MSIL/Kryptik.AHA

What is MSIL/Kryptik.AHA infection?

In this post you will certainly discover concerning the definition of MSIL/Kryptik.AHA and its adverse impact on your computer. Such ransomware are a form of malware that is clarified by on the internet fraudulences to require paying the ransom money by a victim.

Most of the situations, MSIL/Kryptik.AHA infection will instruct its victims to initiate funds move for the purpose of neutralizing the amendments that the Trojan infection has introduced to the sufferer’s device.

MSIL/Kryptik.AHA Summary

These alterations can be as adheres to:

  • 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.
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Sniffs keystrokes;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a copy of itself;
  • Ciphering the files found on the sufferer’s hard disk — so the victim can no longer make use of the data;
  • Preventing regular accessibility to the victim’s workstation;
Similar behavior
Related domains
z.whorecord.xyz Ransom:Win32/Blocker.09f52606
a.tomx.xyz Ransom:Win32/Blocker.09f52606

MSIL/Kryptik.AHA

One of the most regular channels where MSIL/Kryptik.AHA Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of user ending up on a source that hosts a harmful software application;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the victim’s PC or prevent the gadget from functioning in a correct way – while also positioning a ransom note that discusses the requirement for the victims to effect the settlement for the objective of decrypting the papers or recovering the data system back to the initial condition. In most circumstances, the ransom money note will show up when the customer reboots the COMPUTER after the system has actually already been damaged.

MSIL/Kryptik.AHA distribution channels.

In different corners of the globe, MSIL/Kryptik.AHA grows by leaps and bounds. Nonetheless, the ransom notes and also techniques of obtaining the ransom money amount might differ depending upon certain local (local) setups. The ransom notes and techniques of obtaining the ransom money amount may vary depending on particular neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software.

    In specific locations, the Trojans frequently wrongfully report having actually identified some unlicensed applications allowed on the sufferer’s gadget. The alert then demands the individual to pay the ransom money.

    Faulty declarations concerning unlawful content.

    In countries where software application piracy is less prominent, this approach is not as effective for the cyber fraudulences. Alternatively, the MSIL/Kryptik.AHA popup alert may falsely claim to be deriving from a police organization and will certainly report having located kid porn or various other prohibited data on the tool.

    MSIL/Kryptik.AHA popup alert may incorrectly declare to be deriving from a law enforcement establishment and also will certainly report having situated child pornography or other prohibited data on the tool. The alert will similarly consist of a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: E4164E66md5: 6eabb73eba74a08c1d48202d887aa9e6name: 6EABB73EBA74A08C1D48202D887AA9E6.mlwsha1: 8d5cbb02c45bae46db2a6e7372eeedfce7c249basha256: a3f5aaeefd56c2b8f3b0dd71955fa11e2c7b312c7271c1624b474f44210eebf2sha512: bda8a3904fcc6daa582fe9aa2d71ae80f9770d6d9c97d24a6a5cfe67a8f0496760e38f60a1acfca81c8a7dcb0471097738ceb593dc01cee815ae5da33fe351a6ssdeep: 1536:zqom/tf0rfsWscQYh6FvTNHN5CPEkQZG0fXPzg/7HMrq2fo8A:MtfE9QYhsvTNt80ZG0fXPEzsrqYAtype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0LegalCopyright: AAaYVV6WrFd1Assembly Version: 4.2.4.5InternalName: Love Song.exeFileVersion: 4.1.5.x200b0CompanyName: AAaYVV6WrFd1LegalTrademarks: GFa754(6uMdxa7Comments: GFa754(6uMdxa7ProductName: GFa754(6uMdxa7ProductVersion: 4.1.5.x200b0FileDescription: AAaYVV6WrFd1OriginalFilename: Love Song.exe

MSIL/Kryptik.AHA also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0055e3981 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader16.1410
Cynet Malicious (score: 100)
ALYac Gen:Variant.Razy.9594
Cylance Unsafe
Zillya Trojan.Blocker.Win32.33080
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Blocker.09f52606
K7GW Trojan ( 0055e3981 )
Cybereason malicious.eba74a
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.AHA
APEX Malicious
Avast MSIL:GenMalicious-KT [Trj]
ClamAV Win.Dropper.Formbook-9085597-0
Kaspersky Trojan-Ransom.Win32.Blocker.iabe
BitDefender Gen:Variant.Razy.9594
NANO-Antivirus Trojan.Win32.Kryptik.dfivna
MicroWorld-eScan Gen:Variant.Razy.9594
Tencent Win32.Trojan.Blocker.Wsul
Ad-Aware Gen:Variant.Razy.9594
Sophos ML/PE-A + Mal/MSIL-SH
Comodo Malware@#2zngbmbdkkb03
BitDefenderTheta Gen:NN.ZemsilF.34692.km0@aCb2jQe
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Trojan-FDWX!6EABB73EBA74
FireEye Generic.mg.6eabb73eba74a08c
Emsisoft Gen:Variant.Razy.9594 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Blocker.bec
Avira TR/Dropper.MSIL.Gen
Antiy-AVL Trojan/Generic.ASMalwS.C03312
Microsoft Trojan:Win32/Occamy.C
AegisLab Trojan.Win32.Generic.mCej
ZoneAlarm Trojan-Ransom.Win32.Blocker.iabe
GData Gen:Variant.Razy.9594
AhnLab-V3 Trojan/Win32.Crypt.C116983
McAfee Trojan-FDWX!6EABB73EBA74
MAX malware (ai score=88)
VBA32 TrojanRansom.Blocker
Malwarebytes Trojan.MalPack.MSIL
Panda Trj/CI.A
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.Blocker!/grGli7okF4
Ikarus MSIL
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Generic.ADH!tr
AVG MSIL:GenMalicious-KT [Trj]
Paloalto generic.ml

How to remove MSIL/Kryptik.AHA 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove MSIL/Kryptik.AHA you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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