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

What is Ser.Zusy.2503 infection?

In this article you will locate regarding the definition of Ser.Zusy.2503 and its adverse effect on your computer system. Such ransomware are a type of malware that is clarified by online fraudulences to demand paying the ransom money by a sufferer.

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In the majority of the situations, Ser.Zusy.2503 infection will certainly advise its targets to start funds transfer for the function of reducing the effects of the amendments that the Trojan infection has actually presented to the sufferer’s gadget.

Ser.Zusy.2503 Summary

These adjustments can be as complies with:

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the victim’s hard disk drive — so the victim can no longer make use of the information;
  • Preventing regular accessibility to the sufferer’s workstation;


The most normal networks through which Ser.Zusy.2503 Ransomware are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a consequence of user winding up on a resource that organizes a destructive software program;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the data on the victim’s computer or prevent the device from operating in an appropriate way – while additionally placing a ransom note that states the demand for the sufferers to effect the settlement for the objective of decrypting the files or restoring the data system back to the preliminary condition. In most circumstances, the ransom money note will certainly show up when the client restarts the PC after the system has actually currently been damaged.

Ser.Zusy.2503 distribution networks.

In various corners of the globe, Ser.Zusy.2503 expands by jumps and also bounds. However, the ransom money notes and methods of obtaining the ransom money amount might differ depending on particular regional (regional) settings. The ransom money notes and also methods of extorting the ransom amount might differ depending on specific regional (local) settings.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software program.

    In certain locations, the Trojans often wrongfully report having actually discovered some unlicensed applications made it possible for on the victim’s tool. The alert then demands the customer to pay the ransom.

    Faulty statements concerning prohibited web content.

    In countries where software program piracy is less prominent, this method is not as reliable for the cyber scams. Alternatively, the Ser.Zusy.2503 popup alert might falsely assert to be stemming from a law enforcement establishment as well as will certainly report having located child pornography or other illegal data on the tool.

    Ser.Zusy.2503 popup alert might falsely declare to be obtaining from a regulation enforcement organization and also will certainly report having situated kid porn or various other unlawful information on the device. The alert will in a similar way include a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 26A3A005
md5: 18837499d950c4d4236a182aa499cef4
name: 18837499D950C4D4236A182AA499CEF4.mlw
sha1: a1b9b67ed1cc603fcf327218e533c07bcd3c1df0
sha256: 76ad75063cf7c7b9def679aa643aface22c91d158e1d7bd864c83124e1a22d12
sha512: d8081512882f4211869ee74b8153c0696c72d68bfaade423d7ff155bfb420948b00d6b0bf8a337d170f9850461d9e29c2b5b7154bef029960cabe4e8820ad7d9
ssdeep: 6144:bFYUlENGBnLtEtEtEtEtEtEtEtEtbIR9AABEm:uUlEY7eeeeeeeebIp
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ser.Zusy.2503 also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Ser.Zusy.2503
McAfee GenericRXMO-EK!18837499D950
Cylance Unsafe
Sangfor Malware
BitDefender Gen:Variant.Ser.Zusy.2503
Cybereason malicious.9d950c
Cyren W32/Ursnif.CX.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
ClamAV Win.Packed.Ursnif-9790226-0
Kaspersky HEUR:Trojan.Win32.Generic
Ad-Aware Gen:Variant.Ser.Zusy.2503
Emsisoft Gen:Variant.Ser.Zusy.2503 (B)
F-Secure Trojan.TR/Crypt.ZPACK.Gen
Invincea ML/PE-A
SentinelOne Static AI – Malicious PE
Avira TR/Crypt.ZPACK.Gen
MAX malware (ai score=88)
Microsoft Trojan:Win32/Wacatac.C!ml
Gridinsoft Ransom.Win32.Wacatac.oa!s5
Arcabit Trojan.Ser.Zusy.D9C7
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Ser.Zusy.2503
Cynet Malicious (score: 100)
BitDefenderTheta AI:Packer.B31852471E
ALYac Gen:Variant.Ser.Zusy.2503
VBA32 BScope.Trojan.Gozi
ESET-NOD32 a variant of Win32/Spy.Ursnif.CZ
Rising Spyware.Ursnif!8.1DEF (TFE:3:ruBxUwpXEJT)
Yandex Trojan.GenAsa!0RkO23FWTKc
eGambit Unsafe.AI_Score_84%
AVG Win32:TrojanX-gen [Trj]
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 HEUR/QVM20.1.38DF.Malware.Gen

How to remove Ser.Zusy.2503 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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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 Ser.Zusy.2503 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 Ser.Zusy.2503 you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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