Written by Robert Bailey

What is Backdoor.Win32.Zegost.mswse infection?

In this article you will certainly discover about the definition of Backdoor.Win32.Zegost.mswse and its negative impact on your computer. Such ransomware are a type of malware that is elaborated by on-line fraudulences to require paying the ransom by a victim.

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Most of the situations, Backdoor.Win32.Zegost.mswse infection will certainly instruct its sufferers to initiate funds move for the purpose of reducing the effects of the amendments that the Trojan infection has introduced to the sufferer’s tool.

Backdoor.Win32.Zegost.mswse Summary

These alterations can be as complies with:

  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to modify browser security settings;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the sufferer’s hard disk — so the sufferer can no longer use the data;
  • Preventing normal accessibility to the victim’s workstation;


The most normal networks through which Backdoor.Win32.Zegost.mswse Ransomware are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of user ending up on a resource that organizes a destructive software application;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s PC or protect against the tool from functioning in a correct fashion – while likewise positioning a ransom note that discusses the requirement for the targets to impact the repayment for the objective of decrypting the records or restoring the file system back to the preliminary problem. In the majority of circumstances, the ransom note will certainly come up when the client reboots the PC after the system has actually already been damaged.

Backdoor.Win32.Zegost.mswse distribution channels.

In different edges of the globe, Backdoor.Win32.Zegost.mswse expands by jumps as well as bounds. However, the ransom money notes and also tricks of obtaining the ransom money amount might vary depending upon certain regional (local) settings. The ransom notes and techniques of obtaining the ransom money amount may differ depending on specific local (local) settings.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software.

    In particular locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications made it possible for on the sufferer’s gadget. The alert then requires the individual to pay the ransom money.

    Faulty declarations regarding unlawful content.

    In nations where software piracy is much less preferred, this method is not as effective for the cyber frauds. Alternatively, the Backdoor.Win32.Zegost.mswse popup alert might falsely declare to be stemming from a police institution as well as will certainly report having located child porn or other unlawful information on the gadget.

    Backdoor.Win32.Zegost.mswse popup alert may falsely assert to be obtaining from a legislation enforcement establishment and also will report having located child pornography or other prohibited data on the gadget. The alert will in a similar way contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: D6676490
md5: 8c19a34b1a19df85ea6df07917320400
name: 8C19A34B1A19DF85EA6DF07917320400.mlw
sha1: 74c757d3fd5429b41bfaf93fcb26bc4d14fa1c23
sha256: aac868ea74b7cfb8cffdcf07257f8967cf44bd8f7eeaf5bf26908c9a69b71c04
sha512: 49ef7348fdc7fddaa0204dbe6e45a3d0d6a409b1580b5b4b1796160b304600b617d35901691abeb316d0731f5ceee466af3fb0673222f363feaa7ff06a33a5ae
ssdeep: 96:3zyRib3/mZVTycQR+oEr2hNn9MYWOF+Q9o/mYKizPtboynzHT:+Ib3ArQRUeNnHWOF+z+YKoP1oynzHT
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Backdoor.Win32.Zegost.mswse also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.Winlock.13755
Cynet Malicious (score: 100)
ALYac Gen:Trojan.Heur.amW@Y!WiXGi
Cylance Unsafe
Zillya Trojan.LockScreen.Win32.8143
Sangfor Ransom.Win32.Tobfy.G
Alibaba Backdoor:Win32/Zegost.cdb38f21
K7GW Trojan ( 004c69531 )
K7AntiVirus Trojan ( 004c69531 )
Cyren W32/Ransom.KVBQ-4409
ESET-NOD32 a variant of Win32/LockScreen.ANX
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
ClamAV Win.Trojan.Agent-397539
Kaspersky Backdoor.Win32.Zegost.mswse
BitDefender Gen:Trojan.Heur.amW@Y!WiXGi
NANO-Antivirus Trojan.Win32.Winlock.bcnewt
ViRobot Trojan.Win32.A.Yakes.7680.B
SUPERAntiSpyware Ransom.Tobfy/Variant
MicroWorld-eScan Gen:Trojan.Heur.amW@Y!WiXGi
Tencent Malware.Win32.Gencirc.10b62c7e
Ad-Aware Gen:Trojan.Heur.amW@Y!WiXGi
Sophos Mal/Generic-R + Troj/Ransom-LC
Comodo TrojWare.Win32.Tobfy.DG@5ru2vn
BitDefenderTheta AI:Packer.D299453C1B
VIPRE Trojan.Win32.Reveton.a (v)
McAfee-GW-Edition Ransom-ABD.gen.e
Emsisoft Gen:Trojan.Heur.amW@Y!WiXGi (B)
Jiangmin Trojan/Yakes.inh
Webroot W32.Mabezat.Gen
Avira TR/Kryptik.76802154
Microsoft Ransom:Win32/Tobfy.G
Arcabit Trojan.Heur.ED168BF
AegisLab Trojan.Win32.Zegost.tnxc
GData Gen:Trojan.Heur.amW@Y!WiXGi
TACHYON Trojan/W32.Small.7680.LJ
AhnLab-V3 Trojan/Win32.Yakes.R100635
McAfee Ransom-ABD.gen.e
MAX malware (ai score=99)
VBA32 Hoax.Foreign
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_FOREIGN_BL1328ED.TOMC
Rising Ransom.Tobfy!8.339 (CLOUD)
Ikarus Trojan.Win32.Tobfy
Fortinet W32/LockScreen.ANX!tr
AVG Win32:TrojanX-gen [Trj]
Qihoo-360 Win32/Backdoor.Zegost.HwcBevkA

How to remove Backdoor.Win32.Zegost.mswse 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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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 Backdoor.Win32.Zegost.mswse 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.Win32.Zegost.mswse 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

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

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