Backdoor.Agent.Zegost

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

What is Backdoor.Agent.Zegost infection?

In this article you will locate concerning the meaning of Backdoor.Agent.Zegost as well as its unfavorable effect on your computer. Such ransomware are a type of malware that is clarified by on-line fraudulences to require paying the ransom money by a target.

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Most of the instances, Backdoor.Agent.Zegost virus will certainly advise its sufferers to start funds transfer for the objective of reducing the effects of the changes that the Trojan infection has actually introduced to the sufferer’s device.

Backdoor.Agent.Zegost Summary

These modifications can be as complies with:

  • 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;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents found on the victim’s hard disk — so the victim can no more utilize the data;
  • Preventing normal access to the victim’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
z.whorecord.xyzBehavesLike.Win32.Ransomware.dc
wmi.4i7i.comBehavesLike.Win32.Ransomware.dc
a.tomx.xyzBehavesLike.Win32.Ransomware.dc

Backdoor.Agent.Zegost

The most typical networks where Backdoor.Agent.Zegost Ransomware are injected are:

  • By methods of phishing emails;
  • As a consequence of customer winding up on a resource that holds a harmful software;

As soon as the Trojan is successfully injected, it will either cipher the information on the target’s computer or stop the device from functioning in an appropriate manner – while likewise placing a ransom money note that points out the need for the sufferers to impact the payment for the objective of decrypting the records or recovering the file system back to the first problem. In a lot of circumstances, the ransom note will certainly show up when the client restarts the COMPUTER after the system has actually already been harmed.

Backdoor.Agent.Zegost circulation channels.

In different edges of the globe, Backdoor.Agent.Zegost grows by jumps and also bounds. Nonetheless, the ransom money notes as well as techniques of extorting the ransom money quantity may differ relying on specific local (regional) setups. The ransom notes as well as methods of obtaining the ransom money amount may differ depending on particular regional (regional) setups.

Ransomware injection

For example:

    Faulty notifies about unlicensed software.

    In particular areas, the Trojans commonly wrongfully report having actually detected some unlicensed applications made it possible for on the victim’s tool. The sharp after that demands the individual to pay the ransom.

    Faulty statements regarding illegal material.

    In countries where software application piracy is much less popular, this technique is not as reliable for the cyber scams. Alternatively, the Backdoor.Agent.Zegost popup alert might falsely claim to be stemming from a police institution and will report having located kid porn or other unlawful information on the device.

    Backdoor.Agent.Zegost popup alert might wrongly claim to be deriving from a law enforcement establishment and will certainly report having located kid porn or other prohibited information on the gadget. The alert will likewise consist of a demand 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
FileVersion: 1.0.0.0
CompanyName: MSSQL SERVER
Comments: MSSQL SERVER
ProductName: MSSQL SERVER
ProductVersion: 1.0.0.0
FileDescription: MSSQL SERVER
Translation: 0x0804 0x04b0

Backdoor.Agent.Zegost also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanGen:Variant.Kazy.218290
FireEyeGeneric.mg.3a813081c4cf6789
CAT-QuickHealBackdoor.ZegostRI.S11834413
McAfeeRDN/Generic BackDoor
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforMalware
CrowdStrikewin/malicious_confidence_90% (W)
BitDefenderGen:Variant.Kazy.218290
K7GWTrojan-Downloader ( 0054d9311 )
K7AntiVirusTrojan-Downloader ( 0054d9311 )
TrendMicroBackdoor.Win32.ZEGOST.THCBOBO
BaiduWin32.Trojan.Farfli.ai
F-ProtW32/KillAV.AU.gen!Eldorado
TotalDefenseWin32/Oflwr.A!crypt
APEXMalicious
AvastWin32:Trojan-gen
ClamAVWin.Trojan.Generic-6305873-0
GDataWin32.Trojan.Agent.WP
KasperskyTrojan.Win32.APosT.kqm
AlibabaBackdoor:Win32/APosT.ea799311
NANO-AntivirusTrojan.Win32.Tiny.hcqagp
ViRobotTrojan.Win32.Z.Kazy.266240.BE
AegisLabTrojan.Win32.APosT.4!c
RisingTrojan.Injector!1.A1C3 (CLOUD)
Ad-AwareGen:Variant.Kazy.218290
SophosMal/Generic-S
ComodoTrojWare.Win32.Toga.RFS@5tc75a
F-SecureHeuristic.HEUR/AGEN.1039651
DrWebTrojan.Siggen9.15780
ZillyaTrojan.APosT.Win32.1294
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Ransomware.dc
Trapminemalicious.high.ml.score
EmsisoftGen:Variant.Kazy.218290 (B)
IkarusAdWare.Win32.BlackMoon
CyrenW32/KillAV.AU.gen!Eldorado
JiangminHeur:Backdoor/PcClient
MaxSecureTrojan.Malware.7164915.susgen
AviraHEUR/AGEN.1039651
Antiy-AVLTrojan/Win32.APosT
Endgamemalicious (moderate confidence)
ArcabitTrojan.Kazy.D354B2
ZoneAlarmTrojan.Win32.APosT.kqm
MicrosoftBackdoor:Win32/Zegost.DQ
AhnLab-V3Malware/Win32.Generic.C3752959
Acronissuspicious
BitDefenderThetaGen:NN.ZexaF.34104.qmKfaO@8BUfb
ALYacBackdoor.Agent.Zegost
MAXmalware (ai score=80)
VBA32BScope.Trojan.Scar
MalwarebytesTrojan.Dropper
PandaTrj/GdSda.A
ESET-NOD32a variant of Win32/TrojanDownloader.Tiny.NQG
TrendMicro-HouseCallBackdoor.Win32.ZEGOST.THCBOBO
TencentWin32.Trojan.Killav.Llrd
YandexTrojan.DL.Tiny!HhpGr1ba85c
SentinelOneDFI – Malicious PE
eGambitUnsafe.AI_Score_99%
FortinetRiskware/Generic
WebrootW32.Trojan.Gen
AVGFileRepMalware
Paloaltogeneric.ml
Qihoo-360Generic/Trojan.d63

How to remove Backdoor.Agent.Zegost ransomware?

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.Agent.Zegost 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Backdoor.Agent.Zegost you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

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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