Ransom:Win32/StopCrypt.SLF!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:Win32/StopCrypt.SLF!MTB detection usually means that your computer is in big danger. This virus can correctly be named as ransomware – type of malware which encrypts your files and forces you to pay for their decryption. Deleteing it requires some unusual steps that must be taken as soon as possible.
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Ransom:Win32/StopCrypt.SLF!MTB detection is a malware detection you can spectate in your computer. It often appears after the provoking procedures on your computer – opening the dubious email messages, clicking the banner in the Web or installing the program from suspicious sources. From the moment it shows up, you have a short time to do something about it before it starts its destructive action. And be sure – it is better not to await these harmful effects.

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

Ransom:Win32/StopCrypt.SLF!MTB is ransomware-type malware. It searches for the documents on your disks, ciphers it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your documents inaccessible, this malware additionally does a ton of damage to your system. It modifies the networking settings in order to prevent you from looking for the removal tutorials or downloading the antivirus. In some cases, Ransom:Win32/StopCrypt.SLF!MTB can also block the launching of anti-malware programs.

Ransom:Win32/StopCrypt.SLF!MTB Summary

In summary, Ransom:Win32/StopCrypt.SLF!MTB ransomware activities in the infected PC 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;
  • The binary likely contains encrypted or compressed data.;
  • 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;
  • Encrypting the files located on the victim’s disk drive — so the victim cannot open these documents;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of anti-virus apps

Ransomware has actually been a headache for the last 4 years. It is difficult to realize a more dangerous malware for both individuals and organizations. The algorithms used in Ransom:Win32/StopCrypt.SLF!MTB (typically, 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. But that malware does not do all these unpleasant things instantly – it can require up to a few hours to cipher all of your files. Hence, seeing the Ransom:Win32/StopCrypt.SLF!MTB detection is a clear signal that you need to begin the removal process.

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

Usual methods of Ransom:Win32/StopCrypt.SLF!MTB injection are typical for all other ransomware variants. Those are one-day landing sites where victims are offered to download the free app, so-called bait e-mails and hacktools. Bait e-mails are a relatively new tactic in malware spreading – you receive the e-mail that mimics some normal notifications about shipments or bank service conditions modifications. Within the e-mail, there is an infected MS Office file, or a web 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 simple, however, still requires a lot of focus. Malware can hide in different places, and it is better to prevent it even before it invades your PC than to rely on an anti-malware program. Basic cybersecurity awareness is just an important thing in the modern-day world, even if your interaction with a PC remains on YouTube videos. That may save you a great deal of money and time which you would certainly spend while trying to find a fix guide.

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

File Info:

name: 9D3B42ED2740C8011F35.mlw
path: /opt/CAPEv2/storage/binaries/53566b9ca1304a14cc64d8560a6e14e4c4812f57f5f58415a7d47269277b3cb8
crc32: 76FAFA91
md5: 9d3b42ed2740c8011f35cc94811e7aee
sha1: 85c99504ac1dbef95cb70fc42ff82f22d1ac48d6
sha256: 53566b9ca1304a14cc64d8560a6e14e4c4812f57f5f58415a7d47269277b3cb8
sha512: ac798bfc2893ff6daae20ed74b8a7f0a642eeeaff078b956f0deb409cf172711f612cb01b493dbf758819b8c8acc1d09083a649b7af93c13f3695138deb7c9e9
ssdeep: 3072:SEZrXxbs2YKI7dJyHwME3S6HZk8Mn2umZ/sKC:tXxbsnyHIC65kXn2zsK
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1A8D3CF46B6E24036E1FF6A7C187592519A7F7C637B30858F275422AE9E713C089B432F
sha3_384: 4605b63815861e186affd516f2ad78cb34ece77743d591bbf65628ba807d8643bf250c9ba57a0d925e5ceadcb866b52c
ep_bytes: e8b8160000e989feffff8bff558bec8b
timestamp: 2021-05-04 15:16:47

Version Info:

FileVersions: 98.55.22.41
Copyright: Copyright (C) 2022, soboklos
ProjectVersion: 74.85.66.75

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

Bkav W32.AIDetect.malware2
Lionic Heuristic.File.Generic.00×1!p
AVG Win32:PWSX-gen [Trj]
MicroWorld-eScan Trojan.GenericKD.61550928
FireEye Generic.mg.9d3b42ed2740c801
ALYac Trojan.GenericKD.61550928
Cylance Unsafe
VIPRE Trojan.GenericKD.61550928
Sangfor Trojan.Win32.Save.a
K7AntiVirus Riskware ( 00584baa1 )
K7GW Riskware ( 00584baa1 )
Cybereason malicious.4ac1db
Cyren W32/Kryptik.HGS.gen!Eldorado
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
ESET-NOD32 Win32/Smokeloader.F
Cynet Malicious (score: 100)
APEX Malicious
Paloalto generic.ml
ClamAV Win.Malware.Dropperx-9965436-0
Kaspersky Trojan.Win32.Chapak.feip
BitDefender Trojan.GenericKD.61550928
Avast Win32:PWSX-gen [Trj]
Ad-Aware Trojan.GenericKD.61550928
Sophos ML/PE-A
TrendMicro TrojanSpy.Win32.REDLINE.YXCH2Z
McAfee-GW-Edition BehavesLike.Win32.Generic.cc
Trapmine malicious.moderate.ml.score
Emsisoft Trojan.GenericKD.61550928 (B)
SentinelOne Static AI – Malicious PE
GData Win32.Trojan.PSE.1AK7L5H
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Arcabit Trojan.Generic.D3AB3150
Microsoft Ransom:Win32/StopCrypt.SLF!MTB
Google Detected
AhnLab-V3 Packed/Win.GDT.R512665
Acronis suspicious
McAfee Artemis!9D3B42ED2740
VBA32 BScope.Backdoor.Vawtrak
Malwarebytes Trojan.MalPack.GS
TrendMicro-HouseCall TrojanSpy.Win32.REDLINE.YXCH2Z
Rising [email protected] (RDML:l+p0wjd5mZD06e5ADYg5YQ)
MaxSecure Trojan.Malware.300983.susgen
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_100% (W)

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

Ransom:Win32/StopCrypt.SLF!MTB malware is incredibly difficult to eliminate by hand. It stores its data in several places throughout the disk, and can get back itself from one of the parts. In addition, a lot of changes in the windows registry, networking configurations and also Group Policies are fairly hard to find and return to the initial. It is far better to utilize a special app – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the most ideal for malware elimination goals.

Why GridinSoft Anti-Malware? It is very light-weight and has its detection databases updated nearly every hour. Moreover, it does not have such problems and exploits as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware perfect for clearing away 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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