Ransom:Win32/Stopcrypt.YAG!MTB Virus Removal

Spectating the Ransom:Win32/Stopcrypt.YAG!MTB detection usually means that your PC is in big danger. This virus can correctly be identified as ransomware – virus which encrypts your files and asks you to pay for their decryption. Removing it requires some peculiar steps that must be done as soon as possible.

Ransom:Win32/Stopcrypt.YAG!MTB detection is a malware detection you can spectate in your computer. It generally shows up after the provoking actions on your PC – opening the dubious e-mail, clicking the advertisement in the Web or setting up the program from untrustworthy sources. From the moment it shows up, you have a short time to take action before it starts its harmful action. And be sure – it is much better not to wait for these harmful actions.

What is Ransom:Win32/Stopcrypt.YAG!MTB virus?

Ransom:Win32/Stopcrypt.YAG!MTB is ransomware-type malware. It searches for the documents on your disk drives, encrypts it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this virus additionally does a lot of damage to your system. It modifies the networking setups in order to avoid you from checking out the removal guidelines or downloading the antivirus. In rare cases, Ransom:Win32/Stopcrypt.YAG!MTB can also stop the launching of anti-malware programs.

Ransom:Win32/Stopcrypt.YAG!MTB Summary

Summarizingly, Ransom:Win32/Stopcrypt.YAG!MTB virus activities 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;
  • Uses Windows utilities for basic functionality;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • Drops a binary and executes it;
  • Unconventionial language used in binary resources: Sindhi;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (Process Hollowing);
  • Behavioural detection: Injection (inter-process);
  • CAPE detected the Tofsee malware family;
  • Deletes executed files from disk;
  • Anomalous binary characteristics;
  • Uses suspicious command line tools or Windows utilities;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Encrypting the documents located on the target’s drives — so the victim cannot open these files;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of security tools

Ransomware has been a horror story for the last 4 years. It is challenging to realize a more dangerous malware for both individual users and businesses. The algorithms used in Ransom:Win32/Stopcrypt.YAG!MTB (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have more time than our galaxy already exists, and possibly will exist. However, that malware does not do all these unpleasant things immediately – it can require up to several hours to cipher all of your documents. Therefore, seeing the Ransom:Win32/Stopcrypt.YAG!MTB detection is a clear signal that you should start the elimination procedure.

Where did I get the Ransom:Win32/Stopcrypt.YAG!MTB?

Common tactics of Ransom:Win32/Stopcrypt.YAG!MTB spreading are usual for all other ransomware examples. Those are one-day landing web pages where users are offered to download and install the free program, so-called bait emails and hacktools. Bait emails are a quite modern strategy in malware spreading – you get the e-mail that simulates some routine notifications about deliveries or bank service conditions changes. Inside of the email, there is a corrupted MS Office file, or a web link which opens the exploit landing site.

Malicious email spam

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

Avoiding it looks quite easy, but still demands a lot of attention. Malware can hide in different places, and it is far better to stop it even before it goes into your system than to depend on an anti-malware program. Basic cybersecurity awareness is just an essential item in the modern world, even if your interaction with a PC stays on YouTube videos. That may keep you a lot of time and money which you would certainly spend while trying to find a fixing guide.

Ransom:Win32/Stopcrypt.YAG!MTB malware technical details

File Info:

name: 116098AFD5B532689333.mlwpath: /opt/CAPEv2/storage/binaries/84c13109b99023f3df4635c43ec8cf9f17f8223330e7d2384edf11d05bffbc03crc32: E918A4B7md5: 116098afd5b5326893338c311cf49efesha1: 5a9883b179eba6514afd164a904dcf42e84f2631sha256: 84c13109b99023f3df4635c43ec8cf9f17f8223330e7d2384edf11d05bffbc03sha512: 15c9bc11b80e66c1d5a08e2ee688e7ba8528ae1326989b8ae44391ddfc543a03eab0863aca1385990b00baf4cf0fa01496ab9ffefa665185252e2324dcb82b55ssdeep: 3072:hHBNJdiSzhhUooH4vVHJYBikwL8J9bYdBnnnITLxHzaYDGPscHuN5v5v5v5v5v5f:bvdiSNkH4vbYBikwK9bYDnWxHGYaEctype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1AEB6F980FBF2A044F2B7CA359B3299786737FCA6FD87826F1104569E18507415F8ABB1sha3_384: fc567510e12a392751ab91f937e59ec30d00d7429c1ea900a4022bd890caaff82aa6d77e4c5b0039b7cd3f48eccc6998ep_bytes: e8dd550000e989feffff578bc683e00ftimestamp: 2022-10-31 04:22:44

Version Info:

InternalName: Octubrefestival.exeLegalTrademark1: ClavionLegalTrademarks2: GunshutOriginalFilename: Techniques.exeProductVersion: 1.25.85.34Translation: 0x0409 0x04e3

Ransom:Win32/Stopcrypt.YAG!MTB also known as:

Bkav W32.AIDetectMalware
tehtris Generic.Malware
MicroWorld-eScan Trojan.GenericKDZ.103779
CAT-QuickHeal Ransom.Stop.P5
Skyhigh BehavesLike.Win32.Lockbit.vz
Malwarebytes Crypt.Trojan.Malicious.DDS
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005ad2c51 )
BitDefender Trojan.GenericKDZ.103779
K7GW Trojan ( 005ad2c51 )
CrowdStrike win/malicious_confidence_100% (D)
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Kryptik.HVBP
Cynet Malicious (score: 100)
APEX Malicious
ClamAV Win.Dropper.Tofsee-10012759-0
Kaspersky HEUR:Backdoor.Win32.Tofsee.gen
NANO-Antivirus Trojan.Win32.Kryptik.kcsuvg
Rising Spyware.Windigo!8.119B5 (TFE:5:GadQCJp328N)
Sophos ML/PE-A
DrWeb Trojan.Siggen21.51603
VIPRE Trojan.GenericKDZ.103779
TrendMicro Mal_Tofsee
Trapmine malicious.high.ml.score
FireEye Generic.mg.116098afd5b53268
Emsisoft Trojan.GenericKDZ.103779 (B)
Ikarus Trojan.Win32.Ranumbot
Varist W32/Kryptik.KYM.gen!Eldorado
Antiy-AVL Trojan/Win32.Andromeda
Microsoft Ransom:Win32/Stopcrypt.YAG!MTB
Arcabit Trojan.Generic.D19563
ZoneAlarm HEUR:Backdoor.Win32.Tofsee.gen
GData Trojan.GenericKDZ.103779
Google Detected
AhnLab-V3 Trojan/Win.TrojanX-gen.R618282
Acronis suspicious
ALYac Trojan.GenericKDZ.103779
MAX malware (ai score=87)
DeepInstinct MALICIOUS
VBA32 Malware-Cryptor.Azorult.gen
Cylance unsafe
Panda Trj/GdSda.A
TrendMicro-HouseCall Mal_Tofsee
Tencent Trojan.Win32.Obfuscated.gen
Yandex Trojan.Kryptik!3JJt1WTz/K4
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.HVBR!tr
AVG Win32:TrojanX-gen [Trj]
Cybereason malicious.179eba
Avast Win32:TrojanX-gen [Trj]

How to remove Ransom:Win32/Stopcrypt.YAG!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.

Leave a Comment