What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Ransom:Win32/StopCrypt.PAQ!MTB detection name means that your PC is in big danger. This computer virus can correctly be identified as ransomware – virus which encrypts your files and asks you to pay for their decryption. Deleteing it requires some specific steps that must be done as soon as possible.
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Ransom:Win32/StopCrypt.PAQ!MTB detection is a virus detection you can spectate in your system. It frequently appears after the preliminary actions on your computer – opening the untrustworthy e-mail messages, clicking the advertisement in the Internet or setting up the program from dubious resources. From the second it appears, you have a short time to act until it begins its destructive action. And be sure – it is better not to wait for these malicious actions.

What is Ransom:Win32/StopCrypt.PAQ!MTB virus?

Ransom:Win32/StopCrypt.PAQ!MTB is ransomware-type malware. It looks for the files on your disk drives, ciphers it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this virus additionally does a lot of harm to your system. It changes the networking setups in order to prevent you from reading the elimination guidelines or downloading the antivirus. In rare cases, Ransom:Win32/StopCrypt.PAQ!MTB can also block the launching of anti-malware programs.

Ransom:Win32/StopCrypt.PAQ!MTB Summary

Summarizingly, Ransom:Win32/StopCrypt.PAQ!MTB malware actions in the infected system are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Possible date expiration check, exits too soon after checking local time;
  • Dynamic (imported) function loading detected;
  • Enumerates the modules from a process (may be used to locate base addresses in process injection);
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Serbian;
  • Authenticode signature is invalid;
  • CAPE detected the RedLine malware family;
  • Ciphering the files kept on the target’s disks — so the victim cannot check these files;
  • Blocking the launching of .exe files of anti-malware programs
  • Blocking the launching of installation files of anti-malware programs

Ransomware has been a major problem for the last 4 years. It is difficult to picture a more harmful virus for both individuals and corporations. The algorithms used in Ransom:Win32/StopCrypt.PAQ!MTB (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have more time than our galaxy already exists, and possibly will exist. But that virus does not do all these terrible things instantly – it can take up to a few hours to cipher all of your documents. Hence, seeing the Ransom:Win32/StopCrypt.PAQ!MTB detection is a clear signal that you need to start the clearing procedure.

Where did I get the Ransom:Win32/StopCrypt.PAQ!MTB?

Standard ways of Ransom:Win32/StopCrypt.PAQ!MTB distribution are typical for all other ransomware examples. Those are one-day landing sites where victims are offered to download and install the free program, so-called bait e-mails and hacktools. Bait e-mails are a pretty new method in malware distribution – you get the e-mail that simulates some routine notifications about shipments or bank service conditions modifications. Within the e-mail, there is a malicious MS Office file, or a web link which leads to the exploit landing page.

Malicious email spam

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

Preventing it looks fairly uncomplicated, however, still demands a lot of focus. Malware can hide in various places, and it is better to prevent it even before it gets into your PC than to trust in an anti-malware program. Essential cybersecurity awareness is just an important thing in the modern world, even if your interaction with a computer remains on YouTube videos. That may save you a great deal of time and money which you would certainly spend while trying to find a solution.

Ransom:Win32/StopCrypt.PAQ!MTB malware technical details

File Info:

name: 39009978943EBAD87B5A.mlw
path: /opt/CAPEv2/storage/binaries/653fb57e3fbdbf7c33ddc71ceda58dcf23cd61e38ff5f848250893b641e24920
crc32: 286F8B78
md5: 39009978943ebad87b5af87be59bbf19
sha1: 6ad2f5ab9734c8b41ad057d5611ec3eb56168b2c
sha256: 653fb57e3fbdbf7c33ddc71ceda58dcf23cd61e38ff5f848250893b641e24920
sha512: 1350976b5bb3ad9e0ee07f068fa6f150d0228736913c33ae35f4c222cc69962822a770a3f99a39f8c9d282f26e3bb8e46e7b83e6ad1bc439c415c8c369ac2216
ssdeep: 6144:tqnQJL/s+pj7v8ZYOKdcG4RSNV3U84V3owLgAzi:yYrs+psXKdP4IN1UzXLgQi
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T18384F1313A90D431C0972A354916CFA05ABDBC3628B45A8777A92B6F6F323C1567B31F
sha3_384: 6ecb219f019d194a30a133c1e9378ee413049c78a985614997f02d3fd43b7429f255441e3d3f64f87765dba7c3fdf92d
ep_bytes: e815500000e979feffff832544a14500
timestamp: 2021-06-24 03:00:57

Version Info:

InternationalName: bomgvioci.iwa
Copyright: Copyrighz (C) 2021, fudkorta
Translations: 0x0121 0x03ca

Ransom:Win32/StopCrypt.PAQ!MTB also known as:

Elasticmalicious (high confidence)
K7AntiVirusTrojan ( 003e58dd1 )
K7GWTrojan ( 0058d45d1 )
CrowdStrikewin/malicious_confidence_100% (W)
ESET-NOD32a variant of Win32/Kryptik.HOAX
AvastWin32:AceCrypter-B [Cryp]
SophosML/PE-A + Mal/Agent-AWV
EmsisoftTrojan.Crypt (A)
MAXmalware (ai score=80)
CynetMalicious (score: 100)
RisingRansom.Stop!8.10810 (CLOUD)
SentinelOneStatic AI – Malicious PE
AVGWin32:AceCrypter-B [Cryp]

How to remove Ransom:Win32/StopCrypt.PAQ!MTB?

Ransom:Win32/StopCrypt.PAQ!MTB malware is extremely hard to delete by hand. It stores its documents in several locations throughout the disk, and can get back itself from one of the parts. Additionally, a number of alterations in the windows registry, networking configurations and also Group Policies are quite hard to discover and return to the initial. It is far better to make use of a specific program – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the most ideal for virus removal goals.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its detection databases updated just about every hour. Moreover, it does not have such bugs and exploits as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware ideal for eliminating malware of any kind.

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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