Categories: Malware

Win32/Packed.Themida.IDI malicious file

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

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • NtSetInformationThread: attempt to hide thread from debugger
  • Dynamic (imported) function loading detected
  • Expresses interest in specific running processes
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • 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.
  • Executable file is packed/obfuscated with MPRESS
  • Authenticode signature is invalid
  • Checks for the presence of known windows from debuggers and forensic tools
  • Created a process from a suspicious location
  • The following process appear to have been packed with Themida: 47983073606AAFB9E55B.mlw
  • Checks the version of Bios, possibly for anti-virtualization
  • Detects VirtualBox through the presence of a registry key

How to determine Win32/Packed.Themida.IDI?


File Info:

name: 47983073606AAFB9E55B.mlwpath: /opt/CAPEv2/storage/binaries/4d02c5c953215e13a70ef636496a9c9cad22993813d93b355dbc91c99e0d43a2crc32: DBEA35C7md5: 47983073606aafb9e55b72700febace0sha1: 498d95abdfd25f3c736c81b0448420047c964835sha256: 4d02c5c953215e13a70ef636496a9c9cad22993813d93b355dbc91c99e0d43a2sha512: c621df994dc7aff1d771af45aae6dce6e5daacbde703e430b226648c7936fb5caa0d06ca11f43f900cd1d9787614fc9bd4438c133ff3c7617945e15c60b0bc2fssdeep: 49152:gRJ0OJmBYRiFbiX8UXpNFCVnpFUho753qao:gRJ0O+YRiFmXZ4pFUhS6btype: PE32 executable (console) Intel 80386, for MS Windowstlsh: T14E8533A7D7746B62C00698BBA2136D0796802EDD8EA59F3B631C41CDEE25383DF77640sha3_384: 34722aa4e7ebf72f073cdf084b0c8f28f8759e8f103637bad6d0c923cfa663515915c7894a6fc1b1d8d1313d58e48626ep_bytes: 60e80000000058055a0b00008b3003f0timestamp: 2022-03-03 13:24:52

Version Info:

0: [No Data]

Win32/Packed.Themida.IDI also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Stealer.l!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Midie.111100
FireEye Generic.mg.47983073606aafb9
ALYac Gen:Variant.Midie.111100
Cylance Unsafe
Sangfor Suspicious.Win32.Save.a
Alibaba TrojanSpy:Win32/Stealer.c86b23d7
CrowdStrike win/malicious_confidence_70% (W)
Symantec ML.Attribute.HighConfidence
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/Packed.Themida.IDI
TrendMicro-HouseCall TROJ_GEN.R002H09E922
Kaspersky Trojan-Spy.Win32.Stealer.byzv
BitDefender Gen:Variant.Midie.111100
Avast Win32:Trojan-gen
Ad-Aware Gen:Variant.Midie.111100
Emsisoft Gen:Variant.Midie.111100 (B)
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
Sophos Mal/Generic-S
GData Gen:Variant.Midie.111100
Webroot W32.Stealer.byzv
Avira TR/Spy.Stealer.sylxd
Microsoft Trojan:Win32/Sabsik.FL.B!ml
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win.AutoRun.R491363
McAfee Artemis!47983073606A
MAX malware (ai score=81)
VBA32 BScope.Trojan.Sabsik.FL
Malwarebytes Spyware.PasswordStealer
APEX Malicious
Rising Stealer.Agent!8.C2 (CLOUD)
SentinelOne Static AI – Malicious PE
Fortinet W32/PossibleThreat
AVG Win32:Trojan-gen

How to remove Win32/Packed.Themida.IDI?

  • 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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