Trojan:MSIL/CryptInject.AR!MTB

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

What is Trojan:MSIL/CryptInject.AR!MTB infection?

In this post you will find regarding the definition of Trojan:MSIL/CryptInject.AR!MTB and its negative impact on your computer system. Such ransomware are a kind of malware that is elaborated by on-line scams to demand paying the ransom by a victim.

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Most of the cases, Trojan:MSIL/CryptInject.AR!MTB virus will certainly advise its targets to start funds transfer for the objective of counteracting the modifications that the Trojan infection has actually introduced to the sufferer’s gadget.

Trojan:MSIL/CryptInject.AR!MTB Summary

These alterations can be as complies with:

  • 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • A process created a hidden window;
  • Attempts to mimic the file extension of a PDF document by having ‘pdf’ in the file name.;
  • 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;
  • Executed a process and injected code into it, probably while unpacking;
  • 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.
  • Creates a copy of itself;
  • Interacts with known DarkComet registry keys;
  • Ciphering the records found on the sufferer’s disk drive — so the sufferer can no longer use the data;
  • Preventing routine accessibility 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.
Similar behavior
Related domains
boki.zapto.org Ransom.HiddenTear

Trojan:MSIL/CryptInject.AR!MTB

One of the most regular networks through which Trojan:MSIL/CryptInject.AR!MTB Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of individual ending up on a source that organizes a malicious software application;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s PC or stop the gadget from operating in a proper way – while additionally positioning a ransom money note that mentions the requirement for the victims to effect the settlement for the purpose of decrypting the documents or bring back the documents system back to the preliminary condition. In the majority of instances, the ransom note will certainly turn up when the client reboots the COMPUTER after the system has already been harmed.

Trojan:MSIL/CryptInject.AR!MTB distribution networks.

In different corners of the world, Trojan:MSIL/CryptInject.AR!MTB grows by leaps and bounds. However, the ransom money notes and also tricks of obtaining the ransom quantity may vary relying on particular neighborhood (local) settings. The ransom notes as well as tricks of extorting the ransom money quantity might vary depending on specific regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In certain areas, the Trojans typically wrongfully report having actually discovered some unlicensed applications made it possible for on the target’s device. The sharp then demands the user to pay the ransom.

    Faulty declarations concerning illegal content.

    In nations where software program piracy is less popular, this method is not as effective for the cyber scams. Additionally, the Trojan:MSIL/CryptInject.AR!MTB popup alert might falsely claim to be deriving from a law enforcement organization and will certainly report having situated youngster pornography or other prohibited information on the tool.

    Trojan:MSIL/CryptInject.AR!MTB popup alert might falsely claim to be acquiring from a law enforcement establishment as well as will report having situated child porn or other illegal information on the device. The alert will in a similar way contain a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 63A54CBF
md5: 8c783ee344384ce8f3282675e961c3c0
name: 74556POZ_pdf.exe
sha1: eb699861cb2ec0fdc2fb736c6f4eba93133f2100
sha256: bbc8f1873aefb2518b9675fdda8446a2ba7dc159bab9bfd08b40e19b654ea8bb
sha512: ed6ab8e3d8cc3a6cbbadd944d59f8112d9bb4fba2c73d9d476be4e2a9ab929e4836626e113efb72d184b275ea5c8653494fe6e8834571f0bd89f24b83d913aec
ssdeep: 12288:e8sfHbOivhRekpFPBP5WPU+Vf+ib+YRb2bROw2eQ0pHxwB0hDAwpwdAA:e3TOkjPlWz+YRibETeQ0pHKpPA
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2018 229 Games
Assembly Version: 1.23.0.4
InternalName: NdJkrwDanL.exe
FileVersion: 1.23.0.7
CompanyName: 229 Games ltd
LegalTrademarks:
Comments: AI_Game
ProductName: AI_Game
ProductVersion: 1.23.0.7
FileDescription: AI_Game
OriginalFilename: NdJkrwDanL.exe

Trojan:MSIL/CryptInject.AR!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.34367169
FireEye Generic.mg.8c783ee344384ce8
CAT-QuickHeal TrojanSpy.MSIL
McAfee RDN/Generic.dx
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Multi.Generic.4!c
BitDefender Trojan.GenericKD.34367169
Cybereason malicious.1cb2ec
TrendMicro TrojanSpy.Win32.WACATAC.USXVPHF20
Cyren W32/Trojan.UCCT-6211
Symantec Trojan Horse
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan-Spy.MSIL.Noon.gen
Alibaba TrojanSpy:MSIL/CryptInject.86204ddb
ViRobot Trojan.Win32.Z.Wacatac.767488
Rising Spyware.Noon!8.E7C9 (CLOUD)
Ad-Aware Trojan.GenericKD.34367169
Comodo .UnclassifiedMalware@0
F-Secure Heuristic.HEUR/AGEN.1117414
Invincea heuristic
Sophos Mal/Generic-S
Ikarus Trojan.Inject
Avira HEUR/AGEN.1117414
MAX malware (ai score=82)
Antiy-AVL Trojan/Win32.Generic
Microsoft Trojan:MSIL/CryptInject.AR!MTB
Arcabit Trojan.Generic.D20C66C1
SUPERAntiSpyware Trojan.Agent/Gen-Injector
ZoneAlarm HEUR:Trojan-Spy.MSIL.Noon.gen
GData Trojan.GenericKD.34367169
Cynet Malicious (score: 85)
AhnLab-V3 Trojan/Win32.MSILKrypt.R347895
BitDefenderTheta Gen:NN.ZemsilF.34186.Um0@aKFI7Cp
ALYac Spyware.Noon.gen
VBA32 TScope.Trojan.MSIL
Malwarebytes Ransom.HiddenTear
ESET-NOD32 a variant of MSIL/Kryptik.XJN
TrendMicro-HouseCall TrojanSpy.Win32.WACATAC.USXVPHF20
Tencent Win32.Trojan.Inject.Auto
SentinelOne DFI – Malicious PE
eGambit Unsafe.AI_Score_70%
Fortinet MSIL/Kryptik.XJO!tr
Webroot W32.Trojan.Gen
AVG Win32:TrojanX-gen [Trj]
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_90% (W)
Qihoo-360 Generic/Trojan.Spy.beb

How to remove Trojan:MSIL/CryptInject.AR!MTB ransomware?

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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 Trojan:MSIL/CryptInject.AR!MTB 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 Trojan:MSIL/CryptInject.AR!MTB 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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