YARA · ditekSHen detection
DITEKSHEN_MALWARE_Win_Dllhijacker01
Hunt for VSNTAR21 / DllHijacker01 IronTiger / LuckyMouse / APT27 malware
- Author
- ditekSHen
- Date
- 2020-11-06
- Modified
- 2024-11-01
- Score / Quality
- 75 / 75
What this rule detects
Hunt for VSNTAR21 / DllHijacker01 IronTiger / LuckyMouse / APT27 malware
Associated malware family: Dllhijacker01.
Targets: Windows PE.
It defines 9 patterns (9 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
rule DITEKSHEN_MALWARE_Win_Dllhijacker01 : FILE
{
meta:
= "Hunt for VSNTAR21 / DllHijacker01 IronTiger / LuckyMouse / APT27 malware"
= "ditekSHen"
= "0a858058-310a-5b1c-a6fe-abdec7b25abe"
= "2020-11-06"
= "2024-11-01"
= "https://github.com/ditekshen/detection"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L5432-L5448"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
= "48535c0bb5342e2f91ac9d015c761d8d543b122dd3cc08b7029631fcf3037bfb"
= 75
= 75
= "FILE"
strings:
$s1 = "libvlc_add_intf" fullword ascii
$s2 = "libvlc_dllonexit" fullword ascii
$s3 = "libvlc_getmainargs" fullword ascii
$s4 = "libvlc_initenv" fullword ascii
$s5 = "libvlc_set_app_id" fullword ascii
$s6 = "libvlc_set_app_type" fullword ascii
$s7 = "libvlc_set_user_agent" fullword ascii
$s8 = "libvlc_wait" fullword ascii
$s9 = "dll.dll" fullword ascii
condition:
uint16( 0 ) == 0x5a4d and 6 of them
}
Strings (9 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "libvlc_add_intf" | fullword ascii |
| $s2 | text | "libvlc_dllonexit" | fullword ascii |
| $s3 | text | "libvlc_getmainargs" | fullword ascii |
| $s4 | text | "libvlc_initenv" | fullword ascii |
| $s5 | text | "libvlc_set_app_id" | fullword ascii |
| $s6 | text | "libvlc_set_app_type" | fullword ascii |
| $s7 | text | "libvlc_set_user_agent" | fullword ascii |
| $s8 | text | "libvlc_wait" | fullword ascii |
| $s9 | text | "dll.dll" | fullword ascii |
Condition
uint16( 0 ) == 0x5a4d and 6 of themIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- At least 6 patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
References
Licence & attribution
Author: ditekSHen
Source repository: ditekSHen detection @ e76c93dcde
Licence: BSD 2-Clause License (repository licence)
Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 0a858058-310a-5b1c-a6fe-abdec7b25abe
Tags:FILE
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