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

What is Win32/Kryptik.BEFW infection?

In this article you will certainly find regarding the definition of Win32/Kryptik.BEFW and also its unfavorable influence on your computer. Such ransomware are a kind of malware that is elaborated by on the internet fraudulences to require paying the ransom by a sufferer.

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Most of the instances, Win32/Kryptik.BEFW infection will certainly instruct its targets to launch funds move for the function of counteracting the changes that the Trojan infection has presented to the victim’s gadget.

Win32/Kryptik.BEFW Summary

These adjustments can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Unconventionial language used in binary resources: Russian;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the target’s hard drive — so the sufferer can no longer use the data;
  • Preventing regular accessibility to the sufferer’s workstation;
Similar behavior
Related domains Trojan.Ransomlock.Q!AW Trojan.Ransomlock.Q!AW


The most common networks whereby Win32/Kryptik.BEFW Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of individual ending up on a resource that organizes a malicious software application;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the target’s computer or stop the device from functioning in an appropriate fashion – while also placing a ransom money note that states the demand for the victims to effect the settlement for the objective of decrypting the records or restoring the data system back to the preliminary problem. In most circumstances, the ransom money note will come up when the client reboots the PC after the system has actually currently been damaged.

Win32/Kryptik.BEFW circulation networks.

In numerous edges of the world, Win32/Kryptik.BEFW expands by jumps as well as bounds. Nevertheless, the ransom notes and tricks of extorting the ransom quantity might vary depending on specific local (local) settings. The ransom money notes as well as methods of obtaining the ransom money amount might differ depending on particular neighborhood (local) settings.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software.

    In certain areas, the Trojans frequently wrongfully report having detected some unlicensed applications enabled on the victim’s tool. The sharp after that demands the customer to pay the ransom.

    Faulty declarations about prohibited content.

    In countries where software program piracy is less preferred, this method is not as effective for the cyber frauds. Alternatively, the Win32/Kryptik.BEFW popup alert may falsely assert to be deriving from a law enforcement institution and also will certainly report having located child pornography or other illegal information on the tool.

    Win32/Kryptik.BEFW popup alert might falsely declare to be deriving from a legislation enforcement institution as well as will report having located youngster pornography or various other unlawful information on the tool. The alert will in a similar way contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 64277629
md5: 4637541b608efb009e0c7b95bc7f0e56
name: 4637541B608EFB009E0C7B95BC7F0E56.mlw
sha1: 25c88eb10a5ea46dba8d9908934159e28721d2ad
sha256: 484dce6cccd2425a3cb4da4a1c531fb375d3a312535b2c0ff9adbf5381ced0af
sha512: 54c2f0808dab41e7a19c76628484310e422173f20d8c5776aacce960c44a7248960beb23581f6a2451bc24b75b6dd3ad6046a1b35e4ac06f5f220229af31534d
ssdeep: 3072:8Sc5+bik5Cnc3DT6Hxrc0WpI1sZT0O+AjV0wE3Hlfdj5C:8F+hgcSi0WpISZT0O+yE
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.BEFW also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Riskware ( 0040eff71 )
DrWeb Trojan.Winlock.8128
Cynet Malicious (score: 99)
ALYac Gen:Trojan.Heur3.LPT.jGW@aeoxC!acb
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
K7GW Riskware ( 0040eff71 )
Cybereason malicious.b608ef
Symantec Trojan.Ransomlock.Q!AW
ESET-NOD32 a variant of Win32/Kryptik.BEFW
APEX Malicious
Avast Win32:Crypt-PMS [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Trojan.Heur3.LPT.jGW@aeoxC!acb
NANO-Antivirus Trojan.Win32.RiskGen.caejdi
SUPERAntiSpyware Trojan.Agent/Gen-Lockscreen
MicroWorld-eScan Gen:Trojan.Heur3.LPT.jGW@aeoxC!acb
Tencent Win32.Trojan.Generic.Pbfj
Ad-Aware Gen:Trojan.Heur3.LPT.jGW@aeoxC!acb
Sophos Mal/Generic-S
Comodo Malware@#ixcml17941yv
BitDefenderTheta AI:Packer.B0E5FC0A21
VIPRE Trojan.Win32.Fakeav.qvsm (v)
McAfee-GW-Edition Ransom-FCLP!4637541B608E
Emsisoft Gen:Trojan.Heur3.LPT.jGW@aeoxC!acb (B)
Avira HEUR/AGEN.1128747
eGambit Unsafe.AI_Score_98%
Antiy-AVL Trojan/Generic.ASMalwS.2BD4EF
Kingsoft Heur.SSC.2684289.1216.(kcloud)
Microsoft Ransom:Win32/Urausy.C
Arcabit Trojan.Heur3.LPT.E13ADA
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Trojan.Heur3.LPT.jGW@aeoxC!acb
TACHYON Trojan/W32.Foreign.150528.C
AhnLab-V3 Trojan/Win32.Ransom.R73983
McAfee Ransom-FCLP!4637541B608E
MAX malware (ai score=100)
VBA32 OScope.Malware-Cryptor.Hlux
Panda Trj/Dtcontx.F
TrendMicro-HouseCall TROJ_RANSOM.SM04
Rising [email protected] (RDML:PM+YLe2bHyge0e8EfCPmvw)
Yandex Trojan.GenAsa!VcjQVClSutQ
Ikarus Trojan.Win32.Urausy
Fortinet W32/Foreign.EFDG!tr
AVG Win32:Crypt-PMS [Trj]

How to remove Win32/Kryptik.BEFW 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 Win32/Kryptik.BEFW 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 Win32/Kryptik.BEFW 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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