YARA · SEKOIA.IO Community
SEKOIA_Dropper_Win_Konni_Cab
Detect the CAB files used to drop the KONNI malware
- Author
- Sekoia.io
- Date
- 2023-09-26
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detect the CAB files used to drop the KONNI malware
Associated malware family: Konni.
It defines 4 patterns (4 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
dropper-win-konni-cab.yarDetection Rule License 1.1
rule SEKOIA_Dropper_Win_Konni_Cab : FILE
{
meta:
= "Detect the CAB files used to drop the KONNI malware"
= "Sekoia.io"
= "87a209d5-667a-4a81-837a-660ab98c33c8"
= "2023-09-26"
= "2024-12-19"
= "https://github.com/SEKOIA-IO/Community"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/dropper_win_konni_cab.yar#L1-L18"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "b49bb875d5ddd4b815da5bd184ec7f1d23cfb7ad316760c9a9876607245d0a95"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$magic = "MSCF"
$file2 = "check.bat"
$file3 = "wpnprv64.dll"
$file4 = "wpnprv32.dll"
condition:
$magic at 0 and all of ( $file* )
}
Strings (4 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $magic | text | "MSCF" | |
| $file2 | text | "check.bat" | |
| $file3 | text | "wpnprv64.dll" | |
| $file4 | text | "wpnprv32.dll" |
Condition
$magic at 0 and all of ( $file* )In plain words (Heuristic)
- All patterns in ( $file* ) must match.
- Pattern $magic must be found at offset 0.
Test this rule in your browser
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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
References
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: 87a209d5-667a-4a81-837a-660ab98c33c8
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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