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MALPEDIA_Win_Doublefinger_Auto

autogenerated rule brought to you by yara-signator

MalwareDoublefingerMalpedia 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: Doublefinger.

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

Summary generated from the rule's metadata and condition.

Rule source

win-doublefinger-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Doublefinger_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "3d9393e9-7773-5480-8061-9ef15c01ff97"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.doublefinger"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.doublefinger_auto.yar#L1-L117"
		license_url = "N/A"
		logic_hash = "853a77566abb8caa206ba73d4a3891e986337f4b63f9bfa4751336f42049cb30"
		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 = { 8b442404 8b0c24 03c8 8bc1 03442408 8bc0 }
		$sequence_1 = { 8b442448 39442444 7d27 41b87a000000 ba61000000 488b8c2468010000 e8???????? }
		$sequence_2 = { 4533c0 8b942464010000 488b4c2450 e8???????? }
		$sequence_3 = { 4883ec38 ba08000000 488d4c2420 e8???????? 6944244810270000 }
		$sequence_4 = { 488b4c2450 e8???????? 48898424f8020000 8b442458 35beaeaeab }
		$sequence_5 = { 4c89442418 4889542410 48894c2408 4883ec68 48c744243000000000 c744242880000000 c744242003000000 }
		$sequence_6 = { 488bc1 eb7a 837c242000 7471 }
		$sequence_7 = { 85c0 752d 41b975020000 4533c0 48c7c2ffffffff 488d8c2410030000 }
		$sequence_8 = { 3565708005 8984246c010000 8b84246c010000 8b4c2460 33c8 }
		$sequence_9 = { 488b8424a0020000 8b4c2460 3908 7502 }

	condition:
		7 of them and filesize < 115712
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b442404 8b0c24 03c8 8bc1 03442408 8bc0 }
$sequence_1hex{ 8b442448 39442444 7d27 41b87a000000 ba61000000 488b8c2468010000 e8???????? }
$sequence_2hex{ 4533c0 8b942464010000 488b4c2450 e8???????? }
$sequence_3hex{ 4883ec38 ba08000000 488d4c2420 e8???????? 6944244810270000 }
$sequence_4hex{ 488b4c2450 e8???????? 48898424f8020000 8b442458 35beaeaeab }
$sequence_5hex{ 4c89442418 4889542410 48894c2408 4883ec68 48c744243000000000 c744242880000000 c744242003000000 }
$sequence_6hex{ 488bc1 eb7a 837c242000 7471 }
$sequence_7hex{ 85c0 752d 41b975020000 4533c0 48c7c2ffffffff 488d8c2410030000 }
$sequence_8hex{ 3565708005 8984246c010000 8b84246c010000 8b4c2460 33c8 }
$sequence_9hex{ 488b8424a0020000 8b4c2460 3908 7502 }

Condition

7 of them and filesize < 115712

In plain words (Heuristic)

  • The file must be smaller than 115712 (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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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: 3d9393e9-7773-5480-8061-9ef15c01ff97

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