Categories: Ransom

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

The Ransom:Win32/StopCrypt.MKK!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.MKK!MTB virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • A process created a hidden window
  • The binary likely contains encrypted or compressed data.
  • Executed a process and injected code into it, probably while unpacking
  • Detects Sandboxie through the presence of a library
  • Detects Avast Antivirus through the presence of a library
  • Network activity detected but not expressed in API logs
  • Anomalous binary characteristics

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


File Info:

crc32: CEE13C99md5: 2caef13c8bb68ebeeab9c02f1d674eccname: 2CAEF13C8BB68EBEEAB9C02F1D674ECC.mlwsha1: dbb8064cd588cdb52fc2be81627352e8d2e5cc04sha256: 87ac304ad10b59837156111ee42a49410f41e34af40e8c27efe62bf2e5ac4eeesha512: d5b45b71484385058cab5f01c1b16f7e63aa22a606322ac9853eebe81b3f3fcd435f47a7b0e73751b39f5b53fc334e786625f5673a02a4b740454c325096cc07ssdeep: 3072:ahElm8HdD/rjXcgVMI6/f823bthv/PITpaZkIaeh+3j6pESIO81Yl0zl19pwoJp:ahETVDwgVMp/U2PPUquSn0zl19pDJ8type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

InternalName: sajbmianozu.iyaProductVersion: 91.40.21.55Copyright: Copyrighz (C) 2021, fudkagatTranslation: 0x0126 0x007a

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

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Crypmod.trTg
Elastic malicious (high confidence)
DrWeb Trojan.Siggen15.17942
ClamAV Win.Malware.Generic-9899898-0
ALYac Trojan.Generic.30356148
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/StopCrypt.ffa293e0
K7GW Riskware ( 00584baa1 )
K7AntiVirus Riskware ( 00584baa1 )
Cyren W32/Kryptik.FLP.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.HMTY
APEX Malicious
Avast Win32:CrypterX-gen [Trj]
Cynet Malicious (score: 100)
Kaspersky HEUR:Backdoor.Win32.Mokes.gen
BitDefender Trojan.Generic.30356148
MicroWorld-eScan Trojan.Generic.30356148
Ad-Aware Trojan.Generic.30356148
Sophos ML/PE-A + Troj/Krypt-DJ
Comodo Malware@#17vn7vbk6cj93
BitDefenderTheta Gen:NN.ZexaF.34170.pq0@ay6CIRmO
TrendMicro TROJ_FRS.0NA103J721
McAfee-GW-Edition BehavesLike.Win32.MultiPlug.dh
FireEye Generic.mg.2caef13c8bb68ebe
Emsisoft Trojan.Generic.30356148 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Backdoor.Tofsee.ewc
eGambit Unsafe.AI_Score_89%
Kingsoft Win32.Hack.Undef.(kcloud)
Microsoft Ransom:Win32/StopCrypt.MKK!MTB
Arcabit Trojan.Generic.D23FB13F
GData Win32.Trojan.PSE.1HTNM21
AhnLab-V3 Ransomware/Win.Stop.R444284
Acronis suspicious
McAfee RDN/Generic.dx
MAX malware (ai score=89)
VBA32 TrojanRansom.StopCrypt
Malwarebytes Trojan.MalPack.GS
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_FRS.0NA103J721
Rising Trojan.Generic@ML.91 (RDMK:U4dqpKVq7NiT3bVGhjBlkQ)
Ikarus Trojan.Win32.Ranumbot
Fortinet PossibleThreat.PALLAS.H
AVG Win32:CrypterX-gen [Trj]
Paloalto generic.ml

How to remove Ransom:Win32/StopCrypt.MKK!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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