Backdoor:Win32/Zegost
Matthew Alvarez
Updated on April 27, 2026
What is Backdoor:Win32/Zegost infection?
In this article you will certainly discover regarding the definition of Backdoor:Win32/Zegost as well as its unfavorable influence on your computer. Such ransomware are a type of malware that is elaborated by on the internet scams to require paying the ransom by a sufferer.
In the majority of the situations, Backdoor:Win32/Zegost infection will instruct its victims to start funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the target’s device.
Backdoor:Win32/Zegost Summary
These modifications can be as complies with:
- At least one process apparently crashed during execution;
- Possible date expiration check, exits too soon after checking local time;
- A process attempted to delay the analysis task.;
- Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
- Unconventionial binary language: Chinese (Simplified);
- Unconventionial language used in binary resources: Chinese (Simplified);
- Attempts to stop active services;
- Crashed cuckoomon during analysis. Report this error to the Github repo.;
- 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!
- Checks the system manufacturer, likely for anti-virtualization;
- Creates a copy of itself;
- Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
- Ciphering the papers found on the sufferer’s disk drive — so the sufferer can no longer utilize the information;
- Preventing routine access to the sufferer’s workstation;
| z.whorecord.xyz | Trojan/W32.Vundo.200704.B |
| a.tomx.xyz | Trojan/W32.Vundo.200704.B |
Backdoor:Win32/Zegost
One of the most normal networks where Backdoor:Win32/Zegost are infused are:
- By ways of phishing e-mails;
- As a consequence of customer ending up on a source that hosts a harmful software application;
As soon as the Trojan is successfully infused, it will certainly either cipher the information on the target’s PC or prevent the tool from working in an appropriate manner – while additionally placing a ransom note that mentions the demand for the sufferers to effect the payment for the function of decrypting the files or bring back the file system back to the first problem. In the majority of instances, the ransom money note will turn up when the customer reboots the PC after the system has already been damaged.
Backdoor:Win32/Zegost circulation networks.
In various edges of the globe, Backdoor:Win32/Zegost grows by leaps and bounds. Nevertheless, the ransom notes and methods of obtaining the ransom quantity may vary depending upon certain regional (regional) setups. The ransom notes and also methods of obtaining the ransom money quantity may vary depending on specific local (local) settings.
As an example:
Faulty informs concerning unlicensed software.
In particular areas, the Trojans commonly wrongfully report having actually detected some unlicensed applications allowed on the sufferer’s device. The alert after that requires the user to pay the ransom money.
Faulty statements about illegal material.
In countries where software piracy is much less prominent, this method is not as reliable for the cyber frauds. Alternatively, the Backdoor:Win32/Zegost popup alert might incorrectly declare to be deriving from a law enforcement institution and also will report having located child pornography or other unlawful data on the device.
Backdoor:Win32/Zegost popup alert might incorrectly claim to be acquiring from a law enforcement institution and will report having situated kid pornography or other illegal information on the gadget. The alert will likewise contain a demand for the individual to pay the ransom.
Technical details
File Info:
crc32: 46B181CEmd5: 538a475b0b99792bff68661992d0a263name: sd.exesha1: 8e53d10777c66bbeab432f98d00c32924d63f546sha256: e54b943cfc07ec7118b8f910c9abbc238c21fbf8f72d2de8c7f57c5e4885e039sha512: 30c337e852ab24e90c98dcaeded6a32382fa8574b5db5b8a082b0166a3595caf11d747ed5e5606d4233632fdce12a92017671f36bfb67e86d138a90c08172406ssdeep: 6144:6sIt6nW8QPBTyPRqyhYPbHcTBlhHrBndnkv0:39W85Jq8YPbHcT3ktype: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
LegalCopyright: (C) Microsoft Corporation. All rights reserved.InternalName: SPUNINST.EXEFileVersion: 6.3.0004.1 built by: dnsrvCompanyName: Microsoft CorporationProductName: Microsoft(R) Windows(R) Operating SystemProductVersion: 6.3.0004.1FileDescription: Windows Service Pack Uninstall OriginalFilename: SPUNINST.EXETranslation: 0x0804 0x04b0
Backdoor:Win32/Zegost also known as:
| Bkav | W32.ZegostQKB.Trojan |
| DrWeb | BackDoor.Zegost.48 |
| MicroWorld-eScan | Trojan.Generic.4863548 |
| FireEye | Generic.mg.538a475b0b99792b |
| CAT-QuickHeal | TrojanDropper.Zegost.C5 |
| Qihoo-360 | Dropper.Win32.Zegost.A |
| McAfee | BackDoor-CEP.gen.cn |
| Cylance | Unsafe |
| VIPRE | Trojan.Win32.Generic.pak!cobra |
| AegisLab | Trojan.Win32.Bjlog.lmoo |
| Sangfor | Malware |
| K7AntiVirus | Trojan ( 004b9fb21 ) |
| BitDefender | Trojan.Generic.4863548 |
| K7GW | Trojan ( 004b9fb21 ) |
| Cybereason | malicious.b0b997 |
| TrendMicro | TROJ_REDOS.SME |
| BitDefenderTheta | AI:Packer.B5D8E9831F |
| F-Prot | W32/Zegost.C.gen!Eldorado |
| Symantec | Trojan Horse |
| TotalDefense | Win32/Zegost.CJ |
| APEX | Malicious |
| Avast | Win32:Zegost-C [Trj] |
| ClamAV | Win.Spyware.78740-1 |
| Kaspersky | Trojan-PSW.Win32.Bjlog.dtwr |
| Alibaba | TrojanPSW:Win32/Bjlog.4a699022 |
| NANO-Antivirus | Trojan.Win32.Bjlog.drshei |
| ViRobot | Trojan.Win32.PSWBjlog.200704 |
| Rising | Trojan.DL.Win32.GameOlx.xm (CLOUD) |
| Ad-Aware | Trojan.Generic.4863548 |
| TACHYON | Trojan/W32.Vundo.200704.B |
| Emsisoft | Trojan.Generic.4863548 (B) |
| Comodo | Backdoor.Win32.Zegost.B@1qlsm2 |
| F-Secure | Backdoor:W32/Bjlog.D |
| Baidu | Win32.Backdoor.Zegost.b |
| Zillya | Trojan.Bjlog.Win32.12017 |
| Invincea | heuristic |
| McAfee-GW-Edition | BehavesLike.Win32.Jeefo.ch |
| Trapmine | malicious.high.ml.score |
| Sophos | Mal/PWS-GA |
| Ikarus | Trojan.Win32.Senta |
| Cyren | W32/Zegost.L.gen!Eldorado |
| Jiangmin | Trojan/PSW.Bjlog.clm |
| Webroot | W32.Trojan.Gen |
| Avira | TR/PSW.Bjlog.lfzb |
| Antiy-AVL | Trojan[PSW]/Win32.Bjlog.dtwr |
| Microsoft | Backdoor:Win32/Zegost |
| Endgame | malicious (high confidence) |
| Arcabit | Trojan.Generic.D4A363C |
| SUPERAntiSpyware | |
| ZoneAlarm | Trojan-PSW.Win32.Bjlog.dtwr |
| GData | Trojan.Generic.4863548 |
| Cynet | Malicious (score: 100) |
| AhnLab-V3 | Dropper/Zegost.206136 |
| Acronis | suspicious |
| VBA32 | TrojanPSW.Bjlog |
| ALYac | Trojan.Generic.4863548 |
| MAX | malware (ai score=81) |
| Malwarebytes | Trojan.Dropper |
| Panda | Generic Malware |
| ESET-NOD32 | Win32/Redosdru.GL |
| TrendMicro-HouseCall | TROJ_REDOS.SME |
| Tencent | Backdoor.Win32.Zegost.aaa |
| Yandex | Trojan.Zegost.Gen.5 |
| SentinelOne | DFI – Malicious PE |
| eGambit | Unsafe.AI_Score_99% |
| Fortinet | W32/Bjlog.GL!tr |
| AVG | Win32:Zegost-C [Trj] |
| Paloalto | generic.ml |
| CrowdStrike | win/malicious_confidence_100% (W) |
| MaxSecure | Trojan.Malware.4790996.susgen |
How to remove Backdoor:Win32/Zegost virus?
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:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for Backdoor:Win32/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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove Backdoor:Win32/Zegost you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
