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

What is Win32/Kryptik.FJBP infection?

In this article you will certainly find concerning the meaning of Win32/Kryptik.FJBP as well as its unfavorable influence on your computer. Such ransomware are a form of malware that is elaborated by online frauds to demand paying the ransom by a sufferer.

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In the majority of the cases, Win32/Kryptik.FJBP ransomware will certainly instruct its victims to initiate funds transfer for the function of counteracting the modifications that the Trojan infection has introduced to the victim’s gadget.

Win32/Kryptik.FJBP Summary

These adjustments can be as complies with:

  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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!
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the sufferer’s hard disk drive — so the victim can no more use the information;
  • Preventing routine accessibility 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 networks through which Win32/Kryptik.FJBP Trojans are infused are:

  • By methods of phishing emails;
  • As a repercussion of user ending up on a resource that hosts a destructive software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the victim’s computer or prevent the tool from working in an appropriate fashion – while also putting a ransom money note that discusses the need for the sufferers to effect the settlement for the objective of decrypting the papers or bring back the documents system back to the first problem. In a lot of circumstances, the ransom note will certainly show up when the client reboots the PC after the system has actually currently been harmed.

Win32/Kryptik.FJBP distribution networks.

In different corners of the world, Win32/Kryptik.FJBP expands by leaps and bounds. Nevertheless, the ransom money notes and methods of obtaining the ransom money amount might vary relying on certain local (local) settings. The ransom notes as well as techniques of obtaining the ransom money amount may vary depending on certain local (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In certain locations, the Trojans usually wrongfully report having identified some unlicensed applications enabled on the victim’s gadget. The sharp after that demands the individual to pay the ransom.

    Faulty statements concerning unlawful content.

    In countries where software piracy is much less preferred, this approach is not as efficient for the cyber frauds. Conversely, the Win32/Kryptik.FJBP popup alert may falsely claim to be originating from a law enforcement establishment and also will report having located child pornography or other unlawful data on the gadget.

    Win32/Kryptik.FJBP popup alert might falsely declare to be acquiring from a legislation enforcement organization and also will report having situated youngster pornography or other unlawful data on the gadget. The alert will similarly consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 2DD9CE9F
md5: aa83d667976d16be5e53315860d8c610
name: AA83D667976D16BE5E53315860D8C610.mlw
sha1: b23aea9fd60ce91c1f56bad9b37e6cdd2803c155
sha256: 2816210ed65c84cbd69960045d718330a2f5f5ce0ce88babaa88f863e84505c4
sha512: 097ab2d7c748e26c714b07e3140b60840e338919c707d19b2414860ca9d1e3215d8d3bf72359d0d74ffa3e5804345e7ab0eaa5056abc6e1fe3c3c3903d26b6d8
ssdeep: 6144:e63Vu1XlIqhoFXhY4jT/guKncitIP73/3:/waZXK4P+c+A7/
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
LegalCopyright: Copyright xa9 2001-2004 Glen Sawyer
InternalName: MP3GainGUI
FileVersion: 1.02.0005
CompanyName: Snelg Enterprises
ProductName: MP3Gain GUI
ProductVersion: 1.02.0005
FileDescription: MP3Gain GUI
OriginalFilename: MP3GainGUI.exe

Win32/Kryptik.FJBP also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0051e00a1 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Gen:Variant.Zusy.210678
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.1337547
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Ransom:Win32/Crypmod.124b4bff
K7GW Trojan ( 0051e00a1 )
Cybereason malicious.7976d1
Symantec Trojan.Gen.MBT
ESET-NOD32 a variant of Win32/Kryptik.FJBP
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Crypmod.aagj
BitDefender Gen:Variant.Zusy.210678
NANO-Antivirus Trojan.Win32.Kryptik.evfdot
MicroWorld-eScan Gen:Variant.Zusy.210678
Tencent Malware.Win32.Gencirc.11494df4
Ad-Aware Gen:Variant.Zusy.210678
Sophos Mal/Generic-S
Comodo Malware@#2embnvo16v2de
F-Secure Heuristic.HEUR/AGEN.1109543
BitDefenderTheta Gen:NN.ZexaF.34608.oy0@aW!mnZl
VIPRE Trojan.Win32.Generic.pak!cobra
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
Emsisoft Gen:Variant.Zusy.210678 (B)
SentinelOne Static AI – Suspicious PE
Avira HEUR/AGEN.1109543
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Win32.AGeneric
Microsoft Ransom:Win32/Locky
Arcabit Trojan.Zusy.D336F6
ZoneAlarm Trojan-Ransom.Win32.Crypmod.aagj
GData Gen:Variant.Zusy.210678
AhnLab-V3 Trojan/Win32.Yakes.C1658370
McAfee Trojan-FKEO!AA83D667976D
MAX malware (ai score=100)
VBA32 Trojan-Ransom.Locky
Malwarebytes Generic.Malware/Suspicious
Panda Trj/GdSda.A
Rising Ransom.Locky!8.1CD4 (CLOUD)
Yandex Trojan.GenAsa!zoPl1JyTGOA
Ikarus Trojan.Win32.Crypt
Fortinet W32/Generic.FJBP!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.Crypmod.HgIASOUA

How to remove Win32/Kryptik.FJBP ransomware?

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.FJBP 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.FJBP 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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