Win32/Kryptik.GJEV

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

What is Win32/Kryptik.GJEV infection?

In this article you will certainly discover concerning the interpretation of Win32/Kryptik.GJEV and also its adverse impact on your computer. Such ransomware are a kind of malware that is specified by on-line fraudulences to require paying the ransom money by a victim.

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In the majority of the cases, Win32/Kryptik.GJEV ransomware will instruct its sufferers to launch funds transfer for the objective of counteracting the changes that the Trojan infection has presented to the sufferer’s device.

Win32/Kryptik.GJEV Summary

These alterations can be as follows:

  • 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: Danish;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Exhibits possible ransomware file modification behavior;
  • 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.
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Appends a known encryptJJS ransomware file extension to files that have been encrypted;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the sufferer’s hard disk drive — so the sufferer can no more use the information;
  • Preventing routine access to the sufferer’s workstation;

Win32/Kryptik.GJEV

One of the most normal channels through which Win32/Kryptik.GJEV are infused are:

  • By methods of phishing emails;
  • As a consequence of user winding up on a resource that hosts a malicious software program;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the sufferer’s PC or stop the gadget from working in a correct fashion – while additionally positioning a ransom money note that states the need for the sufferers to effect the payment for the function of decrypting the files or recovering the documents system back to the first condition. In most instances, the ransom note will certainly turn up when the client restarts the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.GJEV distribution networks.

In different corners of the globe, Win32/Kryptik.GJEV expands by jumps as well as bounds. However, the ransom notes as well as tricks of extorting the ransom amount might differ depending on certain regional (local) settings. The ransom money notes as well as methods of extorting the ransom quantity may differ depending on specific regional (local) settings.

Ransomware injection

As an example:

    Faulty signals about unlicensed software application.

    In particular areas, the Trojans frequently wrongfully report having spotted some unlicensed applications enabled on the sufferer’s device. The sharp after that requires the individual to pay the ransom.

    Faulty statements about unlawful content.

    In nations where software piracy is less preferred, this method is not as effective for the cyber fraudulences. Alternatively, the Win32/Kryptik.GJEV popup alert may falsely assert to be originating from a police organization as well as will certainly report having located kid pornography or other unlawful data on the device.

    Win32/Kryptik.GJEV popup alert might wrongly declare to be acquiring from a legislation enforcement organization and also will report having located child porn or various other illegal data on the tool. The alert will similarly include a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 2BB4CD77
md5: 81d3ba031c12242f313768b71b797890
name: 81D3BA031C12242F313768B71B797890.mlw
sha1: e9b9a6101a0a98e47391a1d82d2cc6fc39027d84
sha256: 7e354bb065d906da5826459bf54e1081b4cd35c141353d2ef6e994ad30c2f141
sha512: 0a1c8923203dbb110076a651db656d92de569667e0d3575f50722e6499a970d4ee16c4eeccd7ae078ba35a5c8e4248b6ae3853d31bcc6099a8cb850387e5f446
ssdeep: 1536:Rb3PnslobquQmA23/poY7LD1pKfifZvpGGTZzeVE3UHaLw+NlEHo4cefimUK7:BuofRAcNnD1dDeVE3UHZ0EI49f
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GJEV also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusRiskware ( 0040eff71 )
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Stealer.23680
CAT-QuickHealTrojan.Chapak.ZZ5
McAfeePacked-FJI!81D3BA031C12
CylanceUnsafe
ZillyaTrojan.GenericKD.Win32.156679
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.31c122
CyrenW32/Panda.A.gen!Eldorado
ESET-NOD32a variant of Win32/Kryptik.GJEV
APEXMalicious
AvastWin32:Malware-gen
CynetMalicious (score: 100)
KasperskyHEUR:Trojan.Win32.Generic
AlibabaTrojan:Any/UnSafe.a
NANO-AntivirusTrojan.Win32.Kryptik.ffywab
MicroWorld-eScanTrojan.Mint.Jamg.C
TencentMalware.Win32.Gencirc.10b3bb24
SophosMal/Generic-S
ComodoTrojWare.Win32.Crypt.CM@7rddns
BitDefenderThetaGen:NN.ZexaF.34628.kuW@aSbYGTcG
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPGANDCRAB.SMG2
McAfee-GW-EditionBehavesLike.Win32.Generic.ch
FireEyeGeneric.mg.81d3ba031c12242f
EmsisoftTrojan.Mint.Jamg.C (B)
SentinelOneStatic AI – Malicious PE
WebrootW32.Adware.Gen
AviraHEUR/AGEN.1138680
eGambitUnsafe.AI_Score_99%
Antiy-AVLTrojan[Ransom]/Win32.GandCrypt
ArcabitTrojan.Mint.Jamg.C
AegisLabTrojan.Multi.Generic.4!c
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Mint.Jamg.C
AhnLab-V3Win-Trojan/Gandcrab04.Exp
Acronissuspicious
VBA32BScope.Backdoor.Androm
MAXmalware (ai score=100)
MalwarebytesGeneric.Malware/Suspicious
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_HPGANDCRAB.SMG2
RisingRansom.GandCrypt!8.F33E (CLOUD)
YandexTrojan.Agent!Y4lLIhqcMFc
IkarusTrojan.Win32.Crypt
MaxSecureRansomeware.CRAB.gen
FortinetW32/GenKryptik.DWIE!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360HEUR/QVM10.2.BBC2.Malware.Gen

How to remove Win32/Kryptik.GJEV virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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.GJEV 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.GJEV 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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