Categories: Backdoor

Backdoor.Bifrose.ACI (file analysis)

The Backdoor.Bifrose.ACI 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.ACI virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Attempts to modify desktop wallpaper
  • Anomalous binary characteristics

How to determine Backdoor.Bifrose.ACI?


File Info:

name: 04873E4C822B6ED0E8E2.mlwpath: /opt/CAPEv2/storage/binaries/e7a0cadf19afca57a3127d7a517f426b0fd4bfd6ae702aa7360564ea1d4811b0crc32: 5C470BD6md5: 04873e4c822b6ed0e8e2f6fa5b416d4esha1: 8c1850d20a6ca54d2a608e4d8d9589fa130fd1easha256: e7a0cadf19afca57a3127d7a517f426b0fd4bfd6ae702aa7360564ea1d4811b0sha512: 5f00ecb004479f9736a23a91d0e513e9e871181c0a715dd7ec88a1946af9a560ae17cb268bf7d176187e04de404783977eddc9499b4c37306ce3a79096476597ssdeep: 768:4VzTAI319fmgDbTIpKd9als2OACysguqT16qBkupM6ie9g5ZYj:yAufbTIAYOA0OT16qZ//type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1F323F1265334FE20E99FE8BFA2BF81B641C25DF944436D50220186E292D8D53BCE6F47sha3_384: 9113bcd11e288c6ae51d2a1194bee85eee6a4be17613efd5b9e0c64cf1e50ca16e505d25cd104b297c7b4aa1351abae9ep_bytes: 558bec83ec4456ff15101040008bf08atimestamp: 2006-12-01 19:03:19

Version Info:

0: [No Data]

Backdoor.Bifrose.ACI also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Agent.kYNf
MicroWorld-eScan Backdoor.Bifrose.ACI
FireEye Generic.mg.04873e4c822b6ed0
ALYac Backdoor.Bifrose.ACI
Cylance Unsafe
K7AntiVirus Trojan ( 0055e3f01 )
Alibaba Malware:Win32/km_2a8b722.None
K7GW Trojan ( 0055e3f01 )
Cybereason malicious.c822b6
VirIT Backdoor.Win32.Generic.ARWV
Cyren W32/Backdoor.ZYDR-5708
Symantec Backdoor.Bifrose
Elastic malicious (high confidence)
ESET-NOD32 Win32/Bifrose.ACI
APEX Malicious
Paloalto generic.ml
ClamAV Win.Trojan.Bifrose-350
Kaspersky Backdoor.Win32.Bifrose.aci
BitDefender Backdoor.Bifrose.ACI
NANO-Antivirus Trojan.Win32.Bifrose.ijiag
SUPERAntiSpyware Trojan.Agent/Gen-Bifrose
Avast Win32:Bifrose-AAI [Trj]
Tencent Backdoor.Win32.Bifrose.tbx
Ad-Aware Backdoor.Bifrose.ACI
Sophos ML/PE-A + Troj/Bifrose-UP
Comodo Backdoor.Win32.Bifrose.NBB@19r2
F-Secure Backdoor.BDS/Bifrose.acgi
DrWeb BackDoor.Bifrost.569
Zillya Backdoor.Bifrose.Win32.41900
TrendMicro BKDR_BIFROSE.AQR
McAfee-GW-Edition BehavesLike.Win32.PWSZbot.pc
Emsisoft Backdoor.Bifrose.ACI (B)
SentinelOne Static AI – Malicious PE
GData Backdoor.Bifrose.ACI
Jiangmin Backdoor/Bifrose.al
Avira BDS/Bifrose.acgi
ViRobot Backdoor.Win32.Bifrose.25000
Microsoft Backdoor:Win32/Bifrose
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Bifrose.R6615
Acronis suspicious
McAfee Backdoor-CEP.gen.f
MAX malware (ai score=100)
VBA32 BScope.Backdoor.Agent
Malwarebytes Trojan.MalPack.Generic
TrendMicro-HouseCall BKDR_BIFROSE.AQR
Rising Backdoor.Bifrose!1.A05C (CLOUD)
Yandex Trojan.Bifrose!JIFM4ap2MHE
Ikarus Backdoor.Win32.Bifrose
MaxSecure Backdoor.W32.Bifrose.Aci
Fortinet W32/Bifrose.BBT!tr
BitDefenderTheta AI:Packer.9D8B3BFE1E
AVG Win32:Bifrose-AAI [Trj]
Panda Bck/Bifrose.AIO
CrowdStrike win/malicious_confidence_100% (W)

How to remove Backdoor.Bifrose.ACI?

  • 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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