Win32/Kryptik.AHST

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

What is Win32/Kryptik.AHST infection?

In this post you will find regarding the meaning of Win32/Kryptik.AHST as well as its adverse effect on your computer system. Such ransomware are a kind of malware that is elaborated by on-line frauds to require paying the ransom by a victim.

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Most of the cases, Win32/Kryptik.AHST ransomware will certainly instruct its victims to launch funds transfer for the function of reducing the effects of the modifications that the Trojan infection has presented to the target’s device.

Win32/Kryptik.AHST Summary

These modifications 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Unconventionial language used in binary resources: Russian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the sufferer’s disk drive — so the sufferer can no more utilize the information;
  • Preventing regular access to the sufferer’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.AHST

One of the most regular channels whereby Win32/Kryptik.AHST Ransomware are infused are:

  • By ways of phishing e-mails;
  • As a consequence of individual winding up on a resource that holds a destructive software;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s computer or avoid the device from working in a proper fashion – while also placing a ransom money note that discusses the need for the victims to impact the repayment for the objective of decrypting the records or bring back the documents system back to the initial condition. In most instances, the ransom note will certainly turn up when the customer reboots the PC after the system has currently been damaged.

Win32/Kryptik.AHST circulation channels.

In various edges of the globe, Win32/Kryptik.AHST grows by jumps and also bounds. Nonetheless, the ransom money notes and techniques of obtaining the ransom money quantity may vary relying on certain regional (local) settings. The ransom notes and also tricks of obtaining the ransom quantity might vary depending on certain regional (regional) setups.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software program.

    In particular areas, the Trojans often wrongfully report having actually discovered some unlicensed applications enabled on the target’s device. The sharp after that requires the customer to pay the ransom.

    Faulty statements regarding unlawful content.

    In countries where software application piracy is much less preferred, this technique is not as reliable for the cyber frauds. Conversely, the Win32/Kryptik.AHST popup alert might incorrectly declare to be stemming from a law enforcement institution and also will certainly report having situated youngster pornography or various other unlawful data on the tool.

    Win32/Kryptik.AHST popup alert might falsely claim to be acquiring from a law enforcement organization and also will report having located kid porn or various other unlawful information on the gadget. The alert will likewise include a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 71FE181E
md5: a3401a9b398179ccc63cb6a4186ac7cc
name: A3401A9B398179CCC63CB6A4186AC7CC.mlw
sha1: ea27be3c0d83a34c6b8f0753d041e61fbd216af2
sha256: aa7e7add5d697b40c9bf0e9d08648c8af99de1c2b68f03e1d1dd032c082d5699
sha512: 27673b44d00137e96733a7e48ba265ed5628ce25dc826c54460b8b92da79e79c6e03de965ed64cd13856239b43cd1c3a509049bcf7e54c0a857834111aabd1f7
ssdeep: 3072:Bml5zkgQK5bXUccVsuGuGEMhNzkECINQv400B5421d1Nnh2aPvI3c2:wl5oQEccTtGEAgECsQh0BR1d172aPb2
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.AHST also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 003b48281 )
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Panda.2005
CynetMalicious (score: 100)
ALYacTrojan.Ransom.Cerber.1
CylanceUnsafe
ZillyaTrojan.Zbot.Win32.98823
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
K7GWTrojan ( 003b48281 )
Cybereasonmalicious.b39817
CyrenW32/Zbot.FF.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.AHST
APEXMalicious
AvastWin32:Susn-AR [Trj]
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Ransom.Cerber.1
NANO-AntivirusVirus.Win32.Gen.ccmw
MicroWorld-eScanTrojan.Ransom.Cerber.1
Ad-AwareTrojan.Ransom.Cerber.1
SophosMal/Generic-S
BitDefenderThetaGen:NN.ZexaF.34738.jqX@a476smcc
VIPRETrojan.Win32.Encpk.aex (v)
McAfee-GW-EditionBehavesLike.Win32.ZBot.cc
FireEyeGeneric.mg.a3401a9b398179cc
EmsisoftTrojan.Ransom.Cerber.1 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojanSpy.Zbot.bumg
WebrootW32.Malware.Gen
AviraTR/Crypt.XPACK.Gen7
eGambitUnsafe.AI_Score_74%
Antiy-AVLTrojan/Generic.ASMalwS.11303C
MicrosoftPWS:Win32/Zbot!CI
GDataTrojan.Ransom.Cerber.1
TACHYONTrojan-Spy/W32.ZBot.154624.BE
AhnLab-V3Spyware/Win32.Zbot.R31889
Acronissuspicious
McAfeePWS-Zbot.gen.afv
MAXmalware (ai score=100)
VBA32TrojanSpy.Zbot
PandaTrj/Pacrypt.AD
RisingMalware.Heuristic!ET#98% (RDMK:cmRtazojPINXdPqggWW3ixlYInPw)
YandexTrojanSpy.Zbot!oyv+uBcAM/4
IkarusTrojan-Spy.Win32.Zbot
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Zbot.ASJ!tr
AVGWin32:Susn-AR [Trj]
Paloaltogeneric.ml

How to remove Win32/Kryptik.AHST 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.AHST 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.AHST 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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