Categories: Malware

Zusy.83264 removal guide

The Zusy.83264 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Zusy.83264 virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • 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
  • Enumerates running processes
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Uses Windows utilities for basic functionality
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Code injection with CreateRemoteThread in a remote process
  • Deletes its original binary from disk
  • Behavioural detection: Injection (inter-process)
  • Behavioural detection: Injection with CreateRemoteThread in a remote process
  • Collects and encrypts information about the computer likely to send to C2 server
  • Collects information to fingerprint the system

How to determine Zusy.83264?


File Info:

name: 1E35A70F21B814442E41.mlwpath: /opt/CAPEv2/storage/binaries/3e47cb2436526c1bf52f7dd5159d6c04920208c768cc8e71b800be2c1343ba1ecrc32: 1CE994F0md5: 1e35a70f21b814442e418d504c1529b8sha1: 18514cd3cb3628cee05d6b4f7dc71b995bc10e44sha256: 3e47cb2436526c1bf52f7dd5159d6c04920208c768cc8e71b800be2c1343ba1esha512: 8d3e6db941297a3f887227175f9f339bcec12bf6a608037303b52e5a014c206a1a38605c90e36fdf1bee6a397b942482bb42e0e2196d46f3907222c73f064ccassdeep: 6144:QzabjprmeAULPmVZixSHSYsHAHR42NQxfVlBrPf:kabViUbmVZrHSXA42NUVnrHtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1C23412A77B0D5B40D80EC9786A538B34F3A3A5E6B7400A0F67780CAC667A3477E9535Csha3_384: 6e056e923402f5dc33a33f3a415fccd2f0cacd19ec8ebdc9402ea3ca89c122f92a7c3018f35ecce17b80dfb65fc655acep_bytes: 558bec6aff6890014000680490400064timestamp: 2014-02-13 18:33:57

Version Info:

Comments: CompanyName: FileDescription: AprioriFileVersion: 1, 0, 0, 1InternalName: AprioriLegalCopyright: Copyright ? 2014LegalTrademarks: OriginalFilename: Apriori.exePrivateBuild: ProductName: AprioriProductVersion: 1, 0, 0, 1SpecialBuild: Translation: 0x0804 0x04b0

Zusy.83264 also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Zbot.l!c
tehtris Generic.Malware
DrWeb Trojan.Betabot.3
MicroWorld-eScan Gen:Variant.Zusy.83264
FireEye Generic.mg.1e35a70f21b81444
CAT-QuickHeal TrojanPWS.Zbot.AP4
ALYac Gen:Variant.Zusy.83264
Malwarebytes Trojan.Crypt.NKN
Sangfor Trojan.Win32.Generic.8
K7AntiVirus Trojan ( 004e4a7c1 )
K7GW Trojan ( 004e4a7c1 )
Cybereason malicious.f21b81
BitDefenderTheta Gen:NN.ZexaF.34606.oq3@aGInSXkH
VirIT Trojan.Win32.Generic.DOW
Symantec Trojan.Gen.MBT
ESET-NOD32 a variant of Win32/Injector.AYAP
TrendMicro-HouseCall TROJ_SPNR.25FJ14
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Zusy.83264
NANO-Antivirus Trojan.Win32.Zbot.ctpsko
Avast Win32:Zbot-SQV [Trj]
Rising Backdoor.Hlux!8.159 (RDMK:cmRtazqlgU49Eh3xRCGcVcqeCLtC)
Ad-Aware Gen:Variant.Zusy.83264
Emsisoft Gen:Variant.Zusy.83264 (B)
Comodo TrojWare.Win32.Spy.Zbot.RMUS@57wmlt
Zillya Trojan.Zbot.Win32.148745
TrendMicro TROJ_SPNR.25FJ14
McAfee-GW-Edition Dropper-FJW!1E35A70F21B8
Sophos Mal/Generic-S
Ikarus Trojan-Downloader.Win32.Upatre
Jiangmin TrojanSpy.Zbot.ebym
Webroot Trojan.Dropper.Gen
Avira TR/Dropper.Gen
MAX malware (ai score=82)
Antiy-AVL Trojan/Generic.ASMalwS.8167F4
Kingsoft Win32.Troj.Zbot.ro.(kcloud)
SUPERAntiSpyware Trojan.Agent/Gen-Injector
GData Gen:Variant.Zusy.83264
Cynet Malicious (score: 100)
AhnLab-V3 Spyware/Win32.Zbot.R98289
McAfee Dropper-FJW!1E35A70F21B8
TACHYON Trojan-Spy/W32.ZBot.240441
VBA32 BScope.TrojanPSW.Panda
APEX Malicious
Tencent Malware.Win32.Gencirc.10c7a711
Yandex TrojanSpy.Zbot!n3sF/aLjU3Y
SentinelOne Static AI – Malicious PE
Fortinet W32/Kryptik.WIF!tr
AVG Win32:Zbot-SQV [Trj]
Panda Trj/Zbot.M
CrowdStrike win/malicious_confidence_100% (W)

How to remove Zusy.83264?

  • 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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