What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:Win32/StopCrypt.SAK!MTB malware detection usually means that your PC is in big danger. This virus can correctly be identified as ransomware – virus which encrypts your files and forces you to pay for their decryption. Deleteing it requires some peculiar steps that must be taken as soon as possible.
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Ransom:Win32/StopCrypt.SAK!MTB detection is a virus detection you can spectate in your computer. It frequently shows up after the preliminary actions on your PC – opening the suspicious email messages, clicking the banner in the Web or installing the program from unreliable sources. From the second it appears, you have a short time to do something about it until it begins its malicious action. And be sure – it is much better not to wait for these malicious effects.

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

Ransom:Win32/StopCrypt.SAK!MTB is ransomware-type malware. It looks for the files on your disks, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your files locked, this virus also does a ton of harm to your system. It changes the networking settings in order to avoid you from checking out the removal guides or downloading the antivirus. Sometimes, Ransom:Win32/StopCrypt.SAK!MTB can additionally block the launching of anti-malware programs.

Ransom:Win32/StopCrypt.SAK!MTB Summary

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

  • Sample contains Overlay data;
  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • Anomalous binary characteristics;
  • Encrypting the documents kept on the victim’s disks — so the victim cannot open these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of security tools

Ransomware has been a major problem for the last 4 years. It is hard to picture a more damaging virus for both individuals and corporations. The algorithms used in Ransom:Win32/StopCrypt.SAK!MTB (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot 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 take up to several hours to cipher all of your documents. Hence, seeing the Ransom:Win32/StopCrypt.SAK!MTB detection is a clear signal that you need to start the removal process.

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

Typical tactics of Ransom:Win32/StopCrypt.SAK!MTB spreading are standard for all other ransomware variants. Those are one-day landing websites where users are offered to download and install the free software, so-called bait emails and hacktools. Bait emails are a pretty new strategy in malware distribution – you get the email that simulates some regular notifications about shipments or bank service conditions changes. Inside of the email, there is an infected MS Office file, or a link which opens the exploit landing page.

Malicious email spam

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

Preventing it looks fairly easy, however, still requires tons of attention. Malware can hide in different places, and it is much better to stop it even before it invades your PC than to rely on an anti-malware program. Common cybersecurity knowledge is just an important thing in the modern-day world, even if your interaction with a PC stays on YouTube videos. That can keep you a great deal of time and money which you would certainly spend while trying to find a fix guide.

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

File Info:

name: 1EF3B2700826BF932A3C.mlw
path: /opt/CAPEv2/storage/binaries/c835934b46665ea57e33cb8d69a18b703dc08aaa3526fd2e8a5516a70e156a60
crc32: E8A646F9
md5: 1ef3b2700826bf932a3c0a921c283aff
sha1: 3896313e3a024184410e7d913bb81e3717f95188
sha256: c835934b46665ea57e33cb8d69a18b703dc08aaa3526fd2e8a5516a70e156a60
sha512: c2747871f074b68e2b8a17fe70b47bf60473de389ff358cad67470758ef902c61912ae02b55d794d5e1c2f372c7c7eec1f6b2a1c4acb80e96ed718367ef115de
ssdeep: 1536:Q0gbBy+kUDb2UQPyN4LFU8FUpXGzjqkb4EjPe0Bx2J9P+G32/:QR0YoyCLzFDiAkT32/
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T161739E217980C072C58A25715478DBA65FBAA43217358D8B7BB52BBF4F307E2527A30B
sha3_384: c4996cad8b5ec6feeab884623e0c0cca4896b339eb9d95ea79dc0f170d9adc470dff1513a61664feea5ef6a3feec02d3
ep_bytes: e801400000e979feffff83252404b802
timestamp: 2022-05-31 08:08:21

Version Info:

0: [No Data]

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

Elasticmalicious (high confidence)
K7AntiVirusTrojan ( 00516fdf1 )
K7GWTrojan ( 00516fdf1 )
CrowdStrikewin/malicious_confidence_100% (W)
ESET-NOD32a variant of Win32/Kryptik.HSVP
EmsisoftTrojan.GenericKD.65673989 (B)
SentinelOneStatic AI – Suspicious PE
CynetMalicious (score: 100)
MAXmalware (ai score=84)
RisingTrojan.Kryptik!1.E2E3 (CLASSIC)

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

Ransom:Win32/StopCrypt.SAK!MTB malware is extremely hard to remove by hand. It puts its documents in a variety of places throughout the disk, and can recover itself from one of the elements. Furthermore, a lot of alterations in the registry, networking settings and also Group Policies are quite hard to locate and change to the initial. It is better to make use of a specific app – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the best for virus removal objectives.

Why GridinSoft Anti-Malware? It is really lightweight and has its databases updated practically every hour. Furthermore, it does not have such problems and exposures as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware ideal for taking out 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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