Categories: Malware

What is “Win32/Packed.Themida.AAF”?

The Win32/Packed.Themida.AAF 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 Win32/Packed.Themida.AAF virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Expresses interest in specific running processes
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • Checks for the presence of known windows from debuggers and forensic tools
  • The following process appear to have been packed with Themida: rundll32.exe
  • Network activity detected but not expressed in API logs
  • Checks for the presence of known devices from debuggers and forensic tools
  • Detects the presence of Wine emulator via registry key
  • Anomalous binary characteristics

How to determine Win32/Packed.Themida.AAF?


File Info:

crc32: C7A7E074md5: ceeedc9a35c5f2a9a0bbb59bf4f1a4a6name: CEEEDC9A35C5F2A9A0BBB59BF4F1A4A6.mlwsha1: 35876b8115ee49d492750562bc28f70e5a006abbsha256: ba00ecc3e6735b0c562f55269e0e23042c0809ae55b04bbaeab4c2173bc77db3sha512: 668336a946d80ecb1f0cea6c38ed8fac6dafd52093d0e008a4744f66900b31e5c773e624a84084cc4e6e99011da044eec528541bead87d9bdd1f613760436ea5ssdeep: 24576:aSEyKboCJuQqixqqnhD1wi5zBlQn0YrgkFLKSF0GU:xKboCJ7qWnhDiylgYKx/type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: InternalName: FileVersion: 9.10.21.1CompanyName: LegalTrademarks: Comments: ProductName: ProductVersion: 9.10.21.1FileDescription: OriginalFilename: Translation: 0x0804 0x03a8

Win32/Packed.Themida.AAF also known as:

Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
McAfee Artemis!CEEEDC9A35C5
Cylance Unsafe
CrowdStrike win/malicious_confidence_60% (D)
Alibaba VirTool:Win32/Obfuscator.9fba6ed2
K7GW Trojan ( 7000001c1 )
K7AntiVirus Trojan ( 7000001c1 )
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Packed.Themida.AAF
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky UDS:DangerousObject.Multi.Generic
NANO-Antivirus Trojan.Win32.Obfuscate.ctfiyx
Tencent Win32.Trojan.Generic.Tdzq
Sophos Mal/Generic-R + Mal/Behav-374
Comodo Malware@#3658opprfew3c
BitDefenderTheta Gen:NN.ZedlaF.34796.aH8aauHOMCkb
VIPRE VirTool.Win32.Obfuscator.a
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
FireEye Generic.mg.ceeedc9a35c5f2a9
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan/Generic.fgc
Webroot W32.Malware.Gen
Avira TR/Obfuscate.XZ.3636
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft VirTool:Win32/Obfuscator.XZ
Gridinsoft Trojan.Heur!.038101A8
ZoneAlarm HEUR:Trojan.Win32.Generic
VBA32 BScope.Trojan.Packed
MAX malware (ai score=100)
Panda Trj/CI.A
Yandex Trojan.Packed!OPSnvp0yT6E
Ikarus Trojan.Win32.Themida
Fortinet PossibleThreat
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Packed.Themida.AAF?

  • 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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