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

What is Worm:Win32/Gamarue.F infection?

In this short article you will certainly discover about the interpretation of Worm:Win32/Gamarue.F and its adverse influence on your computer system. Such ransomware are a type of malware that is clarified by online frauds to require paying the ransom by a victim.

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Most of the instances, Worm:Win32/Gamarue.F ransomware will advise its victims to initiate funds move for the function of neutralizing the modifications that the Trojan infection has actually presented to the sufferer’s gadget.

Worm:Win32/Gamarue.F Summary

These alterations can be as follows:

  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Detects Sandboxie through the presence of a library;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records situated on the victim’s hard drive — so the target can no longer utilize the data;
  • Preventing normal access to the target’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 common channels whereby Worm:Win32/Gamarue.F Trojans are injected are:

  • By ways of phishing emails;
  • As an effect of user ending up on a resource that organizes a destructive software program;

As quickly as the Trojan is successfully infused, it will either cipher the data on the victim’s PC or stop the device from functioning in a proper manner – while likewise positioning a ransom money note that points out the requirement for the sufferers to effect the settlement for the purpose of decrypting the papers or restoring the documents system back to the preliminary problem. In the majority of instances, the ransom money note will show up when the client reboots the PC after the system has currently been damaged.

Worm:Win32/Gamarue.F circulation networks.

In various corners of the globe, Worm:Win32/Gamarue.F grows by jumps and also bounds. Nonetheless, the ransom notes as well as techniques of extorting the ransom amount may vary depending upon certain local (local) settings. The ransom notes as well as techniques of obtaining the ransom money quantity might differ depending on certain local (local) settings.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software.

    In specific locations, the Trojans often wrongfully report having spotted some unlicensed applications allowed on the target’s gadget. The sharp after that demands the individual to pay the ransom.

    Faulty declarations concerning illegal material.

    In nations where software piracy is less popular, this technique is not as reliable for the cyber frauds. Additionally, the Worm:Win32/Gamarue.F popup alert may falsely declare to be deriving from a police establishment and will report having located child pornography or various other unlawful information on the device.

    Worm:Win32/Gamarue.F popup alert may incorrectly declare to be obtaining from a law enforcement organization and also will report having located youngster pornography or other illegal information on the tool. The alert will in a similar way have a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 9737D23C
md5: 3b80f4339caa5c1fddfcbb67cfce10e0
name: 3B80F4339CAA5C1FDDFCBB67CFCE10E0.mlw
sha1: d4b670cda23862a03c74ae75b6a74cf48f0522ef
sha256: a953ad82a63ccaf1aa1f9ac8c864b8b10b6985517b82eab8f0e568f85e2069de
sha512: e87d837d79cf23b9d9d4147235d7c43cb8907f52c14045fc1a1e3a8e2937cf342323ad5bcb647acb9fee24eaf903a8d29b8c95c4c71e49977149203b4c016503
ssdeep: 1536:EituTXCmCnzZ0zqEDKWd5fX3hgUPmYZ+o:EituLCZ7EDrDCUPd/
type: MS-DOS executable

Version Info:

LegalCopyright: Copyright xa9 VirusBlokAda Ltd. 1993-2009
CompanyName: the VideoLAN Team
ProductName: Vba32 Loader
FileDescription: Vba32 Loader
Translation: 0x0409 0x0000

Worm:Win32/Gamarue.F also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
DrWeb BackDoor.Andromeda.22
Cynet Malicious (score: 100)
ALYac Gen:Variant.Ransom.359
Cylance Unsafe
Zillya Backdoor.Androm.Win32.229
Sangfor Suspicious.Win32.Evo.atgen
CrowdStrike win/malicious_confidence_100% (D)
Cybereason malicious.39caa5
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.ALXL
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.knqk
BitDefender Gen:Variant.Ransom.359
NANO-Antivirus Trojan.Win32.Andromeda.codywc
MicroWorld-eScan Gen:Variant.Ransom.359
Tencent Win32.Backdoor.Androm.wnw
Ad-Aware Gen:Variant.Ransom.359
Sophos Mal/Generic-S
Comodo Malware@#1aps88enaa2xl
BitDefenderTheta Gen:NN.ZexaF.34738.du0@aiCDFsdi
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Emotet.qc
FireEye Generic.mg.3b80f4339caa5c1f
Emsisoft Gen:Variant.Ransom.359 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Backdoor/Androm.eq
Webroot W32.Malware.Gen
Avira TR/Crypt.XPACK.Gen7
Antiy-AVL Trojan/Generic.ASMalwS.7AC93F
Kingsoft Win32.Hack.Androm.hz.(kcloud)
Microsoft Worm:Win32/Gamarue.F
Arcabit Trojan.Ransom.359
AegisLab Trojan.Win32.Androm.m!c
GData Gen:Variant.Ransom.359
McAfee Artemis!3B80F4339CAA
MAX malware (ai score=84)
Panda Generic Malware
Rising [email protected] (RDML:JcW18CZFzO57htIGsvOc4Q)
Yandex Backdoor.Androm!FuNthHfktHc
Ikarus Backdoor.Win32.Androm
Fortinet W32/Shiz.NCF!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Worm:Win32/Gamarue.F ransomware?

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 Worm:Win32/Gamarue.F 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 Worm:Win32/Gamarue.F you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
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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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