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MALPEDIA_Win_Alreay_Auto

autogenerated rule brought to you by yara-signator

MalwareAlreayMalpedia 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: Alreay.

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

Summary generated from the rule's metadata and condition.

Rule source

win-alreay-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Alreay_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "d689cd57-86fc-54dc-904b-f3e4e8470710"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.alreay"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.alreay_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "4a2ff06f065bb0eea8f7a3e2b1c268ec04fcdaba5f19f9ace7da110acd238224"
		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 = { 895f2c 8b8608870000 8bd5 3bd0 7528 8b960c870000 8bc3 }
		$sequence_1 = { 8b442404 8b88e4010000 85c9 746c 8b4c2408 85c9 7564 }
		$sequence_2 = { 51 52 e8???????? 8bf0 83c40c 85f6 755a }
		$sequence_3 = { 8d842430010000 51 8b4c242c 23f0 56 51 ff15???????? }
		$sequence_4 = { eb38 b90b000000 bf???????? 8bf3 33c0 66f3a7 750a }
		$sequence_5 = { 8bdd c1eb16 c1e50a 0bdd 8b6c2428 895c241c 8bd8 }
		$sequence_6 = { ff15???????? 83c404 b800edffff 5f 5e 5d 5b }
		$sequence_7 = { c3 8b742418 56 e8???????? 8b4d4c 83c404 8901 }
		$sequence_8 = { 8b4c2460 89442404 89442408 8b442464 50 8d542408 51 }
		$sequence_9 = { 8b4804 51 50 e8???????? 83c40c 85c0 7508 }

	condition:
		7 of them and filesize < 1867776
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 895f2c 8b8608870000 8bd5 3bd0 7528 8b960c870000 8bc3 }
$sequence_1hex{ 8b442404 8b88e4010000 85c9 746c 8b4c2408 85c9 7564 }
$sequence_2hex{ 51 52 e8???????? 8bf0 83c40c 85f6 755a }
$sequence_3hex{ 8d842430010000 51 8b4c242c 23f0 56 51 ff15???????? }
$sequence_4hex{ eb38 b90b000000 bf???????? 8bf3 33c0 66f3a7 750a }
$sequence_5hex{ 8bdd c1eb16 c1e50a 0bdd 8b6c2428 895c241c 8bd8 }
$sequence_6hex{ ff15???????? 83c404 b800edffff 5f 5e 5d 5b }
$sequence_7hex{ c3 8b742418 56 e8???????? 8b4d4c 83c404 8901 }
$sequence_8hex{ 8b4c2460 89442404 89442408 8b442464 50 8d542408 51 }
$sequence_9hex{ 8b4804 51 50 e8???????? 83c40c 85c0 7508 }

Condition

7 of them and filesize < 1867776

In plain words (Heuristic)

  • The file must be smaller than 1867776 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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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: d689cd57-86fc-54dc-904b-f3e4e8470710

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