What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Trojan-Ransom.Win32.Darkside.b infection?

In this short article you will find regarding the definition of Trojan-Ransom.Win32.Darkside.b and also its negative impact on your computer system. Such ransomware are a type of malware that is elaborated by on the internet scams to demand paying the ransom by a sufferer.

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Most of the cases, Trojan-Ransom.Win32.Darkside.b ransomware will certainly advise its victims to launch funds transfer for the purpose of counteracting the modifications that the Trojan infection has actually presented to the sufferer’s device.

Trojan-Ransom.Win32.Darkside.b Summary

These adjustments can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • A process attempted to delay the analysis task.;
  • Expresses interest in specific running processes;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Detects VirtualBox through the presence of a device;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the victim’s hard drive — so the sufferer can no longer utilize the data;
  • Preventing routine access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most regular networks where Trojan-Ransom.Win32.Darkside.b are injected are:

  • By methods of phishing emails;
  • As a repercussion of individual ending up on a source that holds a malicious software program;

As quickly as the Trojan is successfully injected, it will either cipher the data on the target’s PC or protect against the device from working in a proper way – while additionally positioning a ransom money note that states the need for the sufferers to effect the payment for the objective of decrypting the papers or restoring the data system back to the initial condition. In many circumstances, the ransom money note will certainly show up when the client restarts the PC after the system has already been damaged.

Trojan-Ransom.Win32.Darkside.b distribution networks.

In various edges of the world, Trojan-Ransom.Win32.Darkside.b expands by jumps and bounds. Nevertheless, the ransom notes as well as techniques of extorting the ransom money quantity might vary depending on specific regional (regional) settings. The ransom notes as well as methods of extorting the ransom money quantity may differ depending on certain regional (regional) setups.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software.

    In certain locations, the Trojans commonly wrongfully report having actually spotted some unlicensed applications made it possible for on the target’s device. The alert after that requires the individual to pay the ransom.

    Faulty declarations about unlawful material.

    In nations where software piracy is less preferred, this method is not as effective for the cyber scams. Alternatively, the Trojan-Ransom.Win32.Darkside.b popup alert might wrongly claim to be originating from a law enforcement establishment as well as will certainly report having situated youngster pornography or other prohibited data on the device.

    Trojan-Ransom.Win32.Darkside.b popup alert may incorrectly assert to be deriving from a law enforcement establishment and will report having situated kid porn or other prohibited information on the device. The alert will similarly contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: E1C611F5
md5: c81dae5c67fb72a2c2f24b178aea50b7
name: C81DAE5C67FB72A2C2F24B178AEA50B7.mlw
sha1: 4bd6437cd1dc77097a7951466531674f80c866c6
sha256: 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a
sha512: 30d63e080f37f34fb29fd46f8fb1572d79f645154a002c8da5914ae3d51e224bc60601f91f5d58ac2ce9f81d56a8ad467d7fde55d429ed269df3c196e6687b2c
ssdeep: 6144:UQyTTOip6TGcWnsmx7KbYrBPIJqcKxxY1:E3gGcWnNJIJqDxxY
type: MS-DOS executable, MZ for MS-DOS

Version Info:

0: [No Data]

Trojan-Ransom.Win32.Darkside.b also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005696151 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.32386
Cynet Malicious (score: 100)
CAT-QuickHeal Trojanransom.Darkside
ALYac Trojan.Ransom.Filecoder
Cylance Unsafe
Zillya Trojan.Obsidium.Win32.802
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/generic.ali2000010
K7GW Trojan ( 005696151 )
Cybereason malicious.c67fb7
Cyren W32/Trojan.UJXE-8785
Symantec Trojan Horse
ESET-NOD32 Win32/Filecoder.DarkSide.A
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky Trojan-Ransom.Win32.Darkside.b
BitDefender Gen:Trojan.Heur.PT.omZ@bSEA3vk
NANO-Antivirus Trojan.Win32.Encoder.hsqsoj
ViRobot Trojan.Win32.S.DarkSide.232256
MicroWorld-eScan Gen:Trojan.Heur.PT.omZ@bSEA3vk
Tencent Win32.Trojan.Agent.Swun
Ad-Aware Gen:Trojan.Heur.PT.omZ@bSEA3vk
Sophos ML/PE-A + Mal/EncPk-ANL
Comodo Packed.Win32.MNSP.Gen@2697wr
BitDefenderTheta AI:Packer.A420046E1E
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.DARKSIDE.FAIQ
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
Emsisoft Gen:Trojan.Heur.PT.omZ@bSEA3vk (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1128017
Microsoft Trojan:MSIL/Cryptor
Arcabit Trojan.Heur.PT.E52E2C
AegisLab Trojan.Win32.Malicious.4!c
ZoneAlarm Trojan-Ransom.Win32.Darkside.b
GData Gen:Trojan.Heur.PT.omZ@bSEA3vk
AhnLab-V3 Trojan/Win.Ransomlock.C4465498
Acronis suspicious
McAfee Generic-FAWW!C81DAE5C67FB
MAX malware (ai score=100)
VBA32 TrojanRansom.Agent
Malwarebytes Ransom.DarkSide
TrendMicro-HouseCall Ransom.Win32.DARKSIDE.FAIQ
Rising Ransom.DarkSide!8.11F84 (CLOUD)
Yandex Trojan.Obsidium!eyTqKn+WhnM
Ikarus Trojan.Win32.Obsidium
MaxSecure Trojan.Malware.73774235.susgen
Fortinet W32/Packed.OBSIDIUM.BV!tr
AVG Win32:Trojan-gen

How to remove Trojan-Ransom.Win32.Darkside.b virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Trojan-Ransom.Win32.Darkside.b files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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If the guide doesn’t help you to remove Trojan-Ransom.Win32.Darkside.b you can always ask me in the comments for getting help.

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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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