Ransom:Win32/StopCrypt.MZB!MTB

Seeing the Ransom:Win32/StopCrypt.MZB!MTB detection name means that your system is in big danger. This virus can correctly be identified as ransomware – type of malware which ciphers your files and forces you to pay for their decryption. Removing it requires some peculiar steps that must be done as soon as possible.

Ransom:Win32/StopCrypt.MZB!MTB detection is a virus detection you can spectate in your system. It generally shows up after the preliminary actions on your PC – opening the dubious e-mail, clicking the advertisement in the Internet or installing the program from dubious resources. From the second it appears, you have a short time to take action before it begins its harmful action. And be sure – it is far better not to wait for these malicious actions.

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

Ransom:Win32/StopCrypt.MZB!MTB is ransomware-type malware. It searches for the documents on your disk drive, ciphers it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your documents locked, this virus additionally does a ton of harm to your system. It changes the networking settings in order to prevent you from reading the elimination articles or downloading the antivirus. Sometimes, Ransom:Win32/StopCrypt.MZB!MTB can also prevent the launching of anti-malware programs.

Ransom:Win32/StopCrypt.MZB!MTB Summary

Summarizingly, Ransom:Win32/StopCrypt.MZB!MTB malware actions in the infected computer are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • 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;
  • Creates RWX memory;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Divehi;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Enumerates services, possibly for anti-virtualization;
  • Installs itself for autorun at Windows startup;
  • Installs itself for autorun at Windows startup;
  • CAPE detected the Tofsee malware family;
  • Created a service that was not started;
  • Anomalous binary characteristics;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the documents located on the victim’s drives — so the victim cannot open these documents;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of security tools

Ransomware has actually been a major problem for the last 4 years. It is hard to realize a more damaging malware for both individual users and companies. The algorithms utilized in Ransom:Win32/StopCrypt.MZB!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 malware does not do all these terrible things instantly – it can take up to a few hours to cipher all of your files. Thus, seeing the Ransom:Win32/StopCrypt.MZB!MTB detection is a clear signal that you need to begin the removal process.

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

Typical tactics of Ransom:Win32/StopCrypt.MZB!MTB injection are common for all other ransomware variants. Those are one-day landing websites where users are offered to download the free program, so-called bait emails and hacktools. Bait e-mails are a relatively modern strategy in malware distribution – you receive the email that mimics some routine notifications about deliveries or bank service conditions updates. Inside of 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 pretty uncomplicated, but still needs tons of awareness. Malware can hide in various spots, and it is far better to stop it even before it gets into your computer than to rely on an anti-malware program. General cybersecurity awareness is just an important item in the modern world, even if your relationship with a PC remains on YouTube videos. That can save you a great deal of money and time which you would spend while looking for a fix guide.

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

File Info:

name: 8B5EA6585BE11FB5E4AD.mlwpath: /opt/CAPEv2/storage/binaries/0d92a909c18f8af9bc3a7298eff150565394c26fe136218038927bbe9214a6facrc32: 5C01AB80md5: 8b5ea6585be11fb5e4adb18a42d29b4esha1: 8bfce6aab3ad273ec72812783c9e9efbe0c28a8bsha256: 0d92a909c18f8af9bc3a7298eff150565394c26fe136218038927bbe9214a6fasha512: 389810febae01e0d6ebd58f2e6eea6830d85bef8b61661be08231954a7a07d91a42fe348497ec2dda54efeff4602ac6e70f09d78f3255ff30f1538fc334f394assdeep: 12288:qrxwqlOkPJGsK4+nax+bIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIr:IiqnGbn7type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T127F64C2658269263E12812FD372F3792DEEDCBF9E15041F7319984F44C22EAE449B25Fsha3_384: 6da725f3468d5e5dc77595ec232b079fbbc14e7a22b9e52212acc931a0ccf84605fb78f3c99dbc75aff8f34ac6839e03ep_bytes: 8bff558bece876610000e8110000005dtimestamp: 2020-08-01 14:11:38

Version Info:

0: [No Data]

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

Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.Siggen16.16834
MicroWorld-eScan Trojan.GenericKDZ.81961
FireEye Generic.mg.8b5ea6585be11fb5
ALYac Trojan.GenericKDZ.81961
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0058c3841 )
K7GW Trojan ( 0058c3841 )
Cyren W32/Kryptik.FSC.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.HNUT
ClamAV Win.Packed.Ulise-9917518-0
Kaspersky HEUR:Trojan.Win32.Bingoml.gen
BitDefender Trojan.GenericKDZ.81961
Avast Win32:CrypterX-gen [Trj]
Tencent Backdoor.Win32.Tofsee.16000134
Ad-Aware Trojan.GenericKDZ.81961
Emsisoft Trojan.GenericKDZ.81961 (B)
Baidu Win32.Trojan.Kryptik.jm
Zillya Trojan.Kryptik.Win32.3660733
McAfee-GW-Edition BehavesLike.Win32.Dropper.vz
Sophos ML/PE-A
SentinelOne Static AI – Malicious PE
GData Win32.Trojan.BSE.1C41Z77
Jiangmin Trojan.Agent.dtnq
MaxSecure Trojan.Malware.121218.susgen
MAX malware (ai score=84)
Arcabit Trojan.Generic.D14029
Microsoft Ransom:Win32/StopCrypt.MZB!MTB
Cynet Malicious (score: 100)
AhnLab-V3 Infostealer/Win.SmokeLoader.R460442
Acronis suspicious
McAfee Packed-GEE!8B5EA6585BE1
Malwarebytes Trojan.MalPack
APEX Malicious
Rising Malware.Obscure!1.A3BB (RDMK:cmRtazqLZUahjJ2uLBElH+tetGZn)
Yandex Trojan.GenKryptik!WHEpes3HNf8
Ikarus Trojan.Win32
eGambit Unsafe.AI_Score_69%
Fortinet W32/Kryptik.FSC!tr
AVG Win32:CrypterX-gen [Trj]
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_90% (D)

How to remove Ransom:Win32/StopCrypt.MZB!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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