YARA · SEKOIA.IO Community
SEKOIA_Loader_Win_Abcloader
Detect ABCloader
- Author
- Sekoia.io
- Date
- 2024-08-19
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detect ABCloader
Targets: Windows PE.
It defines 2 patterns (2 text, 0 hex, 0 regex). YARA modules used: pe, hash.
Summary generated from the rule's metadata and condition.
Rule source
Includes the imports needed to compile it on its own.
import "pe"
import "hash"
rule SEKOIA_Loader_Win_Abcloader : FILE
{
meta:
= "Detect ABCloader"
= "Sekoia.io"
= "c286ce75-a041-478e-a567-4bf1d5e66c01"
= "2024-08-19"
= "2024-12-19"
= "https://nsfocusglobal.com/new-apt-group-actor240524-a-closer-look-at-its-cyber-tactics-against-azerbaijan-and-israel/"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/loader_win_abcloader.yar#L4-L28"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "0d1dca5eaad49c2dbd979e1bf0b5f8d0"
= "9a640889e82407b06c546fea15be668f"
= "64d171d31c2f03ac18dde61d5b57fba91448045404b0ff619fb8cd437a561b1f"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$ = "qSii.LI4"
$ = "Cabinet.dll"
condition:
uint16be( 0 ) == 0x4d5a and all of them or pe.imphash ( ) == "45c6b272631aa9e0c4b2ba675699b803" or hash.md5 ( pe.rich_signature.clear_data ) == "b33158757dc039859e272f4528e10e80"
}
Strings (2 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $ | text | "qSii.LI4" | |
| $ | text | "Cabinet.dll" |
Condition
uint16be( 0 ) == 0x4d5a and all of them or pe.imphash ( ) == "45c6b272631aa9e0c4b2ba675699b803" or hash.md5 ( pe.rich_signature.clear_data ) == "b33158757dc039859e272f4528e10e80"In plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- All patterns in the rule must match.
- Uses the pe module.
- Uses the hash module.
- Compares a hash of the file or a part of it.
- Checks the PE import hash (imphash).
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
Sample hashes
Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).
- 0d1dca5eaad49c2dbd979e1bf0b5f8d0
- 9a640889e82407b06c546fea15be668f
Licence & attribution
Author: Sekoia.io
Source repository: SEKOIA.IO Community @ a438a5901a
Licence: Detection Rule License 1.1 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: c286ce75-a041-478e-a567-4bf1d5e66c01
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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