Categories: SpyTrojan

What is “Trojan-Spy.Win32.Zbot.bfok”?

The Trojan-Spy.Win32.Zbot.bfok 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-Spy.Win32.Zbot.bfok virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • 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

How to determine Trojan-Spy.Win32.Zbot.bfok?


File Info:

name: C8DD66AE05C705676AED.mlwpath: /opt/CAPEv2/storage/binaries/5896a7165eebc3b744c7ba85919870fe3aa78959479188d97a31bcce9ae37e94crc32: 5ED3BBC4md5: c8dd66ae05c705676aed1caa88b3afdbsha1: b93c0e4aa98a1783415509daf035d6123377dedcsha256: 5896a7165eebc3b744c7ba85919870fe3aa78959479188d97a31bcce9ae37e94sha512: 8aa045aa2d9c58a8ffd67578460e9cb68c7e41f61943a4994cc1509555745d6556045b094566200a7fc4b7ca7a0bf4b211d98b40bf00c3c9745dc78a72023620ssdeep: 3072:ZjbkeanQ4spU8rfUjo3sP6MpeRMMG3Iv2juVIdyraCNWR1:+ean5ojOoDMpAMHwFIErzN2type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T18CD3022BF7852C71EBEC2476A2C6193DE3A077B9DBB45023997D2F4540A678323E0685sha3_384: 877091dd8ed5c03657cfca98c74c9dcae06fb27d4d44f1ce37e1b10e91bdefcfc9970386b9e4b33108e8171e303b7e82ep_bytes: 60be150072008dbeeb0fceff5783cdfftimestamp: 2008-12-28 17:14:57

Version Info:

CompanyName: Qwwyvukm GruocuFileDescription: Qwwyvukm Exgtjvu HdiilgqtFileVersion: 122, 27, 43, 114InternalName: QwwyvukmLegalCopyright: Copyright © Qwwyvukm Gruocu 2003-2011OriginalFilename: Qwwyvukm.exeProductName: Qwwyvukm Exgtjvu HdiilgqtProductVersion: 45, 71, 43, 123Translation: 0x0409 0x04e4

Trojan-Spy.Win32.Zbot.bfok also known as:

Bkav W32.MosquitoQKB.Fam.Trojan
Lionic Trojan.Win32.Zbot.l!c
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
FireEye Generic.mg.c8dd66ae05c70567
McAfee W32/Pinkslipbot.gen.af
Zillya Trojan.Zbot.Win32.32048
Sangfor Trojan.Win32.Spy.Zbot
K7AntiVirus Trojan ( f1000f011 )
BitDefender Gen:Heur.VIZ.2
K7GW Trojan ( f1000f011 )
Cybereason malicious.e05c70
VirIT Trojan.Win32.Crypt.AGOG
Cyren W32/Zbot.CN.gen!Eldorado
Symantec W32.Qakbot!gen5
ESET-NOD32 Win32/Spy.Zbot.YW
APEX Malicious
Kaspersky Trojan-Spy.Win32.Zbot.bfok
Alibaba TrojanSpy:Win32/Pinkslipbot.0477b965
NANO-Antivirus Trojan.Win32.Zbot.cgruz
ViRobot Trojan.Win32.Cryptic.139776
MicroWorld-eScan Gen:Heur.VIZ.2
Rising Trojan.Kryptik!8.8 (CLOUD)
Ad-Aware Gen:Heur.VIZ.2
Sophos Mal/Generic-R + Troj/ZBot-AMR
Comodo Malware@#1tnumuyz9iayb
DrWeb Trojan.Packed.21467
VIPRE Trojan.Win32.Kryptik.mcf (v)
TrendMicro BKDR_QAKBOT.SMG
Emsisoft Gen:Heur.VIZ.2 (B)
SentinelOne Static AI – Malicious PE
Jiangmin TrojanSpy.Zbot.bcmx
Avira TR/Spy.Zbot.bkn
MAX malware (ai score=100)
Antiy-AVL Trojan/Generic.ASMalwS.184BF38
Microsoft PWS:Win32/Zbot!ml
GData Gen:Heur.VIZ.2
AhnLab-V3 Trojan/Win32.Zbot.R3496
BitDefenderTheta Gen:NN.ZexaF.34212.imKfaaZJAacc
ALYac Backdoor.Zbot.al
VBA32 Trojan.Zeus.EA.0999
Cylance Unsafe
Panda Bck/Qbot.AO
TrendMicro-HouseCall BKDR_QAKBOT.SMG
Tencent Win32.Trojan-spy.Zbot.Tbir
Yandex Trojan.GenAsa!uZ2LKbecRJ8
Ikarus Net-Worm.Win32.Kolab
MaxSecure Trojan.Malware.1721151.susgen
Fortinet W32/Kryptik.WCH!tr
AVG Win32:Spyware-gen [Spy]
Avast Win32:Spyware-gen [Spy]
CrowdStrike win/malicious_confidence_60% (W)

How to remove Trojan-Spy.Win32.Zbot.bfok?

  • 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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