Categories: Worm

Worm:Win32/Koobface.I malicious file

The Worm:Win32/Koobface.I 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 Worm:Win32/Koobface.I virus can do?

  • Uses Windows utilities for basic functionality
  • 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
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Creates a copy of itself
  • Touches a file containing cookies, possibly for information gathering
  • Yara detections observed in process dumps, payloads or dropped files

How to determine Worm:Win32/Koobface.I?


File Info:

name: 9F25DD682FA13B7705F0.mlwpath: /opt/CAPEv2/storage/binaries/ef1adfc3d0439a482d9c8c70f7a9515ade01962e43964bbf54c47ea2c665b435crc32: E9C686EAmd5: 9f25dd682fa13b7705f0ba402e42fd86sha1: 4fd5917125c850f367cb85801a8a1a0262ed1f93sha256: ef1adfc3d0439a482d9c8c70f7a9515ade01962e43964bbf54c47ea2c665b435sha512: 4a96552a6bede02ac7df273b589be154c7725a65ccc8a1ea179e97a4984923d3025ae076035f6d1146b62bdb3f77559e30ae6b61db898f1ba18ef22e7e6b5eafssdeep: 768:9tz6vkZzk/9tU0eDd3p3r7uCDO6WEQ3ZxmkU:THQneDdZ3Hu6Xbtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1B1035C5FBE280462F554D5702374993BEBBF9D371E8880CBEBC19667E1B8F42D819202sha3_384: 8c439c0ddf13aa88d9c0b58c36be04d37b579a7ffd457d5c287aafc0febe9b66da5cf8d5f9f75d186f8ffe4e61683ef7ep_bytes: 558bec6aff6808524000689647400064timestamp: 2009-04-03 13:38:38

Version Info:

0: [No Data]

Worm:Win32/Koobface.I also known as:

Bkav W32.AIDetectMalware
Lionic Trojan.Win32.Agent2.trkB
Elastic malicious (moderate confidence)
DrWeb Trojan.DownLoad.33659
MicroWorld-eScan Win32.Worm.Koobface.BD
FireEye Generic.mg.9f25dd682fa13b77
CAT-QuickHeal Worm.Koobface.16994
Skyhigh BehavesLike.Win32.Generic.nm
McAfee W32/Koobface.worm
Malwarebytes Malware.AI.3953376377
Zillya Worm.Koobface.Win32.6085
Sangfor Suspicious.Win32.Save.ins
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Starter.ali2000005
K7GW Trojan ( 004bcce41 )
K7AntiVirus Trojan ( 004bcce41 )
BitDefenderTheta AI:Packer.16E2AAA21F
VirIT Worm.Win32.Generic.FI
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Koobface.FX
APEX Malicious
TrendMicro-HouseCall WORM_KOOBFACE.X
ClamAV Win.Worm.Koobface-25
Kaspersky Trojan.Win32.Agent2.hgm
BitDefender Win32.Worm.Koobface.BD
NANO-Antivirus Trojan.Win32.Agent.dxqnbi
Avast Win32:Koobface-C [Wrm]
Tencent Win32.Trojan.Agent2.Gwnw
Emsisoft Win32.Worm.Koobface.BD (B)
F-Secure Trojan.TR/Agent.goen
VIPRE Win32.Worm.Koobface.BD
TrendMicro WORM_KOOBFACE.X
Trapmine malicious.high.ml.score
Sophos W32/Koobfa-Gen
Ikarus Net-Worm.Win32.Koobface
Jiangmin Trojan/Agent.cbzk
Webroot W32.Malware.Gen
Google Detected
Avira TR/Agent.goen
Varist W32/Koobface.B.gen!Eldorado
Antiy-AVL Trojan/Win32.Agent2
Kingsoft malware.kb.a.1000
Microsoft Worm:Win32/Koobface.I
Xcitium Backdoor.Win32.Lithium.~F@92k27
Arcabit Win32.Worm.Koobface.BD
ZoneAlarm Trojan.Win32.Agent2.hgm
GData Win32.Worm.Koobface.BD
Cynet Malicious (score: 100)
AhnLab-V3 Worm/Win32.Koobface.R2824
Acronis suspicious
VBA32 Trojan.Win32.Koobface
ALYac Win32.Worm.Koobface.BD
MAX malware (ai score=99)
Cylance unsafe
Panda W32/Koobface.AV.worm
Rising Worm.Koobface!1.6948 (CLASSIC)
Yandex Worm.Koobface.Gen.2
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.574572.susgen
Fortinet W32/Koobface.KK!worm
AVG Win32:Koobface-C [Wrm]
Cybereason malicious.82fa13
DeepInstinct MALICIOUS
alibabacloud Worm

How to remove Worm:Win32/Koobface.I?

  • 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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Paul Valéry

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