Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Equationdrug_Auto

autogenerated rule brought to you by yara-signator

MalwareEquationdrugMalpedia 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: Equationdrug.

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

Summary generated from the rule's metadata and condition.

Rule source

win-equationdrug-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Equationdrug_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "0721b2fc-701d-52cd-abad-d5844208c546"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.equationdrug"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.equationdrug_auto.yar#L1-L133"
		license_url = "N/A"
		logic_hash = "ac135b29af3e337ca0b87d472ac1a1e3e59a03d5184d29a05b687a75ae011152"
		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 = { e8???????? 8b4c242c 51 e8???????? 83c404 b805030000 5f }
		$sequence_1 = { 8b442464 8b6c246c 03f8 66897c2410 33ff 6685db 7679 }
		$sequence_2 = { 895c242c 895c2430 c7442474ffffffff e8???????? b807080000 e9???????? 33ff }
		$sequence_3 = { 8b6c2430 668b442434 8bd3 893a 896a04 66894208 83c60a }
		$sequence_4 = { 83c434 c3 8b4514 8b08 33c0 8bd1 c1e902 }
		$sequence_5 = { 8b4c2410 890f 83c704 3bf8 75f3 83460804 8b4500 }
		$sequence_6 = { b800060000 5b 8b4c2468 64890d00000000 83c474 c3 8b9c2488000000 }
		$sequence_7 = { 03fb 81c300400000 f3a5 42 33f6 eba9 }
		$sequence_8 = { 51 6880000000 8d94248c000000 6a01 52 e8???????? 83c410 }
		$sequence_9 = { 51 8944241c 89542424 89742428 8944242c 89542434 89742438 }

	condition:
		7 of them and filesize < 449536
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ e8???????? 8b4c242c 51 e8???????? 83c404 b805030000 5f }
$sequence_1hex{ 8b442464 8b6c246c 03f8 66897c2410 33ff 6685db 7679 }
$sequence_2hex{ 895c242c 895c2430 c7442474ffffffff e8???????? b807080000 e9???????? 33ff }
$sequence_3hex{ 8b6c2430 668b442434 8bd3 893a 896a04 66894208 83c60a }
$sequence_4hex{ 83c434 c3 8b4514 8b08 33c0 8bd1 c1e902 }
$sequence_5hex{ 8b4c2410 890f 83c704 3bf8 75f3 83460804 8b4500 }
$sequence_6hex{ b800060000 5b 8b4c2468 64890d00000000 83c474 c3 8b9c2488000000 }
$sequence_7hex{ 03fb 81c300400000 f3a5 42 33f6 eba9 }
$sequence_8hex{ 51 6880000000 8d94248c000000 6a01 52 e8???????? 83c410 }
$sequence_9hex{ 51 8944241c 89542424 89742428 8944242c 89542434 89742438 }

Condition

7 of them and filesize < 449536

In plain words (Heuristic)

  • The file must be smaller than 449536 (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: 0721b2fc-701d-52cd-abad-d5844208c546

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