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

What is Troj/Zegost-U infection?

In this post you will certainly find about the interpretation of Troj/Zegost-U and its adverse effect on your computer. Such ransomware are a type of malware that is clarified by online scams to require paying the ransom money by a target.

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In the majority of the situations, Troj/Zegost-U infection will instruct its targets to launch funds move for the purpose of reducing the effects of the amendments that the Trojan infection has introduced to the target’s device.

Troj/Zegost-U Summary

These modifications can be as follows:

  • Executable code extraction;
  • Creates RWX memory;
  • Reads data out of its own binary image;
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data.;
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the records located on the target’s hard drive — so the victim can no longer use the information;
  • Preventing routine accessibility to the victim’s workstation;

Related domains:



The most common networks whereby Troj/Zegost-U are injected are:

  • By ways of phishing e-mails;
  • As a consequence of user winding up on a source that organizes a harmful software program;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the target’s PC or protect against the gadget from working in a proper manner – while also placing a ransom note that discusses the demand for the targets to effect the settlement for the function of decrypting the papers or restoring the file system back to the initial problem. In the majority of circumstances, the ransom note will certainly come up when the customer reboots the COMPUTER after the system has actually already been damaged.

Troj/Zegost-U circulation networks.

In different edges of the world, Troj/Zegost-U grows by jumps and also bounds. Nevertheless, the ransom notes and techniques of extorting the ransom money quantity may vary relying on specific regional (local) setups. The ransom money notes as well as methods of extorting the ransom money quantity might differ depending on particular local (regional) setups.

Ransomware injection

For example:

    Faulty alerts about unlicensed software.

    In particular locations, the Trojans typically wrongfully report having found some unlicensed applications made it possible for on the sufferer’s device. The alert after that demands the customer to pay the ransom.

    Faulty declarations concerning unlawful material.

    In countries where software program piracy is much less prominent, this method is not as effective for the cyber fraudulences. Additionally, the Troj/Zegost-U popup alert may wrongly declare to be stemming from a police establishment as well as will certainly report having situated youngster porn or other unlawful information on the device.

    Troj/Zegost-U popup alert might wrongly assert to be deriving from a regulation enforcement organization and also will certainly report having located kid pornography or other illegal data on the device. The alert will similarly include a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: 88793EFE
md5: 84671be71e622a1c2bf9b3f5156a1eca
name: 84671BE71E622A1C2BF9B3F5156A1ECA.mlw
sha1: 85700630323b33fbf63c460f38034dc72b4cf10b
sha256: 02227aa41096f3214b482d4a34255ae5728df6547655f08763c84d7802a3dead
sha512: d681658f439e1e4f1758b0266cae4ce18a4b2fba1cb2ead0d46da69d18d7bc7e066f28fd2257dfec043337d008534353df7e610c4f11b594224d4e3dee0ec17a
ssdeep: 24576:stT0GIueF3iQbqXeqmtBEzdg4fuhGiu4bjsBIIGfKKO:cTEueliQVnBEpg4Wxfaa+
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: x5353x8d8ax6280x672f x7248x6743x6240x6709
CompanyName: x5353x8d8ax6280x672f
Comments: x8054x7cfbQQxff1a738537818
ProductName: x65b0MTx4e09x57fax91d1x7cfbx7edf-x7269x54c1x7248 V1.0.1
FileDescription: x8054x7cfbQQxff1a738537818
Translation: 0x0804 0x04b0

Troj/Zegost-U also known as:

K7AntiVirusTrojan ( 0052c8a31 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
CrowdStrikewin/malicious_confidence_100% (W)
K7GWTrojan ( 0052c8a31 )
AvastWin32:MalOb-IJ [Cryp]
VIPRETrojan-Dropper.Win32.Resdro.b (v) (not malicious)
EmsisoftGen:Trojan.Heur.RP.7u3@bqghPEjb (B)
SentinelOneStatic AI – Malicious PE
MAXmalware (ai score=82)
RisingTrojan.Generic@ML.100 (RDML:ISKu+44x8STZsNEkBH00vg)
AVGWin32:MalOb-IJ [Cryp]

How to remove Troj/Zegost-U 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 Troj/Zegost-U 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 Troj/Zegost-U 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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