Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Deadwood_Auto

autogenerated rule brought to you by yara-signator

MalwareDeadwoodMalpedia 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: Deadwood.

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

Summary generated from the rule's metadata and condition.

Rule source

win-deadwood-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Deadwood_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "303bb9bd-2be8-56ae-af8b-89adb9222ff3"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.deadwood"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.deadwood_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "a0ccc35033fb022fdfa9ec3165249c75b83b237f1638e915ad2906afcf937a68"
		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 = { 53 ff15???????? 57 ff15???????? 8bc6 8b4df4 64890d00000000 }
		$sequence_1 = { 83c404 8d8d20ffffff c745e80f000000 895de4 885dd4 885dfc e8???????? }
		$sequence_2 = { 85c0 751d 8b4d08 51 68???????? 8d57ff 52 }
		$sequence_3 = { 33db 895dfc 8d4dbc 895de8 e8???????? b801000000 8945fc }
		$sequence_4 = { 83c40c 83bdd4feffff03 0f8580010000 895dbc 895dc0 895dc4 83ec08 }
		$sequence_5 = { 8b5014 8d4c2424 51 8bce ffd2 8b7604 3bf3 }
		$sequence_6 = { 85f6 0f8486000000 c7462014104600 83c7d8 c7462864b94500 b801000000 8845fc }
		$sequence_7 = { 68ffff0000 ff15???????? 6a01 ff15???????? 68e8030000 ff15???????? e9???????? }
		$sequence_8 = { 51 e8???????? 83c404 33d2 89bd64ffffff 899d60ffffff 66899550ffffff }
		$sequence_9 = { 8b7518 85f6 742a 8d4604 83c9ff f00fc108 751e }

	condition:
		7 of them and filesize < 1055744
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 53 ff15???????? 57 ff15???????? 8bc6 8b4df4 64890d00000000 }
$sequence_1hex{ 83c404 8d8d20ffffff c745e80f000000 895de4 885dd4 885dfc e8???????? }
$sequence_2hex{ 85c0 751d 8b4d08 51 68???????? 8d57ff 52 }
$sequence_3hex{ 33db 895dfc 8d4dbc 895de8 e8???????? b801000000 8945fc }
$sequence_4hex{ 83c40c 83bdd4feffff03 0f8580010000 895dbc 895dc0 895dc4 83ec08 }
$sequence_5hex{ 8b5014 8d4c2424 51 8bce ffd2 8b7604 3bf3 }
$sequence_6hex{ 85f6 0f8486000000 c7462014104600 83c7d8 c7462864b94500 b801000000 8845fc }
$sequence_7hex{ 68ffff0000 ff15???????? 6a01 ff15???????? 68e8030000 ff15???????? e9???????? }
$sequence_8hex{ 51 e8???????? 83c404 33d2 89bd64ffffff 899d60ffffff 66899550ffffff }
$sequence_9hex{ 8b7518 85f6 742a 8d4604 83c9ff f00fc108 751e }

Condition

7 of them and filesize < 1055744

In plain words (Heuristic)

  • The file must be smaller than 1055744 (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: 303bb9bd-2be8-56ae-af8b-89adb9222ff3

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