkmenistan 5.5
4 Afghanistan 5.1
5 Yemen 3.1
6 Kazakhstan 3.0
7 Guatemala 2.8
8 Syria 2.4
9 Sudan 2.1
10 Kyrgyzstan 2.1

* Excluded are countries with relatively few Kaspersky product users (under 10,000).
** Unique users whose computers were targeted by financial malware as a percentage of all unique users of Kaspersky products in the country.

Top 10 banking malware families

Name Verdicts %*
1 Emotet Backdoor.Win32.Emotet 21.3
2 Zbot Trojan.Win32.Zbot 20.8
3 CliptoShuffler Trojan-Banker.Win32.CliptoShuffler 17.2
4 RTM Trojan-Banker.Win32.RTM 12.3
5 Nimnul Virus.Win32.Nimnul 3.6
6 Trickster Trojan.Win32.Trickster 3.6
7 Neurevt Trojan.Win32.Neurevt 3.3
8 SpyEye Trojan-Spy.Win32.SpyEye 2.3
9 Danabot Trojan-Banker.Win32.Danabot 2.0
10 Nymaim Trojan.Win32.Nymaim 1.9

** Unique users attacked by this malware family as a percentage of all users attacked by financial malware.

Ransomware programs

Quarterly highlights

Ransomware attacks on organizations, as well as on city and municipal networks, did not ease off. Given how lucrative they are for cybercriminals, there is no reason why this trend of several years should cease.

More and more ransomware is starting to supplement encryption with data theft. To date, this tactic has been adopted by distributors of ransomware families, including Maze, REvil/Sodinokibi, DoppelPaymer and JSWorm/Nemty/Nefilim. If the victim refuses to pay the ransom for decryption (because, say, the data was recovered from a backup copy), the attackers threaten to put the stolen confidential information in the public domain. Such threats are sometimes empty, but not always: the authors of several ransomware programs have set up websites that do indeed publish the data of victim organizations.

Number of new modifications

In Q1 2020, we detected five new ransomware families and 5,225 new modifications of these malware programs.

Number of new ransomware modifications detected, Q1 2019 – Q1 2020 (download)

Number of users attacked by ransomware trojans

In Q1 2020, Kaspersky products and technologies protected 178,922 users from ransomware attacks.

Number of unique users attacked by ransomware trojans, Q1 2020 (download)

Attack geography

 

Geography of attacks by ransomware trojans, Q1 2020 (download)

Top 10 countries attacked by ransomware trojans

Country* %**
1 Bangladesh 6.64
2 Uzbekistan 1.98
3 Mozambique 1.77
4 Ethiopia 1.67
5 Nepal 1.34
6 Afghanistan 1.31
7 Egypt 1.21
8 Ghana 0.83
9 Azerbaijan 0.81
10 Serbia 0.74

* Excluded are countries with relatively few Kaspersky users (under 50,000).
** Unique users whose computers were attacked by ransomware trojans as a percentage of all unique users of Kaspersky products in the country.

Top 10 most common families of ransomware trojans

Name Verdicts %*
1 WannaCry Trojan-Ransom.Win32.Wanna 19.03
2 (generic verdict) Trojan-Ransom.Win32.Gen 16.71
3 (generic verdict) Trojan-Ransom.Win32.Phny 16.22
4 GandCrab Trojan-Ransom.Win32.GandCrypt 7.73
5 Stop Trojan-Ransom.Win32.Stop 6.62
6 (generic verdict) Trojan-Ransom.Win32.Encoder 4.28
7 (generic verdict) Trojan-Ransom.Win32.Crypren 4.15
8 PolyRansom/VirLock Virus.Win32.PolyRansom,

Trojan-Ransom.Win32.PolyRansom

2.96
9 Crysis/Dharma Trojan-Ransom.Win32.Crusis 2.02
10 (generic verdict) Trojan-Ransom.Win32.Generic 1.56

* Unique Kaspersky users attacked by the specified family of ransomware trojans as a percentage of all users attacked by ransomware trojans.

Miners

Number of new modifications

In Q1 2020, Kaspersky solutions detected 192,036 new miner modifications.

Number of new miner modifications, Q1 2020 (download)

Number of users attacked by miners

In Q1, we detected attacks using miners on the computers of 518,857 unique users of Kaspersky Lab products worldwide.

Number of unique users attacked by miners, Q1 2020 (download)

Attack geography

 

Geography of miner attacks, Q1 2020 (download)

Top 10 countries attacked by miners

Country* %**
1 Afghanistan 6.72
2 Ethiopia 4.90
3 Tanzania 3.26
4 Sri Lanka 3.22
5 Uzbekistan 3.10
6 Rwanda 2.56
7 Vietnam 2.54
8 Kazakhstan 2.45
9 Mozambique 1.96
10 Pakistan 1.67

* Excluded are countries with relatively few users of Kaspersky products (under 50,000).
** Unique users whose computers were attacked by miners as a percentage of all unique users of Kaspersky products in the country.

Vulnerable applications used by cybercriminals during cyberattacks

We already noted that Microsoft Office vulnerabilities are the most common ones. Q1 2020 was no exception: the share of exploits for these vulnerabilities grew to 74.83%. The most popular vulnerability in Microsoft Office was CVE-2017-11882, which is related to a stack overflow error in the Equation Editor component. Hard on its heels was CVE-2017-8570, which is used to embed a malicious script in an OLE object inside an Office document. Several other vulnerabilities, such as CVE-2018-0802 and CVE-2017-8759, were also popular with attackers. In the absence of security updates for Microsoft Office, these vulnerabilities are successfully exploited and the user’s system becomes infected.

In second place were exploits for vulnerabilities in Internet browsers (11.06%). In Q1, cybercriminals attacked a whole host of browsers, including Microsoft Internet Explorer, Google Chrome, and Mozilla Firefox. What’s more, some of the vulnerabilities were used in APT attacks, such as CVE-2020-0674, which is associated with the incorrect handling of objects in memory in an outdated version of the JScript scripting engine in Internet Explorer, leading to code execution. Another example is the previously identified CVE-2019-17026, a data type mismatch vulnerability in Mozilla Firefox’s JIT compiler, which also leads to remote code execution. In the event of a successful attack, both browser exploits cause a malware infection. The researchers also detected a targeted attack against Google Chrome exploiting the RCE vulnerability CVE-2020-6418 in the JavaScript engine; in addition, the dangerous RCE vulnerability CVE-2020-0767 was detected in a component of the ChakraCore scripting engine used by Microsoft Edge. Although modern browsers have their own protection mechanisms, cybercriminals are forever finding ways around them, very often using chains of exploits to do so. Therefore, it is vital to keep the operating system and software up to date at all times.

Distribution of exploits used in attacks by type of application attacked, Q1 2020 (download)

This quarter, a wide range of critical vulnerabilities were detected in operating systems and their components.

  • CVE-2020-0601 is a vulnerability that exploits an error in the core cryptographic library of Windows, in a certificate validation algorithm that uses elliptic curves. This vulnerability enables the use of fake certificates that the system recognizes as legitimate.
  • CVE-2020-0729 is a vulnerability in processing LNK files in Windows, which allows remote code execution if the user opens a malicious shortcut.
  • CVE-2020-0688 is the result of a default configuration error in Microsoft Exchange Server, whereby the same cryptographic keys are used to sign and encrypt serialized ASP.NET ViewState data, enabling attackers to execute their own code on the server side with system rights.

Various network attacks on system services and network protocols were as popular as ever with attackers. We continue to detect attempts at exploiting vulnerabilities in the SMB protocol using EternalBlue, EternalRomance and similar sets of exploits. In Q1 2020, the new vulnerability CVE-2020-0796 (SMBGhost) was detected in the SMBv3 network protocol, leading to remote code execution, in which regard the attacker does not even need to know the username/password combination (since the error occurs before the authentication stage); however, it is present only in Windows 10. In Remote Desktop Gateway there were found two critical vulnerabilities (CVE-2020-0609 and CVE-2020-0610) enabling an unauthorized user to execute remote code in the target system. In addition, there were more frequent attempts to brute-force passwords to Remote Desktop Services and Microsoft SQL Server via the SMB protocol as well.

Attacks via web resources

The statistics in this section are based on Web Anti-Virus, which protects users when malicious objects are downloaded from malicious/infected web pages. Malicious websites are specially created by cybercriminals; web resources with user-created content (for example, forums), as well as hacked legitimate resources, can be infected.

Countries that are sources of web-based attacks: Top 10

The following statistics show the distribution by country of the sources of Internet attacks blocked by Kaspersky products on user computers (web pages with redirects to exploits, sites containing exploits and other malicious programs, botnet C&C centers, etc.). Any unique host could be the source of one or more web-based attacks.

To determine the geographical source of web-based attacks, domain names are matched against their actual domain IP addresses, and then the geographical location of a specific IP address (GEOIP) is established.

In Q1 2020, Kaspersky solutions defeated 726,536,269 attacks launched from online resources located in 203 countries worldwide. As many as 442,039,230 unique URLs were recognized as malicious by Web Anti-Virus components.

Distribution of web-based attack sources by country, Q1 2020 (download)

Countries where users faced the greatest risk of online infection

To assess the risk of online infection faced by users in different countries, for each country, we calculated the percentage of Kaspersky users on whose computers Web Anti-Virus was triggered during the quarter. The resulting data provides an indication of the aggressiveness of the environment in which computers operate in different countries.

This rating only includes attacks by malicious programs that fall under the Malware class; it does not include Web Anti-Virus detections of potentially dangerous or unwanted programs such as RiskTool or adware.

Country* % of attacked users**
1 Bulgaria 13.89
2 Tunisia 13.63
3 Algeria 13.15
4 Libya 12.05
5 Bangladesh 9.79
6 Greece 9.66
7 Latvia 9.64
8 Somalia 9.20
9 Philippines 9.11
10 Morocco 9.10
11 Albania 9.09
12 Taiwan, Province of China 9.04
13 Mongolia 9.02
14 Nepal 8.69
15 Indonesia 8.62
16 Egypt 8.61
17 Georgia 8.47
18 France 8.44
19 Palestine 8.34
20 Qatar 8.30

* Excluded are countries with relatively few Kaspersky users (under 10,000).
** Unique users targeted by Malware-class attacks as a percentage of all unique users of Kaspersky products in the country.

These statistics are based on detection verdicts returned by the Web Anti-Virus module that were received from users of Kaspersky products who consented to providing statistical data.

On average, 6.56% of Internet user’ computers worldwide experienced at least one Malware-class attack.

Geography of malicious web-based attacks, Q1 2020 (download)

Local threats

In this section, we analyze statistical data obtained from the OAS and ODS modules in Kaspersky products. It takes into account malicious programs that were found directly on users’ computers or removable media connected to computers (flash drives, camera memory cards, phones, external hard drives), or which initially made their way onto the computer in non-open form (for example, programs in complex installers, encrypted files, etc.).

In Q1 2020, our File Anti-Virus registered 164,653,290 malicious and potentially unwanted objects. 

Countries where users faced the highest risk of local infection

For each country, we calculated the percentage of Kaspersky product users on whose computers File Anti-Virus was triggered during the reporting period. These statistics reflect the level of personal-computer infection in different countries.

Note that this rating only includes attacks by malicious programs that fall under the Malware class; it does not include File Anti-Virus triggers in response to potentially dangerous or unwanted programs, such as RiskTool or adware.

Country* % of attacked users**
1 Afghanistan 52.20
2 Tajikistan 47.14
3 Uzbekistan 45.16
4 Ethiopia 45.06
5 Myanmar 43.14
6 Bangladesh 42.14
7 Kyrgyzstan 41.52
8 Yemen 40.88
9 China 40.67
10 Benin 40.21
11 Mongolia 39.58
12 Algeria 39.55
13 Laos 39.21
14 Burkina Faso 39.09
15 Malawi 38.42
16 Sudan 38.34
17 Rwanda 37.84
18 Iraq 37.82
19 Vietnam 37.42
20 Mauritania 37.26

* Excluded are countries with relatively few Kaspersky users (under 10,000).
** Unique users on whose computers Malware-class local threats were blocked as a percentage of all unique users of Kaspersky products in the country.

Geography of local infection attempts, Q1 2020 (download)

Overall, 19.16% of user computers globally faced at least one Malware-class local threat during Q1.


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Hackers who were preparing attacks on hospitals arrested in Romania – Disposable mail news

Romanian law enforcement officials stopped the activities of the cybercriminal group PentaGuard, which was preparing to carry out attacks on Romanian hospitals using ransomware.

Four hackers were arrested, and searches were conducted at their place of residence (at three addresses in Romania and one address in Moldova). According to the Romanian Directorate for Investigating Organized Crime and Terrorism (DIICOT), hackers had various malicious programs at their disposal, including Trojans for remote access, ransomware, as well as tools for defacing sites and SQL injections.

In addition, hackers developed malicious computer applications for use in computer attacks, such as rasomware-cryptolocker and RAT (Remote Trojan Access). Such malicious attacks were directed against several state institutions, as in Bucharest.

During the investigation, it became clear that cybercriminals planned to attack hospitals. The attackers intended to send phishing emails on the subject of COVID-19 to medical institutions, and use them to infect networks with ransomware Locky or BadRabbit, encrypt files and demand a ransom for recovery. According to the Romanian media, this is how the cybercriminals wanted to protest against the quarantine measures taken by the Romanian government.

This type of attack makes it possible to block and seriously disrupt the functioning of the IT infrastructure of these hospitals. They are part of the healthcare system, which currently plays a decisive and decisive role in combating the pandemic with the new coronavirus.

The hacker group PentaGuard has existed since about 2000. In January 2001, the group carried out a massive deface of the sites of the British and Australian governments. Over the past few years, PentaGuard has not conducted any deface campaigns but has remained active on hacker forums. In January 2020, the group resumed defacing attacks.


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ProLock Ransomware Operators Join Hands with QakBot Trojan to Infect Victims’ Networks – Disposable mail news

‘Human-operated ransomware’ has been on a rise with the emergence of ProLock in the month of March, the new ransomware came as a successor to ‘PwndLocker’, another variant of malware targeting all the major industries from finance, retail to healthcare and governmental organizations as well. Notably, in late April, the attack targeting the largest ATM provider in the United States, Diebold Nixdorf was the first major attack carried by ProLock where the attackers only compromised the company’s corporate network while their ATMs and customer networks were left untouched, according to the media reports.

In order to acquire access to targets’ networks, ProLock has joined hands with financial malware primarily targeting businesses, QakBot. Since its initial online fraud attacks, the banking trojan has constantly evolved to specialize in SOCKS proxy, anti-research capabilities and to effectively steal victims’ online banking credentials. The malware has been upgraded so much so that one of its present variants can even incapacitate securing software functioning at the endpoints. Interestingly, the assistance of QakBot that distinguishes the malware from other ransomware operators further strengthens the operations of ProLock as it helps the malware with credential dumping and anti-detection techniques.

ProLock makes use of RDP and QakBot to set the attack into motion, it assists the threat actors in evading detection and with persistence. Researchers told QBot specializes in bypassing detection as it is programmed to check out for its latest version and replace its current version with the newest one. Meanwhile, in order to acquire persistence in the network, the attackers use authentic accounts for RDP. RDP allows the malware to move laterally across networks and accumulate data, which later is exfiltrated through a command-line tool. Side by side, the files are being encrypted by ProLock that adds a .proLock, .pr0Lock or .proL0ck extension to all the encrypted files and leaves a ransom note demanding a ransom in turn for their data. However, as of now, ProLock doesn’t have a website to publish victims’ stolen data in case they are denied ransom.

“ProLock uses many similar techniques as other ransomware operators to achieve their goals,” said Oleg Skulkin, senior digital forensics analyst at Group-IB in a recent analysis. “At the same time, however, the group does have its own unique approach. With more and more cybercrime groups showing interest in enterprise ransomware deployment campaigns, some operators may be involved in deploying different ransomware families, so we’ll likely see more overlaps in tactics, techniques, and procedures.”


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Verizon’s 2020 DBIR | Securelist – 10 minute mail

Verizon’s 2020 DBIR is out, you can download a copy or peruse their publication online. Kaspersky was a contributor once again, and we are happy to provide generalized incident data from our unique and objective research.

We have contributed to this project and others like it for years now. This year’s ~120 page report analyses data from us and 80 other contributors from all over the world. The team provides thoughts on a mountain of breach data – “This year, we analyzed a record total of 157,525 incidents. Of those, 32,002 met our quality standards and 3,950 were confirmed data breaches”. And this year, Verizon pulled in far more data on cybercrime breaches this year, and report on thousands of them. We include a few interesting notes here.

  • 70% of reported breaches were perpetrated by external actors.
  • Majority of breaches do not just involve a dropped Trojan.
  • 86% of breaches were financially motivated.
  • 81% of breaches were contained in days or less.
  • Defenders are up against organized crime.
  • Almost a third of reported breaches involved ransomware.


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Cyberthreats on lockdown | Securelist – 10 minute mail

Every year, our anti-malware research team releases a series of reports on various cyberthreats: financial malware, web attacks, exploits, etc. As we monitor the increase, or decrease, in the number of certain threats, we do not usually associate these changes with concurrent world events – unless these events have a direct relation to the cyberthreats, that is: for example, the closure of a large botnet and arrest of its owners result in a decrease in web attacks.

However, the COVID-19 pandemic has affected us all in some way, so it would be surprising if cybercriminals were an exception. Spammers and phishers were naturally the trailblazers in this – look for details in the next quarterly report – but the entire cybercrime landscape has changed in the last few months. Before we discuss the subject, let us get something out of the way: it would be farfetched to attribute all of the changes mentioned below to the pandemic. However, certain connections can be traced.

Remote work

The first thing that caught our attention was remote work. From an information security standpoint, an employee within the office network and an employee connecting to the same network from home are two completely different users. It seems cybercriminals share this view, as the number of attacks on servers and remote access tools has increased as their usage has grown. In particular, the average daily number of bruteforce attacks on database servers in April 2020 was up by 23% from January.

Distribution of botnet C&C servers by country, Q1 2020 (download)

Unique computers subjected to bruteforce attacks, January through April 2020

Cybercriminals use brute force to penetrate a company’s network and subsequently launch malware inside its infrastructure. We are monitoring several cybercrime groups that rely on the scheme. The payload is usually ransomware, mostly from the Trojan-Ransom.Win32.Crusis, Trojan-Ransom.Win32.Phobos and Trojan-Ransom.Win32.Cryakl families.

RDP-attacks and ways to counter these were recently covered in detail by Dmitry Galov in his blog post, “Remote spring: the rise of RDP bruteforce attacks“.

Remote entertainment

Online entertainment activity increased as users transitioned to a “remote” lifestyle. The increase was so pronounced that some video streaming services, such as YouTube, announced that they were changing their default video quality to help with reducing traffic. The cybercriminal world responded by stepping up web threats: the average daily number of attacks blocked by Kaspersky Web Anti-Virus increased by 25% from January 2020.

Web-based attacks blocked, January through April 2020 (download)

It is hard to single out one specific web threat as the driver – all of the threats grew more or less proportionally. Most web attacks that were blocked originated with resources that redirected users to all kinds of malicious websites. Some of these were phishing resources and websites that subscribed visitors to unsolicited push notifications or tried to scare them with fake system error warnings.
We also noticed an increase in Trojan-PSW browser script modifications that could be found on various infected sites. Their main task was to capture bank card credentials entered by users while shopping online and transfer these to cybercriminals.
Websites capable of silently installing cookie files on users’ computers (cookie stuffing) and resources that injected advertising scripts into users’ traffic together accounted for a significant share of the web threats.


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WannaCryptor remains a global threat three years on – 10 minute mail

WannaCryptor is still alive and kicking, so much so that it sits atop the list of the most commonly detected ransomware families

On May 12th, 2017, WannaCryptor (also known as WannaCry and WCrypt) wrought havoc on computer systems across the globe to a degree never seen previously. The cryptoworm propagated through an exploit called EternalBlue that targeted a critical vulnerability in an outdated version of Microsoft’s implementation of the Server Message Block (SMB) protocol, via port 445, which is mainly used for file- and printer-sharing in enterprise networks. During such an attack, a cybercriminal scans the internet for machines with an exposed SMB port, and launches the exploit code against any vulnerable machines that are found. If the exploit succeeds, the blackhat will run a payload of their choice; in this case, it was the WannaCryptor.D ransomware.

Fast forward to 2020

Three years later, WannaCryptor is still a strong player on the ransomware field. According to the ESET Threat Report for the first quarter of 2020, WannaCryptor still dominates the ransomware family rankings, accounting for 40.5% of ransomware detections. Its dominance at the top of the table didn’t stop in April either, although it did drop by less than one percentage point compared to the previous month. This is quite disconcerting, considering that it had been almost three years since the largest recorded outbreak in May 2017. For most of the first quarter of 2020, WannaCryptor detections were attributed to widely recognized samples that spread in regions with potentially high numbers of unpatched machines, such as Turkey, Thailand, and Indonesia.

Figure 1. Top 10 ransomware families (% of ransomware detections), January to April 2020

Let’s now focus on the exploit that facilitated the whole WannaCryptor crisis: EternalBlue. Attempted attacks using the infamous exploit were on the decline throughout Q1. In fact, by the end of the first quarter of 2020 it was at half of the historical high it reached in the second quarter of 2019. Although the statistics may seem encouraging: three years on, EternalBlue remains a relevant threat with hundreds of thousands of attack attempts taking place daily.

According to Shodan, meanwhile, there are still about one million Windows machines with the SMBv1 protocol exposed to the internet (Figure 2). That means that there are potentially one million machines that are susceptible to attacks using the EternalBlue exploit.

Figure 2. Data from Shodan (as of May 4th, 2020)

Compared with last year, there was a reshuffle of where most of the affected devices are located. While the United States still leads the pack with the greatest number of vulnerable devices, Russia has overtaken Japan for second place. South Africa is a noteworthy addition since last year it wasn’t even on the list and now it has taken fourth place.

It’s worth noting that although EternalBlue gained infamy for enabling WannaCryptor, that is not by any means the only high-profile attack that leveraged it. Both the Diskcoder.C (aka Petya, NotPetya and ExPetya) and BadRabbit ransomware campaigns are attributed to the exploit, dumped online by the Shadow Brokers group after allegedly being purloined from the US National Security Agency (NSA).

Lessons learned?

Looking back, it’s safe to say that the outbreak was avoidable and could have been stopped dead in its tracks if users worldwide had taken the necessary steps. The vulnerability was disclosed to Microsoft and a critical security update was released as part of a typical “Patch Tuesday” update a full 59 days before the global outbreak began.

Furthermore, the Redmond giant deemed the first version of SMBv1 protocol – which is now over thirty years old and contained the EternalBlue vulnerability – deprecated in 2013, indicating then that it should have been considered obsolete and not used anymore. And even if a patch wasn’t installed, then some basic security configurations could have prevented WannaCryptor from infecting devices altogether. So has the cyberworld learned anything from one of the worst ransomware outbreaks in history?

Although you would think that the EternalBlue-enabled WannaCryptor crisis instilled a valuable lesson in netizens, unfortunately, that doesn’t seem to be the case. To quote the Spanish philosopher George Santayana: “Those who cannot remember the past are condemned to repeat it.”

Those words especially ring true, since starting in the middle of last year, cybersecurity experts started sounding the alarm about BlueKeep, a Remote Code Execution (RCE) vulnerability found in Remote Desktop Services (RDP) that every enterprise administrator should have patched ASAP. Yet, the first attacks were recorded months later. [ESET released a free utility last year to check if a Windows computer is vulnerable to attacks exploiting BlueKeep.]

Final thoughts

The major takeaway remains that three years on, many people still underestimate the value of patching their computer systems as soon as a patch is available, and apparently they do not adhere to best security practices. Keep your software patched and up to date, and combine that practice with a reputable multi-layered endpoint security product. This will go a long way toward protecting you against ransomware … and all kinds of other malicious attacks.



Amer Owaida


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SeaChange, Video Delivery Software Solutions Provider Hit By Sodinokibi Ransomware – Disposable mail news

SeaChange, a leading supplier of video delivery software solutions has been attacked by the authors of Sodinokibi ransomware. Reportedly, the operators have published images of the data they claim to have obtained after encrypting the systems and are threatening the Waltham, Massachusets based company to leak the stolen data.

SeaChange International has offices in Poland and Brazil, it is a remotely managed video solution provider with around 50 million subscribers across the globe. BBC, DISH, COX, DNA, Quickline, RCN, and Starhub are a few names amongst their 200+ video provider customers.

The cybercriminals behind Sodinokibi ransomware have been actively involved in posting illegally obtained data of victims onto their leak website since 2019 and then demanding a ransom for the release of the same. Lately, attackers have increasingly employed this strategy of building pressure on non-paying victims and converting them into a paying one by releasing the stolen data bit by bit, starting from smaller parts.

In this particular case, the attackers created a webpage by the company’s name and published the images of the allegedly stolen data on that page, it contained a screenshot of folders on one of the SeaChange’s servers targeted by the attackers, a driver’s license, insurance certificates and a cover letter for a proposal sent to Pentagon for video-on-demand service. However, the operators did not specify the ransom amount at that time.

While denying to provide further data, Sodinokibi operators said, “Thank you for your interest and your questions, but I really can’t answer. We publish confidential information about companies if they ignore us for a long time or decide not to pay. Otherwise, we are not ready to share any information about them in their own interests, including share which companies we have encrypted, how much data we have stolen, etc.”


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Double Extortion- A Ransomware Tactic That Leaves The Victims With No Choice! – Disposable mail news

In addition to all the reasons ransomware were already dangerous and compulsive, there’s another one that the recent operators are employing to scare the wits out of their targets.

Cyber-criminals now tend to be threatening their victims with publishing and compromising their stolen data if the ransom doesn’t get paid or any other conditions aren’t followed through with.

The tactic in question is referred to as “Double Extortion” and quite aptly so. Per sources, its usage emerged in the latter half of 2019 apparently in use, by the Sodinokibi, DopplePaymer and Clop ransomware families.

Double extortion is all about doubling the malicious impact a normal ransomware attack could create. So the cyber-criminals try and stack up all sorts of pressure on the victims in the form of leaked information on the dark web, etc.

They just want to make sure that the victims are left with no other option but to pay the ransom and meet all the conditions of the attack, no matter how outrageous they are.

The pattern of Double Extortion was tracked after a well-known security staffing company from America experienced the “Maze ransomware” attack and didn’t pay up the 300 Bitcoin which totaled up to $2.3 Million. Even after they were threatened that their stolen email data and domain name certificates would be used for impersonating the company!

Per sources, all of the threatening wasn’t without proof. The attackers released 700 MB of data which allegedly was only 10% of what they had wrested from the company! And what’s more, they HIKED the ransom demand by 50%!

According to sources, the Maze ransomware group has a website especially fabricated to release data of the disobliging organizations and parties that don’t accept their highly interesting “deals” in exchange for the data.

Reportedly, ranging from extra sensitive to averagely confidential data of dozens of companies and firms from all the industries has found its way to the Maze ransomware website.

Clearly impressed by it many other operators of similar intentions opened up their own versions of the above-mentioned website to carry forward their “business” of threatening companies for digital currency and whatnot! They sure seem to have a good sense of humor because per sources the blog names are the likes of “Happy Blog”.

Per reports, the Sodinokibi ransomware bullied to leak a complete database from the global currency exchange, Travelex. The company had to pay $2.3 Million worth Bitcoin to get the attackers to bring their company back online.

Per reports of the researchers, the attackers would always release some kind of proof that they have the extremely valuable data of the company, before publishing it, to give the company a fair chance at paying up the ransom demanded.

Usually, these attacks are a win-win for the attackers and a “lose-lose” for the victims because if they decide not to pay up they would be putting their company in a very dangerous situation with all the valuable data compromised online for anyone to exploit, they would have to report the breach and they would have to pay a considerably high fine to the data privacy regulator. And if they pay up, they would be losing a giant plop of money! And sadly the latter feels like a better option.

Hospitals happen to be the organizations that are the most vulnerable to these attacks because of all the sensitive health-related data their databases are jam-packed with on any other day and additionally due to the Coronavirus outbreak.

The organizations could always follow the most widely adapted multi-layered security measures for keeping their data safe obviously including updating systems, keeping backups and keeping data protected in any way they possibly can.

The most conscientious gangs of the many ransomware families, per sources, have promised to not attack hospitals amidst this pandemic. But that doesn’t stop the other mal-actors from employing cyber-attacks.

The cyber-crime forecasters have mentioned that the year 2020 would be quite a difficult year for these organizations what with the lock-down and no easier (malicious) way to earn money, apparently? Food for thought!


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L4NC34 Ransomware Teaches That Ransomware Attacks Ought To Never Be Trifled With – Disposable mail news

There is no denying the fact that whenever the word ransomware is mentioned computers are an instinctive afterthought to have been largely infected by the same. The impact is without a doubt an extremely serious one and so it always escapes our notice that it’s the websites also that are touched upon by this impact.

While Ransomware is normally thought to be a method wherein files are encrypted in a super-perplexing way, alongside a ransom note asking hundreds to thousands of dollars’ worth of cryptocurrency.

Typically this is kind of the reality — however, attackers aren’t very similar to each other and not all may have the technical ability or would even attempt to go to such lengths.

Thus as of late, there was a case where the entire website files were apparently encrypted and had their file names changed to affix a “.crypt”.

Among the files, we additionally found the ransom note one might usually discover in this type of malware, but this one was somewhat unusual — it wasn’t an HTML or a .txt file. Rather, the ransom note was actually located inside a PHP file and appeared to contain actual capacities.

Here is a more critical look at the file.

The code of the malicious PHP file is as follows:

‘.base64_decode(‘PHRpdGxlPkw0TkMzNCBSYW5zb213YXJlPC90aXRsZT4KPGx[pbmsgcmVj[REDACTED BASE64 CODE]dCBNYWlsIDogbDRuYzM0MEBnbWFpbC5jb20=’).’

At first glance, nothing looks particularly surprising here, when decoded the result is:

L4NC34 Ransomware

“;
}

function decdir($dir){
$files = array_diff(scandir($dir), array(‘.’, ‘..’));
foreach($files as $file) {
if(is_dir($dir.”/”.$file)){
decdir($dir.”/”.$file);
}else {
decfile($dir.”/”.$file);
}
}
}

decdir($_SERVER[‘DOCUMENT_ROOT’]);
echo “
Webroot Decrypted
“;
unlink($_SERVER[‘PHP_SELF’]);
unlink(‘.htaccess’);
copy(‘htabackup’,’.htaccess’);
echo ‘Success !!!’;
} else {
echo ‘Failed Password !!!’;
}
exit();
}
?>



L4NC34 ransomware

Your Website Is Encrypted

Don’t Change the Filename because it Can Damage the File If You Want to Return You Must Enter the Password First

Send Me $10 For Back Your Website

Bitcoin Address :

Contact Mail: [email protected]




Now the portions of code responsible for displaying the ransom note, along with the actual decryption process for the files are very clearly visible.

However, this code contains a few specific characteristics that are worth noting.

$input = $_POST[‘pass’];
$pass = “9c6679accb84e3ef938b1f4c24158355”;
if(isset($input)) {
if(md5($input) == $pass) {

This ‘snippet’ basically verifies if the password inputted on the page coordinates the hardcoded md5 hash. That appears to be somewhat odd; one may expect that the alleged key was not hardcoded — yet if so, at that point there might be a purpose behind these apparently encrypted files.

This next bit is answerable for the ransomware’s file decryption function:

function decfile($filename){
if (strpos($filename, ‘.crypt’) === FALSE) {
return;
}
$decrypted = gzinflate(file_get_contents($filename));
file_put_contents(str_replace(‘.crypt’, ”, $filename), $decrypted);
unlink(‘crypt.php’);
unlink(‘.htaccess’);
unlink($filename);
echo “$filename Decrypted !!!
“;

While there really isn’t anything special or very complex about it. The decryption process just seems to take into account the actual contents of the file and then gzinflate them.

From what is clearly evident here, it’s safe to assume that the only way this hacker “encrypted” the files was to gzdeflate the files and change their file name.

This is what one of the encrypted files looked like:

Backing up to the original ransom note/script and modifying it to execute the decryption function without affecting anything else.

We can go ahead and run it either through a terminal or through the browser directly. And when done so with the following command:


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Microsoft Issues Its First Ever ‘Targeted’ Warning ; Saving VPN Servers of Hospitals – Disposable mail news

Following a recent disclosure about Iranian hackers targeting on vulnerabilities in VPN servers like the Pulse Secure, Palo Alto Systems, Fortinet, and Citrix, Microsoft gave its first-ever ‘targeted’ warning to a few dozen hospitals, informing them of the vulnerabilities in their own virtual private network (VPN) appliances.

With the organizations depending all the more heavily on the VPN servers as the lockdowns are in full swing of the unfortunate outbreak of the Corona Virus. They had no other option except to fall back to this means to help telecommuters but that in the end has made that specific part of the system a weakness i.e a soft spot for ransomware attackers to target – specifically at hospitals with already stressed assets.

The Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency (DHS CISA) a month ago cautioned all organizations to fix VPN services, however, Microsoft is especially worried about hospitals’ vulnerability to human-operated ransomware due to unpatched VPN servers.

One group the Microsoft team has been following is the REvil, otherwise known as Sodinokibi, ransomware gang, which is known for setting monstrous ransom demands for businesses and government agencies.

While the ransomware gang hasn’t yet developed new attack techniques but instead has repurposed strategies from state-sponsored attacks for new campaigns that exploit the heightened requirement for information in the current coronavirus crisis.

The Microsoft Threat Protection Intelligence Team uncovered in a new post, “Through Microsoft’s vast network of threat intelligence sources, and we identified several dozens of hospitals with vulnerable gateway and VPN appliances in their infrastructure.”

“To help these hospitals, many already inundated with patients, we sent out a first-of-its-kind targeted notification with important information about the vulnerabilities,” it added later.

When mentioning these new ransomware gangs the Microsoft team noted, “We haven’t seen technical innovations in these new attacks, only social engineering tactics tailored to prey on people’s fears and the urgent need for information.”

And so the Multinational Technology’s recommendation to hospitals and various other organizations is to follow three key steps to shield their VPN services from attacks:

  • Apply all available security updates for VPN and firewall configurations. 
  • Monitor and pay special attention to your remote access infrastructure. 
  •  Turn on attack surface reduction rules, including rules that block credential theft and ransomware activity. 

Apart from these, there are a few more published by Microsoft to further help mitigate these attacks.


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