Categories: Trojan

Trojan:Win32/Koobface.K information

The Trojan:Win32/Koobface.K 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/Koobface.K virus can do?

  • Sample contains Overlay data
  • Unconventionial binary language: Russian
  • Unconventionial language used in binary resources: Russian
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Yara detections observed in process dumps, payloads or dropped files

How to determine Trojan:Win32/Koobface.K?


File Info:

name: 18812D503DEE9ACC26BA.mlwpath: /opt/CAPEv2/storage/binaries/032a8e35be5406d2b61287ad40a91eb5aa6178f36da9a432ee2a3528fd953e7dcrc32: B8A5E954md5: 18812d503dee9acc26baf353d58a5462sha1: e33364c1200b8cc79a7a68b819000b51e5d83669sha256: 032a8e35be5406d2b61287ad40a91eb5aa6178f36da9a432ee2a3528fd953e7dsha512: fe1885eb7b060e90b8d6b6c7f2ed95272e2f8125ef9e8b0553d9df858ff57dfc1dce2f0a9a8d2bebc3af38f63c229955384058c60430bc3d1738b90182e23e4cssdeep: 1536:YoYHOJZGCzsDor44jCojxkwaknRFHQAAD8lco+T1ikF0kBpUx:Yoj3z44jC4xkhkRFwP4lL+T1ikvpUxtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1B643F215EEA9481FF19B5EB200DB4FD3307B718EDF5A0BA80E4A902639748CC25D6D79sha3_384: dfa61816b4cf918d5f23201b2c628b1b0a6ad9d20fab59d0348bb500a6dce48e2ac3b4179026a702f309cb950e560ed6ep_bytes: 60be006041008dbe00b0feff57eb0b90timestamp: 2011-04-28 12:59:11

Version Info:

CompanyName: Windows ServiceFileDescription: Windows ServiceFileVersion: 1.0.0.1InternalName: NotifyLegalCopyright: Copyright (C) 2011ProductName: Windows ServiceProductVersion: 1.0.0.1Translation: 0x0419 0x04b0

Trojan:Win32/Koobface.K also known as:

Bkav W32.AIDetectMalware
Lionic Worm.Win32.Koobface.p!c
MicroWorld-eScan Gen:Variant.Ransom.Nemty.17
FireEye Generic.mg.18812d503dee9acc
Skyhigh GenericRXKI-GC!68AD72DFBF91
ALYac Gen:Variant.Ransom.Nemty.17
Cylance unsafe
Zillya Worm.Koobface.Win32.6766
Sangfor Trojan.Win32.Save.a
K7AntiVirus Riskware ( 0040eff71 )
Alibaba Worm:Win32/Koobface.ae347505
K7GW Riskware ( 0040eff71 )
Cybereason malicious.03dee9
BitDefenderTheta AI:Packer.DB2C6E951F
Symantec ML.Attribute.HighConfidence
Elastic malicious (moderate confidence)
ESET-NOD32 a variant of Win32/Spammer.Agent.J
APEX Malicious
TrendMicro-HouseCall TROJ_KOOBFACE_000000c.TOMA
ClamAV Win.Worm.Koobface-365
Kaspersky Net-Worm.Win32.Koobface.babd
BitDefender Gen:Variant.Ransom.Nemty.17
NANO-Antivirus Trojan.Win32.Koobface.kxzvx
Avast Win32:Downloader-GQF [Trj]
Tencent Malware.Win32.Gencirc.13c1b5fd
Emsisoft Gen:Variant.Ransom.Nemty.17 (B)
F-Secure Trojan.TR/Spy.Gen
DrWeb Win32.HLLW.Facebook.989
VIPRE Gen:Variant.Ransom.Nemty.17
TrendMicro TROJ_KOOBFACE_000000c.TOMA
Trapmine malicious.high.ml.score
Sophos Mal/Generic-S
SentinelOne Static AI – Malicious PE
Jiangmin Worm/Koobface.bof
Google Detected
Avira TR/Spy.Gen
Varist W32/Koobface.R.gen!Eldorado
Antiy-AVL Worm[Net]/Win32.Koobface
Kingsoft Win32.Troj.Undef.a
Microsoft Trojan:Win32/Koobface.K
Xcitium TrojWare.Win32.Agent.tmbl@3z144o
Arcabit Trojan.Ransom.Nemty.17
ViRobot Worm.Win32.A.Net-Koobface.57864.A[UPX]
ZoneAlarm Net-Worm.Win32.Koobface.babd
GData Gen:Variant.Ransom.Nemty.17
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Jorik.R4582
McAfee Artemis!18812D503DEE
MAX malware (ai score=100)
VBA32 BScope.Worm.Koobface
Panda Trj/Genetic.gen
Rising Trojan.Koobface!8.CD6 (TFE:5:1oO4FbbcIeP)
Yandex Worm.Koobface!uqicOsPUL/c
Ikarus Trojan.Win32.Jorik
MaxSecure Trojan.Malware.2076871.susgen
Fortinet W32/KoobFace.IED!tr
AVG Win32:Downloader-GQF [Trj]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (W)
alibabacloud Worm[net]:Win/Koobface.babd

How to remove Trojan:Win32/Koobface.K?

  • 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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