Categories: Backdoor

Backdoor:Win32/Kelihos!rfn removal instruction

The Backdoor:Win32/Kelihos!rfn 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:Win32/Kelihos!rfn 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
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • Authenticode signature is invalid

How to determine Backdoor:Win32/Kelihos!rfn?


File Info:

name: 090F2BDFC3E18DD44066.mlwpath: /opt/CAPEv2/storage/binaries/6876b474fbc6e906ccf630c0335404aa662fddb0c91adc36a40512755a6035a8crc32: 752C4002md5: 090f2bdfc3e18dd4406636c4b26bc707sha1: 74621f82b9a627e246d63e365dd175b3e06fd2dasha256: 6876b474fbc6e906ccf630c0335404aa662fddb0c91adc36a40512755a6035a8sha512: 3952b8646bfe21a91777b03ceb4ac785f6e470cecab3d28cbc1cd86df748ed31c58da5f107d458635f07290d29b3266f5efd14b874c90c8c81effe591f0d8900ssdeep: 1536:9485TFmI7hCJZuV8ueQxyTJ9+Iqadyj7RSDVODaPXfPIqQ0k2HiK:97n7hCJZu6uMl9fnyXRcXHIqjk2CKtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T148B37DB523D41833D462C1F0CAA6CA86496A6EF1075FE1D35B47AE7F0438980F66D61Fsha3_384: f3c010b6b26cf42d0658439cd3242a4187e44053fd5b312a1f4f616b5dea081008cb20290c14a7c9c4baeceb692d72f1ep_bytes: 558bec6aff68e0844000686c78400064timestamp: 2016-12-26 16:31:55

Version Info:

Comments: CompanyName: FileDescription: FrameGrabber Microsoft退FileVersion: 1, 0, 0, 1InternalName: FrameGrabberLegalCopyright: (C) 2004LegalTrademarks: OriginalFilename: FrameGrabber.EXEPrivateBuild: ProductName: FrameGrabber ProductVersion: 1, 0, 0, 1SpecialBuild: Translation: 0x100c 0x04e3

Backdoor:Win32/Kelihos!rfn also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb BackDoor.Siggen2.1668
Cynet Malicious (score: 100)
FireEye Generic.mg.090f2bdfc3e18dd4
CAT-QuickHeal Trojan.Generic.ZZ4
ALYac Trojan.Agent.CCNG
Cylance Unsafe
VIPRE LooksLike.Win32.Crowti.b (v)
CrowdStrike win/malicious_confidence_100% (W)
K7GW Trojan ( 005017a41 )
K7AntiVirus Trojan ( 005017a41 )
BitDefenderTheta Gen:NN.ZexaF.34182.hy3@ayO6Yrib
Cyren W32/S-70a7bd7d!Eldorado
Symantec W32.Waledac
ESET-NOD32 a variant of Win32/Injector.DJHH
APEX Malicious
ClamAV Win.Malware.AppWizard-9834713-1
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Agent.CCNG
MicroWorld-eScan Trojan.Agent.CCNG
Avast Win32:InjectorX-gen [Trj]
Tencent Malware.Win32.Gencirc.10b69d49
Emsisoft Trojan.Agent.CCNG (B)
Comodo Backdoor.Win32.Kelihos.SA@6x4cmf
Zillya Trojan.Injector.Win32.454735
TrendMicro Ransom_HPCERBER.SMJA
McAfee-GW-Edition Trojan-FKTT!090F2BDFC3E1
Sophos Mal/Zbot-UR
SentinelOne Static AI – Malicious PE
Jiangmin TrojanDownloader.Agent.fkop
Avira TR/Dropper.Gen
MAX malware (ai score=80)
Antiy-AVL Trojan/Generic.ASMalwS.1DB0BB4
Microsoft Backdoor:Win32/Kelihos!rfn
ViRobot Trojan.Win32.Agent.1086007
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Agent.CCNG
AhnLab-V3 Trojan/Win32.Agentb.R192625
McAfee Trojan-FKTT!090F2BDFC3E1
VBA32 Heur.Malware-Cryptor.Hlux
Malwarebytes Malware.AI.2198961971
TrendMicro-HouseCall Ransom_HPCERBER.SMJA
Rising Malware.Obscure/Heur!1.A89E (RDMK:cmRtazr/Ibl7tk/TUuuAjYqGEq6x)
Yandex Trojan.GenAsa!MZkjOYE1b8k
Ikarus Trojan.Win32.Injector
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Generic.AC.3BC76D!tr
AVG Win32:InjectorX-gen [Trj]
Cybereason malicious.fc3e18
Panda Trj/Genetic.gen

How to remove Backdoor:Win32/Kelihos!rfn?

  • 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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