What is TrojanDownloader:Win32/Zegost.B infection?

In this short article you will discover regarding the meaning of TrojanDownloader:Win32/Zegost.B as well as its unfavorable effect on your computer. Such ransomware are a kind of malware that is elaborated by on-line scams to demand paying the ransom money by a target.

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Most of the situations, TrojanDownloader:Win32/Zegost.B virus will instruct its sufferers to initiate funds move for the objective of counteracting the changes that the Trojan infection has introduced to the victim’s gadget.

TrojanDownloader:Win32/Zegost.B Summary

These alterations can be as adheres to:

  • A process attempted to delay the analysis task.;
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • Uses Windows utilities for basic functionality;
  • Ciphering the papers found on the victim’s hard disk — so the victim can no more use the data;
  • Preventing routine accessibility 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.


The most normal channels through which TrojanDownloader:Win32/Zegost.B are infused are:

  • By ways of phishing e-mails;
  • As an effect of individual winding up on a source that organizes a destructive software;

As soon as the Trojan is efficiently injected, it will either cipher the data on the victim’s PC or stop the gadget from operating in an appropriate way – while also placing a ransom note that points out the need for the sufferers to effect the payment for the purpose of decrypting the files or restoring the documents system back to the preliminary condition. In many circumstances, the ransom note will come up when the customer restarts the COMPUTER after the system has already been damaged.

TrojanDownloader:Win32/Zegost.B circulation channels.

In various edges of the world, TrojanDownloader:Win32/Zegost.B grows by leaps and bounds. However, the ransom money notes and techniques of extorting the ransom money quantity might vary depending upon particular local (regional) setups. The ransom money notes as well as tricks of obtaining the ransom amount may vary depending on certain regional (regional) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In particular locations, the Trojans frequently wrongfully report having actually found some unlicensed applications enabled on the target’s tool. The sharp then demands the customer to pay the ransom money.

    Faulty statements regarding prohibited material.

    In nations where software application piracy is much less prominent, this method is not as effective for the cyber scams. Additionally, the TrojanDownloader:Win32/Zegost.B popup alert might falsely assert to be originating from a police organization and also will certainly report having located kid pornography or other unlawful data on the gadget.

    TrojanDownloader:Win32/Zegost.B popup alert may wrongly assert to be acquiring from a legislation enforcement organization as well as will report having located youngster porn or various other prohibited information on the device. The alert will similarly have a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: B2B4443F
md5: 6547246657dacc6340040a9b849506a9
name: 6547246657DACC6340040A9B849506A9.mlw
sha1: 3419e85046bc6306a47f1dee38ab231155891335
sha256: 33cec3513bc471cb691db807c12c0ce78242ea2a699a31a90acb21f3155261df
sha512: e1d14eae5ed31ead91072f555c8d83008ab22d0ad52fe27f75264ebb9869e05064f4cd1cfecd7000d2c349f1e60d4516e10901c3257f2399338f50022a3a9736
ssdeep: 6144:2JL4RVjSe3Ne8khl9GBW5poTmLCwNMm4nSc8T0zttt0QdcED7goLSxzihMnbnGE:2R43D2nABW5yTmi3Y0htt0qnDHarGE
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

CompanyName: HZ
Comments: QQx98dex8f66x8f85x52a9
ProductName: QQx98dex8f66x8f85x52a9
FileDescription: QQx98dex8f66x8f85x52a9
Translation: 0x0804 0x04b0

TrojanDownloader:Win32/Zegost.B also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.Badur.45
Cynet Malicious (score: 100)
CAT-QuickHeal Risktool.Flystudio.16885
Cylance Unsafe
Sangfor Win.Malware.Zusy-6840460-0
CrowdStrike win/malicious_confidence_90% (W)
Alibaba TrojanDownloader:Win32/Zegost.4167aece
Cybereason malicious.046bc6
Baidu Win32.Trojan.FlyStudio.c
Cyren W32/Agent.EW.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/TrojanDownloader.FlyStudio.BD
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Malware.Zusy-6840460-0
NANO-Antivirus Trojan.Win32.Badur.cvymuc
Sophos Troj/HkMain-CB
Comodo TrojWare.Win32.Agent.OSCF@5rs7jr
BitDefenderTheta Gen:NN.ZexaF.34608.Rq0@aarrEkbb
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Microsoft TrojanDownloader:Win32/Zegost.B
GData Win32.Trojan.Agent.XBHJ56
AhnLab-V3 Trojan/Win32.Agent.R116025
Acronis suspicious
McAfee GenericR-CTS!6547246657DA
Malwarebytes Trojan.MalPack.FlyStudio
Rising Ransom.Adduser!1.C371 (CLOUD)
Yandex Trojan.GenAsa!NOsm8ne8Q9g
Ikarus Trojan-Downloader.Win32.Genome
Fortinet W32/FlyStudio.BD!tr
AVG Win32:Trojan-gen
Qihoo-360 Win32/Heur.Generic.HxQBzBsB

How to remove TrojanDownloader:Win32/Zegost.B 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

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 TrojanDownloader:Win32/Zegost.B 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 TrojanDownloader:Win32/Zegost.B you can always ask me in the comments for getting help.

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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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