Categories: Ransom

What is “Ransom:Win32/StopCrypt.SLM!MTB”?

The Ransom:Win32/StopCrypt.SLM!MTB is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Ransom:Win32/StopCrypt.SLM!MTB virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • Sample contains Overlay data
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Presents an Authenticode digital signature
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Dynamic (imported) function loading detected
  • Enumerates the modules from a process (may be used to locate base addresses in process injection)
  • CAPE extracted potentially suspicious content
  • Unconventionial language used in binary resources: Kannada
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • CAPE detected the RedLine malware family
  • Anomalous binary characteristics

How to determine Ransom:Win32/StopCrypt.SLM!MTB?


File Info:

name: 88A03F938C7464787028.mlwpath: /opt/CAPEv2/storage/binaries/558c47587989f6be610a7179f1b201bb00c0ddb5f7a98090fc262ef973fe3de7crc32: 7FEFC726md5: 88a03f938c746478702897c4be767827sha1: daafb5a34b7fc66f276be926919b89b70b0933d1sha256: 558c47587989f6be610a7179f1b201bb00c0ddb5f7a98090fc262ef973fe3de7sha512: 635f78e8f81503bc94093ec8a4de2ac96fbc80087bab688a6790a010805578111c35347ad4be3739462caee2da58cf068b6455fe59358d87a1a1d42fd8d36239ssdeep: 6144:NxnmKKwh77J+L77wrkkA4slcSlBfv5xccKn+pDgxhNt5aSrwVfjN:Nxn+7QkkfmcSD35xcd+90hdaSAtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T13284E03172A0D871E4A6163088758FB12B7EFDA25974514737643B1EAEB33C06A7932Fsha3_384: 4fd42fdd6265b44e4eca7d7013be790e6c20e557bd6ab4eec4b7af9c96dbc8ceb16e7fb054e62de772205d9339885700ep_bytes: e897510000e989feffffcccccccccccctimestamp: 2021-07-15 09:29:11

Version Info:

FileVersions: 48.90.13.84Copyrighz: Copyright (C) 2022, pozkarteProjectVersion: 94.4.7.88

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

Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
ClamAV Win.Dropper.Tofsee-9957066-0
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 00593a201 )
K7GW Trojan ( 00593a201 )
Cybereason malicious.34b7fc
Cyren W32/Kryptik.GVX.gen!Eldorado
Symantec ML.Attribute.HighConfidence
tehtris Generic.Malware
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky VHO:Trojan-PSW.Win32.Reline.gen
Rising Malware.Obscure/Heur!1.A89F (CLASSIC)
F-Secure Heuristic.HEUR/AGEN.1249898
Trapmine malicious.high.ml.score
FireEye Generic.mg.88a03f938c746478
Sophos ML/PE-A + Mal/Agent-AWV
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1249898
Microsoft Ransom:Win32/StopCrypt.SLM!MTB
Malwarebytes Trojan.MalPack.GS
Tencent Trojan-ransom.Win32.Stop.16000284
Ikarus Trojan.Bulta
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/GenericKDZ.0A77!tr
AVG PWSX-gen [Trj]
Avast PWSX-gen [Trj]
CrowdStrike win/malicious_confidence_60% (D)

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

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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