What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:MSIL/Crylocker.PAA!MTB malware detection usually means that your computer is in big danger. This virus can correctly be identified as ransomware – virus which ciphers your files and forces you to pay for their decryption. Stopping it requires some unusual steps that must be done as soon as possible.
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Ransom:MSIL/Crylocker.PAA!MTB detection is a malware detection you can spectate in your system. It often appears after the provoking actions on your computer – opening the untrustworthy email, clicking the advertisement in the Internet or installing the program from suspicious sources. From the instance it shows up, you have a short time to act until it begins its malicious activity. And be sure – it is far better not to await these destructive actions.

What is Ransom:MSIL/Crylocker.PAA!MTB virus?

Ransom:MSIL/Crylocker.PAA!MTB is ransomware-type malware. It searches for the documents on your disk drive, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this virus also does a ton of damage to your system. It alters the networking settings in order to stop you from looking for the elimination manuals or downloading the anti-malware program. In some cases, Ransom:MSIL/Crylocker.PAA!MTB can even stop the setup of anti-malware programs.

Ransom:MSIL/Crylocker.PAA!MTB Summary

Summarizingly, Ransom:MSIL/Crylocker.PAA!MTB malware actions in the infected system are next:

  • Dynamic (imported) function loading detected;
  • CAPE extracted potentially suspicious content;
  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • Ciphering the documents kept on the target’s drives — so the victim cannot check these documents;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a major problem for the last 4 years. It is difficult to picture a more dangerous virus for both individuals and companies. The algorithms used in Ransom:MSIL/Crylocker.PAA!MTB (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy actually exists, and possibly will exist. However, that malware does not do all these bad things without delay – it may require up to several hours to cipher all of your documents. Therefore, seeing the Ransom:MSIL/Crylocker.PAA!MTB detection is a clear signal that you have to start the removal process.

Where did I get the Ransom:MSIL/Crylocker.PAA!MTB?

Routine methods of Ransom:MSIL/Crylocker.PAA!MTB distribution are usual for all other ransomware examples. Those are one-day landing websites where users are offered to download the free app, so-called bait emails and hacktools. Bait emails are a pretty modern strategy in malware distribution – you receive the e-mail that imitates some standard notifications about shippings or bank service conditions updates. Within the e-mail, there is an infected MS Office file, or a link which leads to the exploit landing site.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks pretty simple, but still requires tons of awareness. Malware can hide in different spots, and it is far better to prevent it even before it goes into your computer than to depend on an anti-malware program. General cybersecurity awareness is just an important item in the modern-day world, even if your interaction with a PC stays on YouTube videos. That can keep you a lot of time and money which you would spend while looking for a fix guide.

Ransom:MSIL/Crylocker.PAA!MTB malware technical details

File Info:

name: C1B753E693A246A447A0.mlw
path: /opt/CAPEv2/storage/binaries/49248ccb05b240860bca77b14d11761f46351c82a5aab48ec9b6702dad7bf15f
crc32: DAFC5EBF
md5: c1b753e693a246a447a0d8c2973d267b
sha1: ab29408679f569598a0707e6eae6f6854ef0399f
sha256: 49248ccb05b240860bca77b14d11761f46351c82a5aab48ec9b6702dad7bf15f
sha512: 1bd86cf18a5bd896355990e1007e4d8d8b08df7f35b2e61f7355ef8d3135c287ecf0868204312a0e2637e15e69f69e7e7646c4cbc8970ac01ca39e1fb899f197
ssdeep: 3072:i+8cpoW8cpW8cpXKtac8cpt8cpn8cp+9h73YEXDtVxD1DtiLpTpR/5QF:izNSq7fpyRG
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T12355FE64BEAE50D8D8E1D6381238E17165EE8D08BB93771AD7E5BE633E31EB1050580F
sha3_384: 9820d7e50d523283be13c389986d1b0f5584aea9c04fbde89d27a7d9a87549b09f1280f30bf20203ac8e57bbc0f224d2
ep_bytes: ff250020400000000000000000000000
timestamp: 2021-10-01 02:50:33

Version Info:

Translation: 0x0000 0x04b0
CompanyName: Microsoft
FileDescription: @CryLocker@.exe
InternalName: @Crylocker@.exe.exe
LegalCopyright: Copyright © Microsoft 2021
OriginalFilename: @Crylocker@.exe.exe
ProductName: @CryLocker@.exe
Assembly Version:

Ransom:MSIL/Crylocker.PAA!MTB also known as:

Elasticmalicious (high confidence)
K7AntiVirusTrojan ( 00508ebf1 )
K7GWTrojan ( 00508ebf1 )
ESET-NOD32a variant of MSIL/Filecoder.FG
EmsisoftGen:Variant.MSILHeracles.26934 (B)
SentinelOneStatic AI – Suspicious PE
MAXmalware (ai score=81)
CynetMalicious (score: 99)
RisingTrojan.Generic/MSIL@AI.96 (RDM.MSIL:fhRVzRTlpYV98RpAIl9V7w)
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Ransom:MSIL/Crylocker.PAA!MTB?

Ransom:MSIL/Crylocker.PAA!MTB malware is very difficult to remove manually. It puts its documents in several places throughout the disk, and can restore itself from one of the elements. Moreover, a range of alterations in the registry, networking setups and Group Policies are really hard to discover and revert to the initial. It is better to make use of a special app – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the most ideal for malware elimination reasons.

Why GridinSoft Anti-Malware? It is very light-weight and has its detection databases updated just about every hour. Additionally, it does not have such bugs and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware ideal for getting rid of malware of any type.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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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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