YARA · Malpedia signator rules
MALPEDIA_Win_Soundbite_Auto
autogenerated rule brought to you by yara-signator
MalwareSoundbiteMalpedia 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: Soundbite.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-soundbite-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Soundbite_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "a06db4e7-8884-520e-ad2e-cc77e77a0d67"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.soundbite"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.soundbite_auto.yar#L1-L129"
= "N/A"
= "a93a056689924e344640244b552c96a50f986e207fcb45b2c607d12ca01b9509"
= 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 = { 8dbd64fdffff 898590fdffff 889db7fdffff 899d64fdffff 899d68fdffff 899d6cfdffff }
$sequence_1 = { 8970f4 8b03 33c9 66890c70 eb21 8d45a0 }
$sequence_2 = { 330495f03a4200 4f 0f85fcfdffff 83fe04 7250 8bd6 c1ea02 }
$sequence_3 = { 8bec 57 8bf8 3b7d08 7458 53 56 }
$sequence_4 = { c785a8fdffff0d000000 8bb5a8fdffff 8b85b0fdffff 33db 3bc3 7608 50 }
$sequence_5 = { c78500ffffffd3e5f4c6 c78504ffffffe9ece5d0 c78508ffffffefe9eef4 66c7850cffffffe5f2 889d0effffff }
$sequence_6 = { 8945f0 8bc4 8938 897804 897808 89780c 8b5518 }
$sequence_7 = { 8b4c2430 8b742414 8bc3 2bc1 03c6 740c 50 }
$sequence_8 = { c745fc02000000 837de810 8b45d4 7303 8d45d4 50 68???????? }
$sequence_9 = { e8???????? 83c40c 8b85acfdffff 3bc3 7413 6800800000 }
condition:
7 of them and filesize < 409600
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8dbd64fdffff 898590fdffff 889db7fdffff 899d64fdffff 899d68fdffff 899d6cfdffff } | |
| $sequence_1 | hex | { 8970f4 8b03 33c9 66890c70 eb21 8d45a0 } | |
| $sequence_2 | hex | { 330495f03a4200 4f 0f85fcfdffff 83fe04 7250 8bd6 c1ea02 } | |
| $sequence_3 | hex | { 8bec 57 8bf8 3b7d08 7458 53 56 } | |
| $sequence_4 | hex | { c785a8fdffff0d000000 8bb5a8fdffff 8b85b0fdffff 33db 3bc3 7608 50 } | |
| $sequence_5 | hex | { c78500ffffffd3e5f4c6 c78504ffffffe9ece5d0 c78508ffffffefe9eef4 66c7850cffffffe5f2 889d0effffff } | |
| $sequence_6 | hex | { 8945f0 8bc4 8938 897804 897808 89780c 8b5518 } | |
| $sequence_7 | hex | { 8b4c2430 8b742414 8bc3 2bc1 03c6 740c 50 } | |
| $sequence_8 | hex | { c745fc02000000 837de810 8b45d4 7303 8d45d4 50 68???????? } | |
| $sequence_9 | hex | { e8???????? 83c40c 8b85acfdffff 3bc3 7413 6800800000 } |
Condition
7 of them and filesize < 409600In plain words (Heuristic)
- The file must be smaller than 409600 (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: a06db4e7-8884-520e-ad2e-cc77e77a0d67
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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