YARA · Malpedia signator rules
MALPEDIA_Win_Quickmute_Auto
autogenerated rule brought to you by yara-signator
MalwareQuickmuteMalpedia 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: Quickmute.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-quickmute-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Quickmute_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "5c849e44-acd1-51b9-b726-d3f916023f4f"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.quickmute"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.quickmute_auto.yar#L1-L117"
= "N/A"
= "4b32b83d8e038504eeda8b7b08cc8cf59bd3c2beb1dc25544e09aed36b939cec"
= 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 = { c78550ffffff7265616c c78554ffffff6c6f6300 391d???????? 750f 8d8550ffffff 50 }
$sequence_1 = { 6a01 6a00 ff15???????? 8906 85c0 7507 b802000000 }
$sequence_2 = { 0f87bd010000 8d45ec 50 ff15???????? }
$sequence_3 = { c645b200 750c 8d55a0 52 }
$sequence_4 = { eb2e 33c0 ebaa f6c102 7407 }
$sequence_5 = { a3???????? c78568ffffff63616c6c 66c7856cffffff6f63 889d6effffff 391d???????? 750f }
$sequence_6 = { 7409 be01000000 d3e6 0bd6 49 }
$sequence_7 = { 889d17ffffff 66c78518ffffff6d6f c6851affffff74 889d1bffffff 66c7851cffffff5468 }
$sequence_8 = { 8b4508 ff34c550c04000 ff15???????? 5d c3 6a0c }
$sequence_9 = { c78554ffffff77007300 c78558ffffff20004e00 c7855cffffff54002000 c78560ffffff36002e00 c78564ffffff33003b00 }
condition:
7 of them and filesize < 146432
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c78550ffffff7265616c c78554ffffff6c6f6300 391d???????? 750f 8d8550ffffff 50 } | |
| $sequence_1 | hex | { 6a01 6a00 ff15???????? 8906 85c0 7507 b802000000 } | |
| $sequence_2 | hex | { 0f87bd010000 8d45ec 50 ff15???????? } | |
| $sequence_3 | hex | { c645b200 750c 8d55a0 52 } | |
| $sequence_4 | hex | { eb2e 33c0 ebaa f6c102 7407 } | |
| $sequence_5 | hex | { a3???????? c78568ffffff63616c6c 66c7856cffffff6f63 889d6effffff 391d???????? 750f } | |
| $sequence_6 | hex | { 7409 be01000000 d3e6 0bd6 49 } | |
| $sequence_7 | hex | { 889d17ffffff 66c78518ffffff6d6f c6851affffff74 889d1bffffff 66c7851cffffff5468 } | |
| $sequence_8 | hex | { 8b4508 ff34c550c04000 ff15???????? 5d c3 6a0c } | |
| $sequence_9 | hex | { c78554ffffff77007300 c78558ffffff20004e00 c7855cffffff54002000 c78560ffffff36002e00 c78564ffffff33003b00 } |
Condition
7 of them and filesize < 146432In plain words (Heuristic)
- The file must be smaller than 146432 (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: 5c849e44-acd1-51b9-b726-d3f916023f4f
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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