YARA · Malpedia signator rules
MALPEDIA_Win_Mutabaha_Auto
autogenerated rule brought to you by yara-signator
MalwareMutabahaMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
- 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: Mutabaha.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-mutabaha-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Mutabaha_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "17acaff4-0527-5476-a4b8-44d527c49c3a"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.mutabaha"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.mutabaha_auto.yar#L1-L134"
= "N/A"
= "7bd797e29f72979881873637319f3de377a3b639beda6274238d17fac09b0b70"
= 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 = { 50 8d4da8 e8???????? 837dbc08 8d45a8 8d8d78ffffff 0f4345a8 }
$sequence_1 = { 50 e8???????? 83f8ff 743b 8b7dd4 90 8b5f10 }
$sequence_2 = { 8954c804 8b06 031cc8 1354c804 41 3b4e14 72e7 }
$sequence_3 = { 50 e8???????? 83c410 ba00020000 68feffff7f ff35???????? 51 }
$sequence_4 = { 8bc8 e8???????? 85c0 7812 8b45f0 5f 5e }
$sequence_5 = { 3b45ec 75cb 85d2 75c7 85ff 7c62 7f04 }
$sequence_6 = { e8???????? c7465400000000 8bc6 8b4df4 64890d00000000 59 5e }
$sequence_7 = { 83c414 8d85f0fbffff 68???????? ffb5f0e5ffff 68???????? 6800020000 50 }
$sequence_8 = { 894de8 8b0490 8b55e0 3bc6 7324 8bc8 c1e105 }
$sequence_9 = { 668945cc e8???????? 8d55cc c645fc01 8d4db4 e8???????? 68???????? }
condition:
7 of them and filesize < 1220608
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 50 8d4da8 e8???????? 837dbc08 8d45a8 8d8d78ffffff 0f4345a8 } | |
| $sequence_1 | hex | { 50 e8???????? 83f8ff 743b 8b7dd4 90 8b5f10 } | |
| $sequence_2 | hex | { 8954c804 8b06 031cc8 1354c804 41 3b4e14 72e7 } | |
| $sequence_3 | hex | { 50 e8???????? 83c410 ba00020000 68feffff7f ff35???????? 51 } | |
| $sequence_4 | hex | { 8bc8 e8???????? 85c0 7812 8b45f0 5f 5e } | |
| $sequence_5 | hex | { 3b45ec 75cb 85d2 75c7 85ff 7c62 7f04 } | |
| $sequence_6 | hex | { e8???????? c7465400000000 8bc6 8b4df4 64890d00000000 59 5e } | |
| $sequence_7 | hex | { 83c414 8d85f0fbffff 68???????? ffb5f0e5ffff 68???????? 6800020000 50 } | |
| $sequence_8 | hex | { 894de8 8b0490 8b55e0 3bc6 7324 8bc8 c1e105 } | |
| $sequence_9 | hex | { 668945cc e8???????? 8d55cc c645fc01 8d4db4 e8???????? 68???????? } |
Condition
7 of them and filesize < 1220608In plain words (Heuristic)
- The file must be smaller than 1220608 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
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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: 17acaff4-0527-5476-a4b8-44d527c49c3a
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
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