Categories: Backdoor

Backdoor.Bifrose (file analysis)

The Backdoor.Bifrose 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.Bifrose virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Reads data out of its own binary image
  • The binary likely contains encrypted or compressed data.
  • Queries information on disks, possibly for anti-virtualization
  • Checks for the presence of known windows from debuggers and forensic tools
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Installs itself for autorun at Windows startup
  • Checks for the presence of known devices from debuggers and forensic tools
  • Checks the version of Bios, possibly for anti-virtualization
  • Detected Armadillo packer using a known mutex
  • Collects information to fingerprint the system

How to determine Backdoor.Bifrose?


File Info:

crc32: 82F2D43Dmd5: 26dd1dbcb9eed60d5e5a006b103fb06bname: max8keygen.exesha1: 5879cd56562e38c3385421820f906c86f092b68asha256: 4763f784c888f77c2d0537dc4c8c6fd2d6ae3c3e09f2f08972245b0660b064ebsha512: 7597d1be37e48cd01c8c97efeea3d38e24d0a94ae72e027d29013aeee2aa6b0936b7279e5763ee489e0426731f969c01ea2571a7f907c879f57b890b4a494badssdeep: 6144:uCHNhhsTnLV2pPUGw4gAOzKLbpvvpfdH0OpeEbUfpnBSKN84uvdk5Wcff8Drj:uCHNnynLVUMxkbpXzU+tApnBxcSZ6type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Backdoor.Bifrose also known as:

Bkav W32.AIDetectVM.malware2
CAT-QuickHeal Backdoor.Ursap
McAfee Generic.elo
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
CrowdStrike win/malicious_confidence_60% (W)
TrendMicro HKTL_KEYGEN
F-Prot W32/Backdoor.BCBM
Symantec PUA.Keygen
TrendMicro-HouseCall HKTL_KEYGEN
ClamAV Win.Trojan.Sality-74707
GData Win32.Trojan.Agent.Q0XXQG
Alibaba Backdoor:Win32/Generic.411a7e6d
AegisLab Trojan.Win32.Generic.4!c
Invincea heuristic
McAfee-GW-Edition Generic.elo
SentinelOne DFI – Suspicious PE
Trapmine malicious.high.ml.score
APEX Malicious
Cyren W32/Backdoor.FTRN-2687
Webroot W32.Malware.Gen
Microsoft Trojan:Win32/Wacatac.C!ml
SUPERAntiSpyware Trojan.Agent/Gen-Packed
VBA32 Backdoor.Bifrose
MAX malware (ai score=96)
Panda Bck/DService.TK
Yandex Backdoor.Agent!Fw84WMafZQg
Ikarus Trojan.Win32.Agent
Fortinet Riskware/KeyGen
AVG FileRepMetagen [Malware]
MaxSecure Trojan.Malware.2588.susgen

How to remove Backdoor.Bifrose?

  • 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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