Categories: Trojan

Trojan:Win32/OffLoader!MTB (file analysis)

The Trojan:Win32/OffLoader!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 Trojan:Win32/OffLoader!MTB virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • A file was accessed within the Public folder.
  • Sample contains Overlay data
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Deletes executed files from disk
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Trojan:Win32/OffLoader!MTB?


File Info:

name: 8D1D8A5B60A0C00656BC.mlwpath: /opt/CAPEv2/storage/binaries/3ff78775f852a85d52182bc7ff15b676592e4ce0f2ab965b580f4e349ea798f8crc32: 5B906891md5: 8d1d8a5b60a0c00656bc84f812a87ee6sha1: 5e6e2335d3196cdba0a50b70e1c0a5ad730cbd08sha256: 3ff78775f852a85d52182bc7ff15b676592e4ce0f2ab965b580f4e349ea798f8sha512: 36b87e515835320e7c3579921ac6bc118106b3b2b6c447d55860fafd4712dd38931940481da526b0f827ca70c1cbb3e8c0d8454fa309208f05c3e38f8654ac47ssdeep: 24576:s7FUDowAyrTVE3U5F/x/0Kic6QL3E2vVsjECUAQT45deRV9RX:sBuZrEUd0KIy029s4C1eH9Vtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1B075BE3FF268A13EC56A1B3245738320997BBA61B81A8C1E47FC344DCF765601E3B656sha3_384: a86a0d7c712e5b9e603d76df9eb2879e38e0c73bbeca90837f8b41efb2901b3e1e0afa6b273991214271d18f4a418a73ep_bytes: 558bec83c4a453565733c08945c48945timestamp: 2023-02-15 14:54:16

Version Info:

Comments: This installation was built with Inno Setup.CompanyName: FileDescription: My Program Setup FileVersion: LegalCopyright: OriginalFileName: ProductName: My Program ProductVersion: 1.5 Translation: 0x0000 0x04b0

Trojan:Win32/OffLoader!MTB also known as:

Bkav W32.AIDetectMalware
Elastic malicious (high confidence)
Skyhigh BehavesLike.Win32.Trojan.tc
McAfee Artemis!8D1D8A5B60A0
Cylance unsafe
K7AntiVirus Trojan ( 005a462a1 )
K7GW Trojan ( 005a462a1 )
Cynet Malicious (score: 100)
APEX Malicious
Avast FileRepMalware [Misc]
Sophos Install Core (PUA)
SentinelOne Static AI – Suspicious PE
Microsoft Trojan:Win32/OffLoader!MTB
Malwarebytes PUP.Optional.VkontakteDJ
MaxSecure Trojan.Malware.300983.susgen
AVG FileRepMalware [Misc]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_70% (D)

How to remove Trojan:Win32/OffLoader!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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