Ransom:Win32/StopCrypt.SZ!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:Win32/StopCrypt.SZ!MTB detection name means that your PC is in big danger. This virus can correctly be identified as ransomware – sort of malware which encrypts your files and forces you to pay for their decryption. Stopping it requires some peculiar steps that must be done as soon as possible.
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Ransom:Win32/StopCrypt.SZ!MTB detection is a malware detection you can spectate in your computer. It often shows up after the preliminary activities on your computer – opening the dubious e-mail, clicking the advertisement in the Web or mounting the program from suspicious resources. From the moment it shows up, you have a short time to act before it begins its harmful action. And be sure – it is better not to await these harmful things.

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

Ransom:Win32/StopCrypt.SZ!MTB is ransomware-type malware. It looks for the files on your computer, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your documents inaccessible, this virus additionally does a lot of damage to your system. It changes the networking settings in order to avoid you from checking out the elimination tutorials or downloading the antivirus. In some cases, Ransom:Win32/StopCrypt.SZ!MTB can also stop the launching of anti-malware programs.

Ransom:Win32/StopCrypt.SZ!MTB Summary

In total, Ransom:Win32/StopCrypt.SZ!MTB ransomware actions in the infected computer are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Tswana;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • CAPE detected the Tofsee malware family;
  • Deletes executed files from disk;
  • Anomalous binary characteristics;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the files kept on the target’s disk — so the victim cannot use these documents;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-virus apps

Ransomware has actually been a nightmare for the last 4 years. It is difficult to realize a more damaging virus for both individuals and businesses. The algorithms utilized in Ransom:Win32/StopCrypt.SZ!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 currently exists, and possibly will exist. But that virus does not do all these horrible things immediately – it can take up to a few hours to cipher all of your documents. Therefore, seeing the Ransom:Win32/StopCrypt.SZ!MTB detection is a clear signal that you should start the removal procedure.

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

Standard methods of Ransom:Win32/StopCrypt.SZ!MTB injection are usual for all other ransomware examples. Those are one-day landing websites where victims are offered to download the free app, so-called bait emails and hacktools. Bait e-mails are a relatively modern method in malware distribution – you get the email that simulates some regular notifications about deliveries or bank service conditions shifts. Inside of the e-mail, there is a malicious 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.

Avoiding it looks pretty uncomplicated, however, still needs a lot of recognition. Malware can hide in various spots, and it is far better to prevent it even before it goes into your PC than to rely on an anti-malware program. Standard cybersecurity knowledge is just an essential item in the modern-day world, even if your interaction with a computer stays on YouTube videos. That may keep you a lot of time and money which you would spend while seeking a fix guide.

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

File Info:

name: 66411B5ECBDDD6A7A782.mlw
path: /opt/CAPEv2/storage/binaries/f742e44ede6f2d13f7d2a3908195c0c61084d7ed359a67de1dea18b90a5f60e8
crc32: E5C923C3
md5: 66411b5ecbddd6a7a782498d752cb366
sha1: 5f5425fbf7c0c7b5ab53f06e55fb89f0c9c307e4
sha256: f742e44ede6f2d13f7d2a3908195c0c61084d7ed359a67de1dea18b90a5f60e8
sha512: 09bde09a3736f078a0d62275756cb34608b64e34bf667d0fc22bfe820dc4e8edd2f1c7acdd04c2444cc277d1747e2643b24789ca6bc2a0b6e3c44fc851620331
ssdeep: 3072:kylhBhD16Lz+BPyz58CGNmpyt8SFPeoA48L8XKP70YNfehLM/h3:xhBV0L6BIbpM1eoA48WKP4YFi
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T105E63A720C6100FFC8DACEBD9B3ABB78C4ACD6F0911A1873995143D165135AB7BC1A6B
sha3_384: 482a651380eaa3167dc20e80eb822bc7a4d2e0f3d9b18c87af2f059a04525266375d4fc2d79e3c3863195ff80255bb17
ep_bytes: e8a0520000e979feffffcccccccccccc
timestamp: 2021-12-02 18:27:40

Version Info:

FileVersions: 68.78.22.84
InternationalName: povgwaoci.iwe
Copyright: Copyright (C) 2022, somoklos
ProjectVersion: 78.66.15.65

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

Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.DownLoad4.15280
MicroWorld-eScan Trojan.GenericKDZ.93135
FireEye Generic.mg.66411b5ecbddd6a7
ALYac Trojan.GenericKDZ.93135
Cylance Unsafe
K7AntiVirus Trojan ( 0059a1561 )
Cybereason malicious.bf7c0c
Cyren W32/Kryptik.HUW.gen!Eldorado
Symantec ML.Attribute.HighConfidence
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/Kryptik.HRIY
APEX Malicious
ClamAV Win.Dropper.Tofsee-9976196-0
Kaspersky HEUR:Backdoor.Win32.Tofsee.gen
BitDefender Trojan.GenericKDZ.93135
Avast Win32:BotX-gen [Trj]
Ad-Aware Trojan.GenericKDZ.93135
Sophos ML/PE-A + Troj/Krypt-RQ
McAfee-GW-Edition Lockbit-FSWW!66411B5ECBDD
Trapmine malicious.moderate.ml.score
Emsisoft Trojan.GenericKDZ.93135 (B)
Ikarus Trojan-Ransom.StopCrypt
GData Trojan.GenericKDZ.93135
Google Detected
Avira TR/Crypt.XPACK.Gen
MAX malware (ai score=84)
Antiy-AVL Trojan/Generic.ASMalwS.769
Arcabit Trojan.Generic.D16BCF
ZoneAlarm HEUR:Backdoor.Win32.Tofsee.gen
Microsoft Ransom:Win32/StopCrypt.SZ!MTB
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win.RedLine.R532255
Acronis suspicious
Malwarebytes Trojan.MalPack.GS
Rising [email protected] (RDML:s1O1mLI0TRZzInFDHUD7Jw)
SentinelOne Static AI – Malicious PE
Fortinet W32/GenericKDZ.B365!tr
AVG Win32:BotX-gen [Trj]

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

Ransom:Win32/StopCrypt.SZ!MTB malware is very difficult to eliminate manually. It puts its files in several locations throughout the disk, and can get back itself from one of the parts. Moreover, a range of modifications in the registry, networking configurations and also Group Policies are pretty hard to locate and revert to the initial. It is far better to make use of a special app – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the best for virus elimination goals.

Why GridinSoft Anti-Malware? It is very light-weight and has its databases updated practically every hour. Additionally, it does not have such bugs and exposures as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware perfect for taking out 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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