Backdoor:MSIL/WebShell.AH!MTB (file analysis)

The Backdoor:MSIL/WebShell.AH!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/WebShell.AH!MTB virus can do?

CAPE extracted potentially suspicious content
Authenticode signature is invalid
Anomalous .NET characteristics

How to determine Backdoor:MSIL/WebShell.AH!MTB?


File Info:
name: 90BD512802572330A23D.mlw
path: /opt/CAPEv2/storage/binaries/765993c31c6a369d10b4a3bc342301d96d60e2318cd280739c4e0fb47d645dfc
crc32: 34E2AD6F
md5: 90bd512802572330a23dc50f6fff3ee5
sha1: 01de78c54be9c280f0256e82551ff56f310abf34
sha256: 765993c31c6a369d10b4a3bc342301d96d60e2318cd280739c4e0fb47d645dfc
sha512: 41802165a812cc27502701663c87a56c62a75cd4b277e59ef5eaeb9bfdbf84492c740220050a121e6775a94117d8be51ca9262ebb4343a5c83ed60c47d7a6529
ssdeep: 6144:/fHVO4np+LeOkzTo2jSvlpABK5bY1PkwKL1TxDBJhTAHGhbCrrgpk712:ep
type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
tlsh: T1D744D50632E46A10F0FAAB79A6350A64DB77B8539536C21D3DCCA4ED1B73B418423F67
sha3_384: 12ae602eec58affe4da4f309fd71579c808a912d1990b455e4559eaacd07b08d7a4d2375639d593675cbdcee6dbda1f9
ep_bytes: ff250020400000000000000000000000
timestamp: 2024-01-11 18:29:33

Version Info:
0: [No Data]

Backdoor:MSIL/WebShell.AH!MTB also known as:

Bkav	W32.AIDetectMalware.CS
MicroWorld-eScan	Gen:Variant.MSILHeracles.118220
Skyhigh	BehavesLike.Win32.Infected.dm
McAfee	Artemis!90BD51280257
Malwarebytes	Generic.Malware.AI.DDS
VIPRE	Gen:Variant.MSILHeracles.118220
K7AntiVirus	Trojan ( 005ab4bd1 )
K7GW	Trojan ( 005ab4bd1 )
CrowdStrike	win/malicious_confidence_90% (W)
Symantec	Trojan.Gen.MBT
Elastic	malicious (high confidence)
ESET-NOD32	a variant of MSIL/Webshell.AU
Cynet	Malicious (score: 99)
APEX	Malicious
ClamAV	Win.Packed.Generickdz-9941382-0
Kaspersky	HEUR:Backdoor.MSIL.WebShell.gen
BitDefender	Gen:Variant.MSILHeracles.118220
Avast	Win32:BackdoorX-gen [Trj]
Emsisoft	Gen:Variant.MSILHeracles.118220 (B)
F-Secure	Backdoor.BDC/AspxShell.G
DrWeb	BackDoor.WebshellNET.8
TrendMicro	TROJ_GEN.R011C0DAD24
Ikarus	Trojan.MSIL.Webshell
GData	Gen:Variant.MSILHeracles.118220
Varist	W32/WebShell.J.gen!Eldorado
Avira	BDC/AspxShell.G
Arcabit	Trojan.MSILHeracles.D1CDCC
ZoneAlarm	HEUR:Backdoor.MSIL.WebShell.gen
Microsoft	Backdoor:MSIL/WebShell.AH!MTB
Google	Detected
AhnLab-V3	Trojan/Win.Generic.C5528305
SentinelOne	Static AI – Malicious PE
Fortinet	MSIL/Webshell.AZ!tr
AVG	Win32:BackdoorX-gen [Trj]
DeepInstinct	MALICIOUS

How to remove Backdoor:MSIL/WebShell.AH!MTB?

Backdoor:MSIL/WebShell.AH!MTB removal tool

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.

About the author

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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