Categories: Ransom

Ransom:Win32/MedusaLocker.B!MTB removal guide

The Ransom:Win32/MedusaLocker.B!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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Ransom:Win32/MedusaLocker.B!MTB virus can do?

  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • CAPE extracted potentially suspicious content
  • The binary contains an unknown PE section name indicative of packing
  • Creates an autorun.inf file
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Behavioural detection: Transacted Hollowing
  • CAPE detected the MedusaLocker malware family
  • Creates a copy of itself
  • Attempts to disable UAC
  • Attempts to masquerade or mimic a legitimate process or file name
  • Attempts to modify UAC prompt behavior
  • Uses suspicious command line tools or Windows utilities

How to determine Ransom:Win32/MedusaLocker.B!MTB?


File Info:

name: 792C63E062E97BDBA54F.mlwpath: /opt/CAPEv2/storage/binaries/5e0587e61d94a40091480a2f5f78621362265b8702b3558a0db536693159865fcrc32: 99931A77md5: 792c63e062e97bdba54ffb95636b38d9sha1: ba3e10ce06ea67224ae577eab44f17d16e08e22bsha256: 5e0587e61d94a40091480a2f5f78621362265b8702b3558a0db536693159865fsha512: 1f2378036c4031f05248b56a032063093daf02910bde5ac4ef2d546bc5fdaf4f5cb465a8a8c3286410642275ae7d45803dd1d53d533f770e26037072e2a03735ssdeep: 24576:mVUtCZxVgDxcIKHcN2xcdbp+OJulrrXpobWMNhG/VO3Q0hN9jfWKXN:mmt0/6xKHmdYflrrXpovn3Q0hN9Dtype: PE32 executable (console) Intel 80386, for MS Windowstlsh: T1E8C53911BB518129FEF301F78EFD649D142DBAD00B9894C7A18C56EE866ABE13D32353sha3_384: 37102341de8aa0e03f12ff67c5c08f06554eeab24922c819947ecfdd2eba133aa3aa921cbac1d76c4439b5a96d3b826fep_bytes: e9d1ca0c00e90cc01000e9d70a0400e9timestamp: 2019-11-18 18:09:18

Version Info:

0: [No Data]

Ransom:Win32/MedusaLocker.B!MTB also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Imps.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Generic.Ransom.MedusaLocker.3B192263
CAT-QuickHeal Ransom.Medusa.S13913779
McAfee Ransomware-GUB!792C63E062E9
Malwarebytes Ransom.Medusa
Zillya Trojan.Filecoder.Win32.11349
Sangfor Ransom.Win32.MedusaLocker.B!MTB
K7AntiVirus Trojan ( 0055a9531 )
Alibaba Trojan:Win32/MedusaLocker.eb9a8b80
K7GW Trojan ( 0055a9531 )
Cybereason malicious.062e97
Symantec Ransom.Cryptolocker
ESET-NOD32 a variant of Win32/Filecoder.MedusaLocker.C
APEX Malicious
Paloalto generic.ml
ClamAV Win.Ransomware.MedusaLocker-9811279-1
Kaspersky Trojan.Win32.DelShad.bqv
BitDefender Generic.Ransom.MedusaLocker.3B192263
NANO-Antivirus Trojan.Win32.Encoder.gkbmcm
Avast Win32:Trojan-gen
Tencent Win32.Trojan.Filecoder.Jajl
Ad-Aware Generic.Ransom.MedusaLocker.3B192263
Sophos Mal/Ransom-FX
Comodo Malware@#2wcjb5x5pfaz1
F-Secure Heuristic.HEUR/AGEN.1237934
DrWeb Trojan.Encoder.30199
VIPRE Generic.Ransom.MedusaLocker.3B192263
TrendMicro Ransom.Win32.MEDUSALOCKER.SMTH
McAfee-GW-Edition Ransomware-GUB!792C63E062E9
FireEye Generic.mg.792c63e062e97bdb
Emsisoft Generic.Ransom.MedusaLocker.3B192263 (B)
Ikarus Trojan-Ransom.Medusalocker
Jiangmin Trojan.DelShad.kx
Webroot W32.Malware.Gen
Google Detected
Avira HEUR/AGEN.1237934
MAX malware (ai score=100)
Antiy-AVL Trojan/Generic.ASMalwS.6769
Microsoft Ransom:Win32/MedusaLocker.B!MTB
Arcabit Generic.Ransom.MedusaLocker.3B192263
GData Generic.Ransom.MedusaLocker.3B192263
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.RL_Generic.R335910
BitDefenderTheta Gen:NN.ZexaF.34754.LQW@aWB0stki
ALYac Trojan.Ransom.MedusaLocker
VBA32 Trojan.DelShad
Cylance Unsafe
TrendMicro-HouseCall Ransom.Win32.MEDUSALOCKER.SMTH
Rising Ransom.MedusaLocker!1.BE63 (CLASSIC)
Yandex Trojan.DelShad!o6NEdaVW3Yw
MaxSecure Trojan.Malware.74712911.susgen
Fortinet W32/MedusaLocker.C!tr.ransom
AVG Win32:Trojan-gen
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_100% (W)

How to remove Ransom:Win32/MedusaLocker.B!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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