Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Polyglotduke_Auto

autogenerated rule brought to you by yara-signator

MalwarePolyglotdukeMalpedia 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: Polyglotduke.

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

Summary generated from the rule's metadata and condition.

Rule source

win-polyglotduke-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Polyglotduke_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "bd1cdf0e-15dd-5c4c-ab72-fd36e70c90c4"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.polyglotduke"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.polyglotduke_auto.yar#L1-L130"
		license_url = "N/A"
		logic_hash = "d064f7fc396b35b48b1d6e8322ade65ed162888536ee04d4d1c2c231e2a4ff25"
		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 = { 49ffc1 4d3bca 7cbd e9???????? 488b7c2430 498bcc e8???????? }
		$sequence_1 = { 0f44cf 4863f1 488d4c3602 e8???????? 448d4601 488bd8 }
		$sequence_2 = { 482bc8 48c1e903 8bc1 488b7cc420 488bcf ff15???????? 8d5801 }
		$sequence_3 = { 418bd4 488bce 4983c010 e8???????? 488bcb e8???????? 488bc6 }
		$sequence_4 = { 488d0d67d20000 488bd8 e8???????? 488b542430 488b8c24c0000000 488bf8 e8???????? }
		$sequence_5 = { 488bf2 488be9 4885c9 7507 33c0 e9???????? 488bca }
		$sequence_6 = { ff15???????? 4889742420 c744242803000000 4863c8 488d85b0010000 4889742438 6689b44db2010000 }
		$sequence_7 = { 488bd8 e8???????? 41bc04010000 418bcc e8???????? }
		$sequence_8 = { 4c8b6c2430 418bfc e9???????? 448b03 488b5308 488b4c2438 }
		$sequence_9 = { 7455 8d5011 488d0d27570100 e8???????? 488bc8 488bf8 e8???????? }

	condition:
		7 of them and filesize < 222784
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 49ffc1 4d3bca 7cbd e9???????? 488b7c2430 498bcc e8???????? }
$sequence_1hex{ 0f44cf 4863f1 488d4c3602 e8???????? 448d4601 488bd8 }
$sequence_2hex{ 482bc8 48c1e903 8bc1 488b7cc420 488bcf ff15???????? 8d5801 }
$sequence_3hex{ 418bd4 488bce 4983c010 e8???????? 488bcb e8???????? 488bc6 }
$sequence_4hex{ 488d0d67d20000 488bd8 e8???????? 488b542430 488b8c24c0000000 488bf8 e8???????? }
$sequence_5hex{ 488bf2 488be9 4885c9 7507 33c0 e9???????? 488bca }
$sequence_6hex{ ff15???????? 4889742420 c744242803000000 4863c8 488d85b0010000 4889742438 6689b44db2010000 }
$sequence_7hex{ 488bd8 e8???????? 41bc04010000 418bcc e8???????? }
$sequence_8hex{ 4c8b6c2430 418bfc e9???????? 448b03 488b5308 488b4c2438 }
$sequence_9hex{ 7455 8d5011 488d0d27570100 e8???????? 488bc8 488bf8 e8???????? }

Condition

7 of them and filesize < 222784

In plain words (Heuristic)

  • The file must be smaller than 222784 (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: bd1cdf0e-15dd-5c4c-ab72-fd36e70c90c4

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

More Polyglotduke rules