Win32/Kryptik.FMFJ

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

What is Win32/Kryptik.FMFJ infection?

In this article you will certainly discover concerning the definition of Win32/Kryptik.FMFJ as well as its negative impact on your computer. Such ransomware are a kind of malware that is elaborated by on-line frauds to require paying the ransom money by a victim.

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Most of the situations, Win32/Kryptik.FMFJ virus will advise its victims to launch funds move for the purpose of counteracting the changes that the Trojan infection has actually introduced to the sufferer’s tool.

Win32/Kryptik.FMFJ Summary

These alterations 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.
  • Mimics the system’s user agent string for its own requests;
  • A process attempted to delay the analysis task.;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Behavior consistent with a dropper attempting to download the next stage.;
  • Exhibits behavior characteristic of Locky ransomware;
  • Ciphering the documents located on the target’s disk drive — so the sufferer can no more make use of the data;
  • Preventing normal accessibility to the victim’s workstation;

Win32/Kryptik.FMFJ

One of the most common networks through which Win32/Kryptik.FMFJ Trojans are injected are:

  • By methods of phishing emails;
  • As a consequence of customer winding up on a resource that organizes a harmful software;

As quickly as the Trojan is effectively injected, it will either cipher the data on the sufferer’s computer or protect against the gadget from operating in a correct manner – while likewise placing a ransom money note that points out the demand for the targets to effect the settlement for the function of decrypting the documents or recovering the data system back to the initial problem. In the majority of instances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has already been damaged.

Win32/Kryptik.FMFJ circulation networks.

In different corners of the globe, Win32/Kryptik.FMFJ grows by leaps and also bounds. However, the ransom money notes as well as techniques of obtaining the ransom money quantity might vary depending on certain regional (local) settings. The ransom notes and techniques of extorting the ransom money amount might differ depending on certain local (regional) settings.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software program.

    In particular locations, the Trojans typically wrongfully report having spotted some unlicensed applications made it possible for on the victim’s device. The sharp after that demands the customer to pay the ransom money.

    Faulty statements regarding illegal material.

    In countries where software piracy is less preferred, this technique is not as efficient for the cyber frauds. Additionally, the Win32/Kryptik.FMFJ popup alert might wrongly claim to be originating from a police institution as well as will report having situated child porn or other unlawful information on the gadget.

    Win32/Kryptik.FMFJ popup alert may falsely declare to be obtaining from a law enforcement establishment as well as will certainly report having located child porn or other illegal data on the device. The alert will in a similar way contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 649EABC1
md5: b2bef6fcc3a13f4964902a818b8c6765
name: B2BEF6FCC3A13F4964902A818B8C6765.mlw
sha1: 703b1bffb58da8ab83cf4242b4756b962af09aba
sha256: 2b2546f7c3f802f29eb10726f9bfa0eaee1a8f6ed6227886e47b10d965c0751c
sha512: b93cd9659a17d614f15fa3555d55f5c7cf041e947777f357737d048893951c06953cc78867351e2c6105b1bd85f3399002a9d1ba77d09d74441a1c729e748768
ssdeep: 6144:N7PwDKMFbottmTeL3WL/rd5JAWn5cuRiDdGS0x80hjt5jg+Esx7i0TDu9oO:BoDqbXe/rhAW5pgGw0J0TsxuCDGoO
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FMFJ also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
CynetMalicious (score: 85)
ALYacGen:Variant.Jaiko.2750
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_90% (W)
Cybereasonmalicious.cc3a13
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.FMFJ
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Spy.Win32.Zbot.xwgr
BitDefenderGen:Variant.Jaiko.2750
MicroWorld-eScanGen:Variant.Jaiko.2750
Ad-AwareGen:Variant.Jaiko.2750
SophosMal/Generic-S
BitDefenderThetaGen:NN.ZexaF.34608.yqW@ay2T4Jji
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPLOCKY.SME1
McAfee-GW-EditionBehavesLike.Win32.Injector.fh
FireEyeGeneric.mg.b2bef6fcc3a13f49
EmsisoftGen:Variant.Jaiko.2750 (B)
SentinelOneStatic AI – Malicious PE
AviraTR/Crypt.Agent.lnywx
MicrosoftTrojan:Win32/Wacatac.B!ml
ArcabitTrojan.Jaiko.DABE
ZoneAlarmTrojan-Spy.Win32.Zbot.xwgr
GDataGen:Variant.Jaiko.2750
McAfeeArtemis!B2BEF6FCC3A1
MAXmalware (ai score=85)
VBA32BScope.TrojanPSW.Qadars
PandaTrj/CI.A
TrendMicro-HouseCallRansom_HPLOCKY.SME1
RisingMalware.Heuristic!ET#87% (RDMK:cmRtazrivBr7fuax2nm8yQeZZcPN)
IkarusTrojan-Ransom.GandCrab
eGambitUnsafe.AI_Score_96%
FortinetW32/Zbot.FMFJ!tr.ransom
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360HEUR/QVM10.1.DA8C.Malware.Gen

How to remove Win32/Kryptik.FMFJ 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.FMFJ 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.FMFJ you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

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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