Categories: Backdoor

Backdoor:MSIL/Webshell.BB!MTB malicious file

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.

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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: A608D7D22ADBB3F8FEE9.mlwpath: /opt/CAPEv2/storage/binaries/58e435cac531d568cfa40cff02bd748a53c3c643745fcd971a4ddc0de7d79f0ecrc32: 19A07CD8md5: a608d7d22adbb3f8fee9ba65ba267629sha1: ee1bf5025e426446dc92105da20d203e727f4ad8sha256: 58e435cac531d568cfa40cff02bd748a53c3c643745fcd971a4ddc0de7d79f0esha512: 1864e37bada08febb029002d3d1b6ca4e03db3320cb633638f747d015a60558111f1e8944fa31d99a070a32cf725924e7bbad427e054feb39cbdce5187459241ssdeep: 384:E+0rNHcVAFdMQogsz+ksDimTpTmxOtKX7Lt4T:cFoNykGT9KxOtKnetype: PE32 executable (DLL) (GUI) Intel 80386, for MS Windowstlsh: T1B952F91AEA94CD63C6776735A3B69A00C5B695071652CF1EBCCCB4CA6FB331402A2FC4sha3_384: 470887fe36c33c152ef1fd026a6114c3ffa99855b08eecc2877f42e87cc6e7296602ec2c78970fe52552e2127df797b8ep_bytes: ff250020001000000000000000000000timestamp: 2024-03-03 18:20:36

Version Info:

0: [No Data]

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

Bkav W32.AIDetectMalware.CS
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.MSILHeracles.61452
FireEye Gen:Variant.MSILHeracles.61452
Skyhigh GenericRXWN-NY!A608D7D22ADB
McAfee GenericRXWN-NY!A608D7D22ADB
Malwarebytes Trojan.WebShell.MSIL
VIPRE Gen:Variant.MSILHeracles.61452
K7GW Trojan ( 005b19ee1 )
K7AntiVirus Trojan ( 005b19ee1 )
Symantec Trojan.Gen.MBT
ESET-NOD32 a variant of MSIL/Webshell.EV
APEX Malicious
TrendMicro-HouseCall TROJ_GEN.R011C0DC524
ClamAV Win.Packed.Webshell-10016062-0
Kaspersky HEUR:Backdoor.MSIL.WebShell.gen
BitDefender Gen:Variant.MSILHeracles.61452
Avast Win32:BackdoorX-gen [Trj]
F-Secure Trojan.TR/Dropper.MSIL.Gen
DrWeb BackDoor.WebshellNET.9
Zillya Trojan.Webshell.Win32.16638
TrendMicro TROJ_GEN.R011C0DC524
Emsisoft Gen:Variant.MSILHeracles.61452 (B)
Ikarus Trojan.MSIL.Webshell
Google Detected
Avira TR/Dropper.MSIL.Gen
Varist W32/WebShell.E.gen!Eldorado
Microsoft Backdoor:MSIL/Webshell.BB!MTB
Arcabit Trojan.MSILHeracles.DF00C
ZoneAlarm HEUR:Backdoor.MSIL.WebShell.gen
GData MSIL.Trojan.PSE.14W6LGL
AhnLab-V3 Backdoor/Win.WEBSHELL.C5557108
ALYac Gen:Variant.MSILHeracles.61452
MAX malware (ai score=82)
Panda Trj/GdSda.A
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.121218.susgen
Fortinet W32/Webshell.EE!tr
AVG Win32:BackdoorX-gen [Trj]

How to remove Backdoor:MSIL/Webshell.BB!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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