Categories: Backdoor

Backdoor:MSIL/Muddywat.A!MTB removal instruction

The Backdoor:MSIL/Muddywat.A!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 Backdoor:MSIL/Muddywat.A!MTB virus can do?

  • CAPE extracted potentially suspicious content
  • .NET file is packed/obfuscated with Confuser
  • Authenticode signature is invalid

How to determine Backdoor:MSIL/Muddywat.A!MTB?


File Info:

name: FA200E715E856550C76F.mlwpath: /opt/CAPEv2/storage/binaries/bf696397784b22f8e891dd0627dce731f288d14d4791ac5d0a906bc1cbe10de6crc32: 0C178304md5: fa200e715e856550c76f729604ebaf57sha1: 7bf879aaf66bb5fc5b97bb29c966f3b21c8e25c8sha256: bf696397784b22f8e891dd0627dce731f288d14d4791ac5d0a906bc1cbe10de6sha512: 4cb7a6a86ae9c427aa6ede67f925d54231b684160dce835c154c101cfe4839dc19e21b573e74fb7ab6ba5bce0a7e63a195e28b79336e1517a24a520f1c1725c5ssdeep: 768:PZ3yh/XhPWg6OITczIdtJcYpB8+JXLgiypicclZmJNjqvVbnE:PV0hegcwIdbcYpBK1FJqDEtype: PE32 executable (console) Intel 80386, for MS Windowstlsh: T13E932F1032B74748F3F68B3D59BA7A5068BDFF55D802CBE84A71100D1969E12AD92F3Bsha3_384: e1022987cd38953ac2440a683254c6f23b9225468b066009298f352705a8771ba693fefe33706f145c79792478d28015ep_bytes: ff250020400000000000000000000000timestamp: 2018-05-03 13:33:17

Version Info:

Translation: 0x0000 0x04b0Comments: CompanyName: FileDescription: LisfonFileVersion: 1.0.0.0InternalName: Lisfon.exeLegalCopyright: Copyright © 2018LegalTrademarks: OriginalFilename: Lisfon.exeProductName: LisfonProductVersion: 1.0.0.0Assembly Version: 1.0.0.0

Backdoor:MSIL/Muddywat.A!MTB also known as:

Bkav W32.Common.6BAC2723
Lionic Trojan.MSIL.MuddyRope.m!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Ursu.349442
ClamAV Win.Trojan.Powermud-6779287-0
FireEye Gen:Variant.Ursu.349442
McAfee Generic Trojan.fb
Malwarebytes Malware.AI.1982961157
Zillya Trojan.Agent.Win32.1028433
Sangfor Backdoor.Msil.Muddywat.V1ps
K7AntiVirus Riskware ( 0040eff71 )
Alibaba Trojan:Win32/Seedworm.181214
K7GW Riskware ( 0040eff71 )
Cybereason malicious.af66bb
BitDefenderTheta Gen:NN.ZemsilF.36662.fm0@a8HZmum
Symantec Backdoor.Powemuddy
ESET-NOD32 a variant of MSIL/Agent.BSQ
APEX Malicious
Cynet Malicious (score: 99)
Kaspersky Backdoor.MSIL.MuddyRope.e
BitDefender Gen:Variant.Ursu.349442
NANO-Antivirus Trojan.Win32.MuddyRope.flndeu
Avast Win32:Trojan-gen
Tencent Malware.Win32.Gencirc.13b7dbee
Emsisoft Gen:Variant.Ursu.349442 (B)
F-Secure Trojan.TR/Agent.brdcv
VIPRE Gen:Variant.Ursu.349442
TrendMicro Backdoor.MSIL.POWEMUDDY.THABACAH
McAfee-GW-Edition Generic Trojan.fb
Trapmine malicious.high.ml.score
Sophos Mal/Generic-R
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Ursu.349442
Jiangmin Backdoor.MSIL.ayxh
Webroot W32.Trojan.Gen
Avira TR/Agent.brdcv
MAX malware (ai score=100)
Antiy-AVL Trojan[Backdoor]/MSIL.Muddywater
Xcitium Malware@#31eonkhufu0c1
Arcabit Trojan.Ursu.D55502
ZoneAlarm Backdoor.MSIL.MuddyRope.e
Microsoft Backdoor:MSIL/Muddywat.A!MTB
Google Detected
ALYac Trojan.PowerShell.Agent
VBA32 TScope.Trojan.MSIL
Cylance unsafe
Panda Trj/GdSda.A
TrendMicro-HouseCall Backdoor.MSIL.POWEMUDDY.THABACAH
Rising Backdoor.Muddywat!8.105CF (CLOUD)
Yandex Backdoor.MuddyRope!GLXXxmwt3sc
Ikarus Trojan.Win32.Agent
MaxSecure Trojan.Malware.73983235.susgen
Fortinet MSIL/Razy.0DE6!tr
AVG Win32:Trojan-gen
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (W)

How to remove Backdoor:MSIL/Muddywat.A!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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