Should I remove “Backdoor:MSIL/Webshell.BB!MTB”?

The Backdoor:MSIL/Webshell.BB!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.

GridinSoft Anti-Malware

Gridinsoft Anti-Malware

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.

6-day free trial available.

What Backdoor:MSIL/Webshell.BB!MTB virus can do?

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

How to determine Backdoor:MSIL/Webshell.BB!MTB?


File Info:
name: 91848EF3BACC385C0EA2.mlw
path: /opt/CAPEv2/storage/binaries/568aaa3ae6417e58517e3f74751e43a91eb304905a096a1a766a957d4548289e
crc32: 4DC0929F
md5: 91848ef3bacc385c0ea2d3535b7aff30
sha1: 4caafce71dfda2500f2bdb34271dee691adc1406
sha256: 568aaa3ae6417e58517e3f74751e43a91eb304905a096a1a766a957d4548289e
sha512: 82a33122ed7925c3d0945cfaa464cc7904b01e7fa36000630826aa437c9087133a4ad14e389cbf1ee4e42c441ea617b302d45b907f827c059bf46cc821e78958
ssdeep: 1536:32S21rmV42rlGZAAAAzAAAAh/HBKLK/6:32S21r+4lAAAAzAAAA
type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
tlsh: T1F5537224A8D64033C0B392F68A660B15FEF0521BC643C6507AEC93E71FF2D91E967A5D
sha3_384: 1b0d33db358f17f54c94ed5843916f6e14c8aa3fe45c1be6fba3a75150011bd41a0286aef7ee69bc81d83bb2452f99c0
ep_bytes: ff250020400000000000000000000000
timestamp: 2023-06-01 18:12:09

Version Info:
0: [No Data]

Backdoor:MSIL/Webshell.BB!MTB also known as:

Bkav	W32.AIDetectMalware.CS
Lionic	Trojan.Win32.WebShell.4!c
Elastic	malicious (high confidence)
DrWeb	BackDoor.WebshellNET.6
MicroWorld-eScan	Gen:Variant.Tedy.378409
Skyhigh	RDN/Generic BackDoor
McAfee	RDN/Generic BackDoor
Cylance	unsafe
Zillya	Backdoor.WebShell.Win32.28
Sangfor	Backdoor.Shell.Agent.Vtd0
CrowdStrike	win/malicious_confidence_70% (D)
Alibaba	Backdoor:MSIL/WebShell.cba3fa12
K7GW	Trojan ( 0059ee201 )
K7AntiVirus	Trojan ( 0059ee201 )
Symantec	Trojan.Gen.MBT
ESET-NOD32	a variant of MSIL/Webshell.EE
Cynet	Malicious (score: 99)
Kaspersky	HEUR:Backdoor.MSIL.WebShell.gen
BitDefender	Gen:Variant.Tedy.378409
NANO-Antivirus	Trojan.Win32.WebShell.jwlvts
Avast	Win32:Trojan-gen
Tencent	Malware.Win32.Gencirc.13c7f01d
Emsisoft	Gen:Variant.Tedy.378409 (B)
F-Secure	Trojan.TR/Dropper.MSIL.Gen
VIPRE	Gen:Variant.Tedy.378409
Sophos	Mal/Generic-S
Ikarus	Trojan.MSIL.Webshell
Varist	W32/Trojan.IJSF-3171
Avira	TR/Dropper.MSIL.Gen
Antiy-AVL	Trojan/MSIL.WebShell
Microsoft	Backdoor:MSIL/Webshell.BB!MTB
Arcabit	Trojan.Tedy.D5C629
ZoneAlarm	HEUR:Backdoor.MSIL.WebShell.gen
GData	Gen:Variant.Tedy.378409
Google	Detected
Panda	Trj/Chgt.AD
SentinelOne	Static AI – Suspicious PE
Fortinet	W32/Webshell.EE!tr
AVG	Win32:Trojan-gen
DeepInstinct	MALICIOUS

How to remove Backdoor:MSIL/Webshell.BB!MTB?

Backdoor:MSIL/Webshell.BB!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.

Leave a Comment X