Win32/Kryptik.GKUV

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

What is Win32/Kryptik.GKUV infection?

In this post you will find regarding the meaning of Win32/Kryptik.GKUV as well as its negative effect on your computer system. Such ransomware are a type of malware that is clarified by online fraudulences to demand paying the ransom by a target.

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In the majority of the cases, Win32/Kryptik.GKUV virus will certainly advise its victims to initiate funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has introduced to the target’s tool.

Win32/Kryptik.GKUV Summary

These adjustments 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.
  • Compression (or decompression);
  • 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;
  • 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 records situated on the sufferer’s hard disk — so the target can no more utilize the data;
  • Preventing normal 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.

Win32/Kryptik.GKUV

One of the most common networks whereby Win32/Kryptik.GKUV Ransomware are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a consequence of individual ending up on a source that organizes a destructive software program;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the target’s computer or avoid the gadget from working in a proper manner – while also putting a ransom note that states the need for the sufferers to effect the settlement for the function of decrypting the files or restoring the data system back to the preliminary problem. In most instances, the ransom money note will come up when the customer reboots the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.GKUV circulation channels.

In numerous edges of the world, Win32/Kryptik.GKUV grows by leaps and also bounds. However, the ransom money notes as well as methods of obtaining the ransom money amount may vary depending upon certain local (local) setups. The ransom money notes and also tricks of obtaining the ransom money amount may differ depending on certain local (regional) settings.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software application.

    In particular areas, the Trojans often wrongfully report having found some unlicensed applications made it possible for on the sufferer’s gadget. The alert then demands the individual to pay the ransom money.

    Faulty statements regarding prohibited content.

    In nations where software program piracy is less popular, this method is not as effective for the cyber frauds. Conversely, the Win32/Kryptik.GKUV popup alert may wrongly assert to be originating from a police institution and also will certainly report having situated child pornography or various other prohibited information on the gadget.

    Win32/Kryptik.GKUV popup alert may incorrectly declare to be deriving from a legislation enforcement institution and also will report having situated kid porn or various other unlawful data on the tool. The alert will similarly have a need for the user to pay the ransom.

Technical details

File Info:

crc32: 15F07686
md5: ac63dd86f7646c0f09103a7a51d9e12c
name: AC63DD86F7646C0F09103A7A51D9E12C.mlw
sha1: 34c1b6d3e5e227523f0a84dd982fdf46f35db6bf
sha256: 7b382202994e56ded6af52bc53665a44023c5980af6caa00e61eea907590e889
sha512: 790be64187ee3375bd5485500ec1f27095275e03ce82ea85b717bbdb0c61746bc0febd1434a57d5d7bda416c599ce9247dfa756565dc4f0e51265cae007eb87e
ssdeep: 12288:QQxbIXKKQKtRpNwn2p4sHdXBT1oSWndBUa9Ve1DnrDVu6:QtX9RnnpZZULdB99YD8
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GKUV also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0051015d1 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
ALYacTrojan.Ransom.LockyCrypt
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_60% (D)
AlibabaRansom:Win32/Locky.2803a005
K7GWTrojan ( 0051015d1 )
Cybereasonmalicious.6f7646
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.GKUV
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Locky.achb
BitDefenderGen:Variant.Razy.121499
NANO-AntivirusTrojan.Win32.Locky.evdqqp
MicroWorld-eScanGen:Variant.Razy.121499
TencentWin32.Trojan.Locky.Lohn
Ad-AwareGen:Variant.Razy.121499
SophosMal/Generic-S
ComodoMalware@#3gp9p3o1unq0t
BitDefenderThetaGen:NN.ZexaF.34608.GuW@aKP@5zei
VIPRETrojan.Win32.Generic!BT
TrendMicroMal_MiliCry-1h
McAfee-GW-EditionBehavesLike.Win32.Generic.hh
FireEyeGeneric.mg.ac63dd86f7646c0f
EmsisoftGen:Variant.Razy.121499 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1128819
eGambitUnsafe.AI_Score_100%
MicrosoftRansom:Win32/Locky
ArcabitTrojan.Razy.D1DA9B
AegisLabTrojan.Win32.Generic.4!c
GDataGen:Variant.Razy.121499
Acronissuspicious
McAfeeArtemis!AC63DD86F764
MAXmalware (ai score=99)
PandaTrj/CI.A
TrendMicro-HouseCallMal_MiliCry-1h
RisingRansom.Locky!8.1CD4 (CLOUD)
YandexTrojan.Locky!u4Op0PeN+Uw
IkarusTrojan.Win32.Crypt
FortinetW32/Kryptik.FTJT!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.289

How to remove Win32/Kryptik.GKUV 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.GKUV 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.GKUV 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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