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

What is Backdoor:Win32/Kelihos.B infection?

In this short article you will discover concerning the interpretation of Backdoor:Win32/Kelihos.B and its adverse effect on your computer system. Such ransomware are a form of malware that is specified by online scams to require paying the ransom money by a target.

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Most of the situations, Backdoor:Win32/Kelihos.B virus will certainly instruct its victims to initiate funds move for the objective of reducing the effects of the modifications that the Trojan infection has introduced to the target’s gadget.

Backdoor:Win32/Kelihos.B Summary

These adjustments can be as follows:

  • Ciphering the records located on the target’s hard disk drive — so the victim can no more make use of the data;
  • Preventing regular access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


One of the most normal channels whereby Backdoor:Win32/Kelihos.B Ransomware are infused are:

  • By means of phishing e-mails;
  • As a consequence of user winding up on a source that hosts a harmful software program;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s computer or avoid the tool from functioning in an appropriate fashion – while also positioning a ransom note that states the demand for the targets to impact the payment for the objective of decrypting the documents or bring back the documents system back to the initial problem. In most instances, the ransom note will turn up when the client restarts the PC after the system has already been damaged.

Backdoor:Win32/Kelihos.B distribution networks.

In different corners of the globe, Backdoor:Win32/Kelihos.B expands by leaps as well as bounds. Nevertheless, the ransom money notes and tricks of extorting the ransom money quantity might differ depending upon certain neighborhood (regional) settings. The ransom notes and also tricks of extorting the ransom money quantity might differ depending on certain regional (local) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software program.

    In particular areas, the Trojans often wrongfully report having actually discovered some unlicensed applications enabled on the sufferer’s device. The sharp then demands the individual to pay the ransom.

    Faulty declarations about prohibited content.

    In nations where software application piracy is much less prominent, this method is not as effective for the cyber frauds. Additionally, the Backdoor:Win32/Kelihos.B popup alert might incorrectly assert to be deriving from a police institution and will certainly report having located child pornography or other unlawful data on the tool.

    Backdoor:Win32/Kelihos.B popup alert may wrongly claim to be acquiring from a legislation enforcement institution as well as will report having situated youngster porn or other prohibited data on the tool. The alert will in a similar way contain a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 71D56599
md5: 817889558ad1e45983cff731b6a64dfd
name: 817889558AD1E45983CFF731B6A64DFD.mlw
sha1: c6d55b56a8ccf8396431a529c4ac6fed3ab02af0
sha256: d1016c29e33acc94835e337e5419152ab53418fefbb37a54ceed9a2c61a7b4cb
sha512: db3c40c7f0a756af750eff85c869eefab933d29e38ae27eec1db30e45ddf9d58e63f35f9889e072addbdcf97ee2da5db220fbac6cee881787c0bce4c9aa53161
ssdeep: 24576:tWvySvunDrsRNqvu/d4rd/uYTvrmEyZUtaX3naW8:1PQirx
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2010
InternalName: UIScanner
FileVersion: 13,0,21,1
CompanyName: BitDefender S.R.L.
ProductName: BitDefender 2010
ProductVersion: 13,0,18,344
FileDescription: BitDefender Antivirus Scanner
OriginalFilename: uiscan.exe
Translation: 0x0409 0x04b0

Backdoor:Win32/Kelihos.B also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0026c9311 )
Cynet Malicious (score: 100)
CAT-QuickHeal TrojanRansom.Timer
ALYac Gen:Heur.FKP.1
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Obfuscator.de03912c
K7GW Trojan ( 0026c9311 )
Cybereason malicious.58ad1e
Cyren W32/S-bdcee22a!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.OHM
APEX Malicious
Avast Win32:Mystic
Kaspersky VHO:Trojan-Ransom.Win32.Timer.gen
BitDefender Gen:Heur.FKP.1
NANO-Antivirus Trojan.Win32.Slym.dddne
SUPERAntiSpyware Trojan.Agent/Gen-FakeAV
MicroWorld-eScan Gen:Heur.FKP.1
Tencent Win32.Trojan.Generic.Dyqa
Ad-Aware Gen:Heur.FKP.1
Sophos ML/PE-A + Mal/FakeAV-MR
Comodo Malware@#2xlv7gip6fgrg
BitDefenderTheta Gen:NN.ZexaF.34738.uv0@a8uwCKai
TrendMicro Ransom_Timer.R002C0DFB21
McAfee-GW-Edition FakeAV-SecurityTool.js
Emsisoft Gen:Heur.FKP.1 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Hoax.FlashApp.ahj
Avira TR/Crypt.XPACK.Gen
Antiy-AVL Trojan/Generic.ASMalwS.18E113F
Microsoft Backdoor:Win32/Kelihos.B
Arcabit Trojan.FKP.1
GData Gen:Heur.FKP.1
AhnLab-V3 Trojan/Win.Generic.R425314
Acronis suspicious
McAfee FakeAV-SecurityTool.js
MAX malware (ai score=84)
VBA32 Trojan.ExpProc.014
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_Timer.R002C0DFB21
Rising [email protected] (RDML:IiApZHT/yptf15votfVWPA)
Ikarus Trojan.Win32.Yakes
MaxSecure Trojan.Yakes.dwnc
Fortinet W32/BrowHost.KP!tr
AVG Win32:Mystic

How to remove Backdoor:Win32/Kelihos.B 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/Kelihos.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 Backdoor:Win32/Kelihos.B you can always ask me in the comments for getting help.

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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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