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

What is Trojan.Win32.Fsysna.efbh infection?

In this post you will certainly discover regarding the meaning of Trojan.Win32.Fsysna.efbh as well as its unfavorable influence on your computer. Such ransomware are a form of malware that is specified by online frauds to demand paying the ransom by a sufferer.

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Most of the cases, Trojan.Win32.Fsysna.efbh infection will advise its victims to start funds transfer for the function of counteracting the changes that the Trojan infection has presented to the victim’s device.

Trojan.Win32.Fsysna.efbh Summary

These alterations can be as adheres to:

  • Executable code extraction;
  • Compression (or decompression);
  • Creates RWX memory;
  • Reads data out of its own binary image;
  • Installs itself for autorun at Windows startup;
  • Creates a hidden or system file;
  • Network activity detected but not expressed in API logs;
  • Creates a copy of itself;
  • Anomalous binary characteristics;
  • Ciphering the records found on the target’s hard disk drive — so the sufferer can no longer make use of the data;
  • Preventing routine access to the target’s workstation;

Related domains: Ransom.Troldesh Ransom.Troldesh


The most regular channels through which Trojan.Win32.Fsysna.efbh Ransomware are infused are:

  • By methods of phishing e-mails;
  • As an effect of user winding up on a source that hosts a harmful software program;

As quickly as the Trojan is successfully injected, it will either cipher the data on the target’s PC or prevent the gadget from operating in a correct fashion – while additionally positioning a ransom money note that discusses the need for the targets to impact the settlement for the purpose of decrypting the files or restoring the documents system back to the first condition. In most circumstances, the ransom note will come up when the customer reboots the PC after the system has already been harmed.

Trojan.Win32.Fsysna.efbh distribution channels.

In different corners of the globe, Trojan.Win32.Fsysna.efbh grows by jumps and bounds. Nonetheless, the ransom notes and also tricks of extorting the ransom money amount might vary depending on certain neighborhood (local) setups. The ransom money notes and tricks of extorting the ransom money amount may vary depending on certain neighborhood (local) settings.

Ransomware injection

For example:

    Faulty alerts about unlicensed software application.

    In specific areas, the Trojans typically wrongfully report having found some unlicensed applications allowed on the victim’s gadget. The alert then demands the customer to pay the ransom.

    Faulty statements about prohibited web content.

    In nations where software program piracy is much less preferred, this technique is not as effective for the cyber fraudulences. Conversely, the Trojan.Win32.Fsysna.efbh popup alert may falsely claim to be originating from a law enforcement institution as well as will certainly report having situated child porn or other prohibited information on the tool.

    Trojan.Win32.Fsysna.efbh popup alert might incorrectly claim to be deriving from a regulation enforcement institution and also will certainly report having situated kid porn or other illegal information on the gadget. The alert will likewise contain a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 51DAD985
md5: 8cf24b4d47efa39170cdb8fd61b6e532
name: 8CF24B4D47EFA39170CDB8FD61B6E532.mlw
sha1: 5d52bf2b6774713723bcd8defcc96214564baacf
sha256: bfa5704ad799c89e2194cfe8844e9826d92e3d3f22aa7aad5216b21a317b3261
sha512: fa335dbcb01aa5409413ae5868d9cd910e4929b29efa3c0b82745e63bb6be6572ac705be8fc8077bc7532159fcb9cfea371c3158ba3d7af7cc0f024e330e6bff
ssdeep: 24576:6ulLqs8dp71Uk3MQQnTou1poZRFs7Eh+G+axQ1SkodjWqmEaVBW5p:6uZqbpycMQQTjMZRFoAvjFmEUA
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

0: [No Data]

Trojan.Win32.Fsysna.efbh also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 005041161 )
Lionic Trojan.Win32.Fsysna.4!c
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Trojan.GenericKD.4298549
Cylance Unsafe
Zillya Trojan.Agent.Win32.1654769
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Trojan:Win32/Fsysna.3f3d778f
K7GW Trojan ( 005041161 )
Cybereason malicious.d47efa
Symantec Ransom.Troldesh
APEX Malicious
Avast Win32:Rootkit-gen [Rtk]
Kaspersky Trojan.Win32.Fsysna.efbh
BitDefender Trojan.GenericKD.4298549
NANO-Antivirus Trojan.Nsis.Fsysna.elltvu
MicroWorld-eScan Trojan.GenericKD.4298549
Tencent Win32.Trojan.Fsysna.Efuw
Ad-Aware Trojan.GenericKD.4298549
Sophos Mal/Generic-S + Mal/Cerber-AA
VIPRE Trojan.Win32.Generic!BT
Emsisoft Trojan.GenericKD.4298549 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Malware.Gen
Avira HEUR/AGEN.1102531
Microsoft Ransom:Win32/Troldesh.A
Arcabit Trojan.Generic.D419735
GData NSIS.Trojan-Ransom.Cerber.AA
AhnLab-V3 Trojan/Win32.Cerber.R194529
McAfee Artemis!8CF24B4D47EF
MAX malware (ai score=82)
Panda Trj/CI.A
Fortinet W32/Injector.SZ!tr
AVG Win32:Rootkit-gen [Rtk]

How to remove Trojan.Win32.Fsysna.efbh 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.Win32.Fsysna.efbh 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan.Win32.Fsysna.efbh 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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