Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Soundbill_Auto

autogenerated rule brought to you by yara-signator

MalwareSoundbillMalpedia 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: Soundbill.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-soundbill-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Soundbill_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "8bd1eb00-9546-5eee-9a61-9315c9b8c69d"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.soundbill"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.soundbill_auto.yar#L1-L128"
		license_url = "N/A"
		logic_hash = "e1009b33f7017cb61c5eebcf50230f014bdf3b5dbedf7d9e866f7fe5b90ea606"
		score = 75
		quality = 75
		tags = "FILE"
		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"

	strings:
		$sequence_0 = { 4c8d0dffb30100 b904000000 4c8d05ebb30100 488d15ecb30100 e8???????? 4c8d0df8b30100 b907000000 }
		$sequence_1 = { 4983ff10 490f43c6 3a1438 753a 4885ff 7510 }
		$sequence_2 = { 83f8ff 7453 c6430800 33ff 4c8b742430 85f6 0f85f4000000 }
		$sequence_3 = { 4c8d05c6440400 4c8905???????? 4c8bd1 4d85c9 7413 498b01 48635004 }
		$sequence_4 = { 488d55c0 488d4c2470 e8???????? 90 660f6f05???????? f30f7f442460 c644245000 }
		$sequence_5 = { 8bcf e8???????? 488bd7 4c8d0557a30200 83e23f 488bcf }
		$sequence_6 = { 0f87a3030000 e8???????? 0f10442428 0f11442450 }
		$sequence_7 = { 660f73d908 66480f7ec8 4883f810 480f43ca e8???????? 4885c0 }
		$sequence_8 = { 488d1d64fe0300 488d0575fe0300 480f44d8 ba01000000 488d4c2428 e8???????? 4c8bc0 }
		$sequence_9 = { ba01000000 488d4daf e8???????? 90 33ff 498bd7 488bcb }

	condition:
		7 of them and filesize < 973824
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 4c8d0dffb30100 b904000000 4c8d05ebb30100 488d15ecb30100 e8???????? 4c8d0df8b30100 b907000000 }
$sequence_1hex{ 4983ff10 490f43c6 3a1438 753a 4885ff 7510 }
$sequence_2hex{ 83f8ff 7453 c6430800 33ff 4c8b742430 85f6 0f85f4000000 }
$sequence_3hex{ 4c8d05c6440400 4c8905???????? 4c8bd1 4d85c9 7413 498b01 48635004 }
$sequence_4hex{ 488d55c0 488d4c2470 e8???????? 90 660f6f05???????? f30f7f442460 c644245000 }
$sequence_5hex{ 8bcf e8???????? 488bd7 4c8d0557a30200 83e23f 488bcf }
$sequence_6hex{ 0f87a3030000 e8???????? 0f10442428 0f11442450 }
$sequence_7hex{ 660f73d908 66480f7ec8 4883f810 480f43ca e8???????? 4885c0 }
$sequence_8hex{ 488d1d64fe0300 488d0575fe0300 480f44d8 ba01000000 488d4c2428 e8???????? 4c8bc0 }
$sequence_9hex{ ba01000000 488d4daf e8???????? 90 33ff 498bd7 488bcb }

Condition

7 of them and filesize < 973824

In plain words (Heuristic)

  • The file must be smaller than 973824 (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.

Open in editor

References

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)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 8bd1eb00-9546-5eee-9a61-9315c9b8c69d

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE