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

What is Backdoor.ZegostRI.S11834413 infection?

In this post you will certainly discover about the interpretation of Backdoor.ZegostRI.S11834413 and also its unfavorable effect on your computer system. Such ransomware are a kind of malware that is specified by on the internet scams to require paying the ransom by a target.

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Most of the cases, Backdoor.ZegostRI.S11834413 infection will instruct its sufferers to initiate funds move for the objective of reducing the effects of the amendments that the Trojan infection has actually introduced to the victim’s device.

Backdoor.ZegostRI.S11834413 Summary

These alterations can be as follows:

  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • 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!
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the victim’s hard disk drive — so the victim can no more make use of the data;
  • Preventing normal accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains BehavesLike.Win32.Ransomware.dc


The most common channels where Backdoor.ZegostRI.S11834413 are injected 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 an effect of customer ending up on a source that hosts a malicious software;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s computer or avoid the tool from operating in a correct manner – while likewise positioning a ransom note that mentions the demand for the sufferers to effect the settlement for the objective of decrypting the papers or bring back the file system back to the first condition. In many circumstances, the ransom note will certainly come up when the client reboots the COMPUTER after the system has already been harmed.

Backdoor.ZegostRI.S11834413 distribution networks.

In different edges of the world, Backdoor.ZegostRI.S11834413 grows by leaps and also bounds. However, the ransom money notes as well as techniques of obtaining the ransom money quantity might vary relying on certain local (local) settings. The ransom notes and also tricks of obtaining the ransom money quantity may differ depending on specific regional (regional) setups.

Ransomware injection

For example:

    Faulty informs about unlicensed software application.

    In certain areas, the Trojans typically wrongfully report having actually detected some unlicensed applications allowed on the sufferer’s device. The sharp then requires the individual to pay the ransom money.

    Faulty declarations concerning prohibited material.

    In nations where software application piracy is much less preferred, this approach is not as effective for the cyber frauds. Conversely, the Backdoor.ZegostRI.S11834413 popup alert may wrongly claim to be deriving from a law enforcement organization and will certainly report having located child porn or other illegal information on the device.

    Backdoor.ZegostRI.S11834413 popup alert might falsely declare to be obtaining from a law enforcement organization and will report having situated youngster porn or other unlawful data on the device. The alert will likewise have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 490E9E2E
md5: 3a813081c4cf67899c2c3799968b3a0e
name: mssql.exe
sha1: c60ebb8ec3647bd603b1ae931af6d86ef6cdf31d
sha256: ca938d15fcf79107e0a83f2ac1137913867697d6040f6e5e27ad5cc4747525c1
sha512: 852565cb96fcaa3c0cdfdbe54d6420e9aa7f79265c987b1bf4853cf2ab40818453f4e72b01ea20b388c1f94ab9971267700a88dd00f73d8eef171a767cdd0965
ssdeep: 6144:nzJ2M7XWP8hNdb+mlnrBv2a0DMgbF4DC98Z/NgPfEHAo:z/7Gw7+YrBv+MLJ/2PfEg
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: MSSQL SERVER x7248x6743x6240x6709
FileDescription: MSSQL SERVER
Translation: 0x0804 0x04b0

Backdoor.ZegostRI.S11834413 also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Gen:Variant.Kazy.218290
CAT-QuickHeal Backdoor.ZegostRI.S11834413
McAfee RDN/Generic BackDoor
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
CrowdStrike win/malicious_confidence_90% (W)
BitDefender Gen:Variant.Kazy.218290
K7GW Trojan-Downloader ( 0054d9311 )
K7AntiVirus Trojan-Downloader ( 0054d9311 )
TrendMicro Backdoor.Win32.ZEGOST.THCBOBO
F-Prot W32/KillAV.AU.gen!Eldorado
TotalDefense Win32/Oflwr.A!crypt
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Trojan.Generic-6305873-0
GData Win32.Trojan.Agent.WP
Kaspersky Trojan.Win32.APosT.kqm
Alibaba Backdoor:Win32/APosT.ea799311
NANO-Antivirus Trojan.Win32.Tiny.hcqagp
ViRobot Trojan.Win32.Z.Kazy.266240.BE
AegisLab Trojan.Win32.APosT.4!c
Rising Trojan.Injector!1.A1C3 (CLOUD)
Ad-Aware Gen:Variant.Kazy.218290
Sophos Mal/Generic-S
Comodo TrojWare.Win32.Toga.RFS@5tc75a
F-Secure Heuristic.HEUR/AGEN.1039651
DrWeb Trojan.Siggen9.15780
Zillya Trojan.APosT.Win32.1294
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Ransomware.dc
Emsisoft Gen:Variant.Kazy.218290 (B)
Ikarus AdWare.Win32.BlackMoon
Cyren W32/KillAV.AU.gen!Eldorado
Jiangmin Heur:Backdoor/PcClient
MaxSecure Trojan.Malware.7164915.susgen
Avira HEUR/AGEN.1039651
Antiy-AVL Trojan/Win32.APosT
Endgame malicious (moderate confidence)
Arcabit Trojan.Kazy.D354B2
ZoneAlarm Trojan.Win32.APosT.kqm
Microsoft Backdoor:Win32/Zegost.DQ
AhnLab-V3 Malware/Win32.Generic.C3752959
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34104.qmKfaO@8BUfb
ALYac Backdoor.Agent.Zegost
MAX malware (ai score=80)
VBA32 BScope.Trojan.Scar
Malwarebytes Trojan.Dropper
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/TrojanDownloader.Tiny.NQG
TrendMicro-HouseCall Backdoor.Win32.ZEGOST.THCBOBO
Tencent Win32.Trojan.Killav.Llrd
Yandex Trojan.DL.Tiny!HhpGr1ba85c
SentinelOne DFI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet Riskware/Generic
Webroot W32.Trojan.Gen
AVG FileRepMalware
Qihoo-360 Generic/Trojan.d63

How to remove Backdoor.ZegostRI.S11834413 virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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 Backdoor.ZegostRI.S11834413 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 Backdoor.ZegostRI.S11834413 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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