Ransom:Win32/StopCrypt.MZC!MTB

Seeing the Ransom:Win32/StopCrypt.MZC!MTB malware detection usually means that your PC is in big danger. This virus can correctly be named as ransomware – type of malware which ciphers your files and asks you to pay for their decryption. Stopping it requires some peculiar steps that must be taken as soon as possible.

Ransom:Win32/StopCrypt.MZC!MTB detection is a malware detection you can spectate in your computer. It generally appears after the provoking actions on your computer – opening the suspicious e-mail, clicking the advertisement in the Internet or setting up the program from untrustworthy resources. From the moment it appears, you have a short time to take action until it begins its destructive activity. And be sure – it is much better not to wait for these destructive effects.

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

Ransom:Win32/StopCrypt.MZC!MTB is ransomware-type malware. It searches for the documents on your computer, ciphers it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this virus additionally does a ton of harm to your system. It modifies the networking setups in order to stop you from reading the removal articles or downloading the antivirus. Sometimes, Ransom:Win32/StopCrypt.MZC!MTB can additionally stop the setup of anti-malware programs.

Ransom:Win32/StopCrypt.MZC!MTB Summary

In total, Ransom:Win32/StopCrypt.MZC!MTB malware actions in the infected PC 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;
  • Dynamic (imported) function loading detected;
  • Performs HTTP requests potentially not found in PCAP.;
  • HTTPS urls from behavior.;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Manipuri;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (Process Hollowing);
  • Executed a process and injected code into it, probably while unpacking;
  • Behavioural detection: Injection (inter-process);
  • Created a process from a suspicious location;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Attempts to modify proxy settings;
  • Encrypting the files located on the target’s disk drive — so the victim cannot check these documents;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of anti-malware programs

Ransomware has actually been a nightmare for the last 4 years. It is difficult to imagine a more harmful virus for both individual users and companies. The algorithms used in Ransom:Win32/StopCrypt.MZC!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 actually exists, and possibly will exist. But that virus does not do all these terrible things immediately – it can take up to a few hours to cipher all of your documents. Therefore, seeing the Ransom:Win32/StopCrypt.MZC!MTB detection is a clear signal that you should begin the removal procedure.

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

Standard ways of Ransom:Win32/StopCrypt.MZC!MTB spreading are typical for all other ransomware variants. Those are one-day landing web pages where users are offered to download and install the free program, so-called bait e-mails and hacktools. Bait e-mails are a quite new tactic in malware spreading – you receive the email that simulates some routine notifications about shipments or bank service conditions modifications. Inside of the e-mail, there is a malicious MS Office file, or a link which opens the exploit landing site.

Malicious email spam

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

Preventing it looks fairly simple, however, still demands tons of attention. Malware can hide in different places, and it is much better to prevent it even before it invades your computer than to depend on an anti-malware program. Essential cybersecurity knowledge is just an important thing in the modern world, even if your relationship with a computer remains on YouTube videos. That may save you a great deal of money and time which you would spend while seeking a solution.

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

File Info:

name: 6126C03A2F283EEBB24C.mlwpath: /opt/CAPEv2/storage/binaries/4da789d0992102f81d10ef1fe35c78890357f1f1324a9e7284c339c015ca6fcacrc32: 82D64898md5: 6126c03a2f283eebb24cbdfb805d4301sha1: 5d5f2400f4a35b8d72f0ae5d4f52670ae863516asha256: 4da789d0992102f81d10ef1fe35c78890357f1f1324a9e7284c339c015ca6fcasha512: 36a51903bce6271f8b13484ba1bee6e19ee6bb92cf05d677185c924e9cef85b8426d9268ce33ce8070a669dd536ecdd720d1fdcd5e1c08f28dbd2e656192d0aessdeep: 12288:aa5j+rfUDBfS7wDSHlEXJDUs+5e4jCohjVp2u87kB:aC+rk3hDzAeEbl2uvBtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T11EE401F075B28572D152353058269FA46EBFBD25CA21458B367A138EAFF31C4062AF1Fsha3_384: 1344330492da453ef6011be3442e4cdd34e8605b7c2c3ef2fb3d29d4f364924b778d41dd3785934b5619aa1bf6b1ad16ep_bytes: e8c93b0000e979feffff8bff558bec8btimestamp: 2021-03-04 01:25:52

Version Info:

InternationalName: bomgvioci.iwaCopyright: Copyrighz (C) 2021, fudkortProjectVersion: 3.14.72.77Translation: 0x0129 0x07bc

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

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Injuke.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Jaik.49991
FireEye Generic.mg.6126c03a2f283eeb
ALYac Gen:Variant.Jaik.49991
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Riskware ( 0040eff71 )
Alibaba Ransom:Win32/StopCrypt.6200b7bb
K7GW Riskware ( 0040eff71 )
Cybereason malicious.0f4a35
Arcabit Trojan.Jaik.DC347
Cyren W32/Kryptik.FWV.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.HNVH
APEX Malicious
Paloalto generic.ml
ClamAV Win.Dropper.Tofsee-9919472-0
Kaspersky HEUR:Trojan.Win32.Agent.gen
BitDefender Gen:Variant.Jaik.49991
Avast Win32:CrypterX-gen [Trj]
Ad-Aware Gen:Variant.Jaik.49991
Sophos Mal/Agent-AWV
DrWeb Trojan.MulDrop19.20472
McAfee-GW-Edition BehavesLike.Win32.Emotet.jc
Emsisoft Gen:Variant.Jaik.49991 (B)
Ikarus Trojan-Ransom.StopCrypt
Jiangmin Backdoor.Androm.bcnw
Avira TR/AD.MalwareCrypter.wcbil
MAX malware (ai score=87)
Microsoft Ransom:Win32/StopCrypt.MZC!MTB
GData Gen:Variant.Jaik.49991
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win.Generic.R374424
Acronis suspicious
McAfee Lockbit-FSWW!6126C03A2F28
VBA32 BScope.Trojan.Agent
Malwarebytes Trojan.MalPack.GS
TrendMicro-HouseCall TROJ_GEN.R002H0CLT21
Rising [email protected] (RDML:p6zoh7uvIqS5hJFXSm7LfQ)
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_76%
Fortinet W32/GenKryptik.ERHN!tr
AVG Win32:CrypterX-gen [Trj]
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_90% (W)
MaxSecure Trojan.Malware.300983.susgen

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

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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