Ransom:Win32/StopCrypt.SA!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:Win32/StopCrypt.SA!MTB detection name usually means that your computer is in big danger. This malware can correctly be identified as ransomware – virus which encrypts your files and forces you to pay for their decryption. Deleteing it requires some specific steps that must be taken as soon as possible.
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Ransom:Win32/StopCrypt.SA!MTB detection is a malware detection you can spectate in your computer. It usually shows up after the preliminary procedures on your PC – opening the dubious email messages, clicking the advertisement in the Internet or installing the program from dubious sources. From the instance it shows up, you have a short time to act until it begins its destructive action. And be sure – it is much better not to await these harmful actions.

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

Ransom:Win32/StopCrypt.SA!MTB is ransomware-type malware. It looks for the files on your computer, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your files inaccessible, this malware also does a ton of damage to your system. It alters the networking settings in order to stop you from checking out the elimination guides or downloading the antivirus. Sometimes, Ransom:Win32/StopCrypt.SA!MTB can even prevent the setup of anti-malware programs.

Ransom:Win32/StopCrypt.SA!MTB Summary

In total, Ransom:Win32/StopCrypt.SA!MTB ransomware activities in the infected system are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Georgian;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (Process Hollowing);
  • Behavioural detection: Injection (inter-process);
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Ciphering the documents located on the target’s drives — so the victim cannot check these documents;
  • Blocking the launching of .exe files of anti-malware programs
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a headache for the last 4 years. It is challenging to realize a more hazardous virus for both individuals and organizations. The algorithms utilized in Ransom:Win32/StopCrypt.SA!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. However, that virus does not do all these bad things without delay – it can require up to several hours to cipher all of your documents. Thus, seeing the Ransom:Win32/StopCrypt.SA!MTB detection is a clear signal that you have to start the elimination process.

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

Common tactics of Ransom:Win32/StopCrypt.SA!MTB distribution are usual for all other ransomware examples. Those are one-day landing web pages where users are offered to download and install the free software, so-called bait emails and hacktools. Bait e-mails are a pretty modern strategy in malware spreading – you receive the e-mail that simulates some regular notifications about deliveries or bank service conditions updates. Inside of the email, there is a corrupted MS Office file, or a web link which opens the exploit landing site.

Malicious email spam

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

Avoiding it looks quite easy, but still needs tons of awareness. Malware can hide in various spots, and it is much better to stop it even before it invades your computer than to trust in an anti-malware program. Simple cybersecurity awareness is just an essential thing in the modern world, even if your interaction with a PC remains on YouTube videos. That can keep you a lot of time and money which you would spend while looking for a fix guide.

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

File Info:

name: 087E2A794CD584EFA0E8.mlw
path: /opt/CAPEv2/storage/binaries/29a2c52d11d3729134e6d15e322b59ea6d65f6129c3ea64cf185db055b4c3640
crc32: B2818A14
md5: 087e2a794cd584efa0e81e94c3b9677e
sha1: 76d563733acd80c8f03630c7a546cecc6737f813
sha256: 29a2c52d11d3729134e6d15e322b59ea6d65f6129c3ea64cf185db055b4c3640
sha512: cb12b945579836059bbbcff4b5f7061df446427313fc181db229b87d463335c72e06bd060280f120aaf71971fed201614c4834067353ba7522ccdf35c60d8d7e
ssdeep: 3072:IJhXkagAt9d/VY7wiL2nqcwtIJ9XpSHT4C9xmBQ3gxgt4eonYJjVT7e:AmID9Y7wiLcDwtwIxgugxQHZTi
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T11774CF01BA92C871C8A20D355434C790EB7FB8721976498F77E43B9E7EB03D19A76326
sha3_384: af63e32e17ea54bc23f915e03f701581ba4eaec1ced8f23035889d09b71edfddd67f5c7d2b6070e05f980b85f1849736
ep_bytes: e877470000e979feffff8325bcc1b802
timestamp: 2021-10-10 05:49:42

Version Info:

FileVersions: 9.1.2.3
Copyright: Copyright (C) 2022, somoklos
ProjectVersion: 74.15.66.25

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

BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
FireEyeGeneric.mg.087e2a794cd584ef
SangforTrojan.Win32.Save.a
Cybereasonmalicious.33acd8
CyrenW32/Ransom.QS.gen!Eldorado
SymantecML.Attribute.HighConfidence
tehtrisGeneric.Malware
APEXMalicious
CynetMalicious (score: 100)
KasperskyVHO:Trojan.Win32.Convagent.gen
AvastDropperX-gen [Drp]
Trapminemalicious.moderate.ml.score
SophosML/PE-A
IkarusTrojan-Spy.MSIL.Agent
MicrosoftRansom:Win32/StopCrypt.SA!MTB
GoogleDetected
Acronissuspicious
CylanceUnsafe
RisingTrojan.Generic@AI.97 (RDML:LyOu5p64wglVzUVD1m7V9Q)
SentinelOneStatic AI – Malicious PE
MaxSecureTrojan.Malware.300983.susgen
AVGDropperX-gen [Drp]
CrowdStrikewin/malicious_confidence_100% (W)

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

Ransom:Win32/StopCrypt.SA!MTB malware is very difficult to eliminate by hand. It stores its files in multiple locations throughout the disk, and can restore itself from one of the parts. Moreover, countless alterations in the windows registry, networking settings and also Group Policies are fairly hard to find and revert to the initial. It is better to use a specific tool – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the most ideal for malware removal purposes.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its detection databases updated nearly every hour. In addition, it does not have such problems and vulnerabilities as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware suitable for clearing away malware of any form.

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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