MSIL/Kryptik.AEJ

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

What is MSIL/Kryptik.AEJ infection?

In this post you will certainly find concerning the definition of MSIL/Kryptik.AEJ as well as its negative influence on your computer system. Such ransomware are a kind of malware that is clarified by online frauds to demand paying the ransom money by a victim.

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In the majority of the situations, MSIL/Kryptik.AEJ infection will instruct its victims to launch funds move for the objective of neutralizing the changes that the Trojan infection has actually introduced to the target’s tool.

MSIL/Kryptik.AEJ Summary

These alterations can be as adheres to:

  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • 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
  • Likely virus infection of existing system binary;
  • Creates a copy of itself;
  • Ciphering the papers found on the victim’s hard disk drive — so the victim can no more use the information;
  • Preventing regular access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
momhat.no-ip.bizTrojan-Ransom.Win32.Blocker.ladl

MSIL/Kryptik.AEJ

The most common channels where MSIL/Kryptik.AEJ are infused are:

  • By ways of phishing emails;
  • As a consequence of customer ending up on a source that hosts a harmful software;

As quickly as the Trojan is successfully infused, it will certainly either cipher the information on the target’s computer or avoid the tool from functioning in an appropriate fashion – while additionally positioning a ransom money note that mentions the need for the targets to impact the settlement for the objective of decrypting the papers or restoring the data system back to the initial problem. In most circumstances, the ransom note will certainly come up when the customer restarts the PC after the system has actually currently been harmed.

MSIL/Kryptik.AEJ distribution channels.

In various corners of the globe, MSIL/Kryptik.AEJ grows by leaps and also bounds. However, the ransom notes as well as tricks of extorting the ransom money amount may differ depending on specific regional (regional) setups. The ransom money notes and techniques of extorting the ransom amount may vary depending on particular neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software application.

    In certain areas, the Trojans usually wrongfully report having discovered some unlicensed applications made it possible for on the sufferer’s gadget. The alert after that requires the user to pay the ransom.

    Faulty declarations about illegal material.

    In nations where software application piracy is less prominent, this technique is not as reliable for the cyber fraudulences. Additionally, the MSIL/Kryptik.AEJ popup alert may wrongly assert to be stemming from a law enforcement institution as well as will certainly report having located youngster pornography or various other prohibited data on the tool.

    MSIL/Kryptik.AEJ popup alert may incorrectly assert to be obtaining from a regulation enforcement establishment and also will certainly report having situated child pornography or various other prohibited data on the tool. The alert will in a similar way have a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: AA0A7CB3
md5: 29a31b667d4f12e1176958ab1bf69839
name: 29A31B667D4F12E1176958AB1BF69839.mlw
sha1: 37189786c20f5bd66b9ab9d8f256b46addbbda00
sha256: a966c2aab18823523b5e3ece9d299b4e0df2f8d5953155e07cc6b847bd8422ab
sha512: fb2cb292096ffd6197656d47b21c3f700134d3d4ad66636b15b5248cb467e86ddc2da018b645b78d69dcb5b7e35f2800372748a9fa825ba0e07d0d0c065605a9
ssdeep: 6144:qV/voEmkmzhopohpriEc4e0r0G4L34NGXAvpNX4CigU:qVHopNi14hM30T4L
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

MSIL/Kryptik.AEJ also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusRiskware ( 0040eff71 )
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Siggen.27548
CynetMalicious (score: 99)
ALYacGen:Variant.Bulz.165988
CylanceUnsafe
SangforTrojan.Win32.Save.a
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.67d4f1
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/Kryptik.AEJ
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Blocker.ladl
BitDefenderGen:Variant.Bulz.165988
NANO-AntivirusTrojan.Win32.Blocker.fblmty
MicroWorld-eScanGen:Variant.Bulz.165988
TencentWin32.Trojan.Blocker.Htcl
Ad-AwareGen:Variant.Bulz.165988
SophosMal/Generic-R
ComodoMalware@#3nu76em3mpc8f
BitDefenderThetaGen:NN.ZemsilF.34738.zm0@a0P@mWg
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionGeneric.dsu
FireEyeGeneric.mg.29a31b667d4f12e1
EmsisoftGen:Variant.Bulz.165988 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Blocker.ikp
AviraTR/Dropper.MSIL.Gen
Antiy-AVLTrojan/Generic.ASMalwS.260D58F
MicrosoftTrojan:Win32/Occamy.C
AegisLabTrojan.Win32.Blocker.j!c
ZoneAlarmTrojan-Ransom.Win32.Blocker.ladl
GDataGen:Variant.Bulz.165988
McAfeeGeneric.dsu
MAXmalware (ai score=99)
PandaTrj/GdSda.A
RisingTrojan.DynCode!1.9F2C (CLASSIC)
YandexTrojan.Blocker!PnSvpQVPrtQ
IkarusTrojan.MSIL.Crypt
MaxSecureTrojan.Malware.300983.susgen
FortinetMSIL/Kryptik.AEJ!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove MSIL/Kryptik.AEJ 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 MSIL/Kryptik.AEJ 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove MSIL/Kryptik.AEJ 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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