YARA · Malpedia signator rules
MALPEDIA_Win_Cabart_Auto
autogenerated rule brought to you by yara-signator
- Author
- Felix Bilstein - yara-signator at cocacoding dot com
- Date
- 2026-05-04
- Modified
- 2026-05-18
- Score / Quality
- 75 / 75
What this rule detects
autogenerated rule brought to you by yara-signator
Associated malware family: Cabart.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-cabart-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Cabart_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "98977e9f-b2c4-56e6-a102-a9eb5ae50cfb"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.cabart"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.cabart_auto.yar#L1-L121"
= "N/A"
= "53d84c0bbb56596faaf50bbda94ff2ce8efa151937066e2d9cd54eca8a35fc2c"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 57 be04010000 8d85d8fbffff 56 }
$sequence_1 = { ff15???????? ff35???????? 83c712 68???????? 56 57 }
$sequence_2 = { 895df8 ff15???????? 8b45f8 8d0c30 3bcf 7732 }
$sequence_3 = { 761e 8b450c 8930 8b4510 eb16 }
$sequence_4 = { 8d85fcfeffff 68???????? 6804010000 50 ff15???????? 83c410 6a10 }
$sequence_5 = { 3bf3 0f8499000000 53 53 53 53 }
$sequence_6 = { ff15???????? 85c0 750a 68ee030000 }
$sequence_7 = { 6a02 57 6a01 6800000040 8d85fcfbffff }
$sequence_8 = { 6a04 bf00100000 57 bb00020000 53 6a00 ffd6 }
$sequence_9 = { 56 8b35???????? 8bd8 33c0 57 8bd1 85c9 }
condition:
7 of them and filesize < 32768
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 57 be04010000 8d85d8fbffff 56 } | |
| $sequence_1 | hex | { ff15???????? ff35???????? 83c712 68???????? 56 57 } | |
| $sequence_2 | hex | { 895df8 ff15???????? 8b45f8 8d0c30 3bcf 7732 } | |
| $sequence_3 | hex | { 761e 8b450c 8930 8b4510 eb16 } | |
| $sequence_4 | hex | { 8d85fcfeffff 68???????? 6804010000 50 ff15???????? 83c410 6a10 } | |
| $sequence_5 | hex | { 3bf3 0f8499000000 53 53 53 53 } | |
| $sequence_6 | hex | { ff15???????? 85c0 750a 68ee030000 } | |
| $sequence_7 | hex | { 6a02 57 6a01 6800000040 8d85fcfbffff } | |
| $sequence_8 | hex | { 6a04 bf00100000 57 bb00020000 53 6a00 ffd6 } | |
| $sequence_9 | hex | { 56 8b35???????? 8bd8 33c0 57 8bd1 85c9 } |
Condition
7 of them and filesize < 32768In plain words (Heuristic)
- The file must be smaller than 32768 (a cheap guard that skips large files).
- At least 7 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.
Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
Licence & attribution
Author: Felix Bilstein - yara-signator at cocacoding dot com
Source repository: Malpedia signator rules @ c901f97b7d
Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 98977e9f-b2c4-56e6-a102-a9eb5ae50cfb
Metadata
| version | 1 |
|---|---|
| tool | yara-signator v0.6.0 |
| signator_config | callsandjumps;datarefs;binvalue |
| malpedia_rule_date | 20260422 |
| malpedia_hash | a182e35da64e6d71cb55f125c4d4225196523f14 |
| malpedia_version | 20260504 |
| malpedia_license | CC BY-SA 4.0 |
| malpedia_sharing | TLP:WHITE |
Tags:FILE
Related rules
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04