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MALPEDIA_Win_Horus_Auto

autogenerated rule brought to you by yara-signator

MalwareHorusMalpedia 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: Horus.

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

Summary generated from the rule's metadata and condition.

Rule source

win-horus-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Horus_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "d360dcae-88e3-56c3-ad49-d048a5d59f10"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.horus"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.horus_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "3391a294872b22675b06e19bbaf99f8ddf342a638d7246e9d740ef6d2b2068a6"
		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 = { 48894c2448 8b85a8040000 3d2a750000 0f8435010000 3d36c20100 743c 3dcbf80100 }
		$sequence_1 = { 8000d9 48ffc8 48ffc9 75f5 4883659f00 488d45f7 48894597 }
		$sequence_2 = { 3bc0 0f854a010000 4533c9 c7442430d05b0000 8b442430 3dd05b0000 0f84c8000000 }
		$sequence_3 = { ff15???????? 488bd8 4885c0 7453 c785100100000d800300 8b8510010000 3d124e0000 }
		$sequence_4 = { 740b e8???????? 4533c0 488bd8 89b530030000 eb86 4439458c }
		$sequence_5 = { 744d 4c8d4538 488d15718dffff 33c9 ffd0 488bcb 85c0 }
		$sequence_6 = { 4c8d4520 488d1509a7ffff 33c9 ffd0 498bcf 85c0 480f494d28 }
		$sequence_7 = { 4c89b508020000 44896c2420 8b442420 413bc5 7429 3d49bc0100 7441 }
		$sequence_8 = { 742d 4c8d45f0 488d1580bbfdff 33c9 ffd0 488bd7 85c0 }
		$sequence_9 = { 48894c2478 3d4b0e0000 74e1 eb05 488b4c2478 3d4d050200 750f }

	condition:
		7 of them and filesize < 887808
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 48894c2448 8b85a8040000 3d2a750000 0f8435010000 3d36c20100 743c 3dcbf80100 }
$sequence_1hex{ 8000d9 48ffc8 48ffc9 75f5 4883659f00 488d45f7 48894597 }
$sequence_2hex{ 3bc0 0f854a010000 4533c9 c7442430d05b0000 8b442430 3dd05b0000 0f84c8000000 }
$sequence_3hex{ ff15???????? 488bd8 4885c0 7453 c785100100000d800300 8b8510010000 3d124e0000 }
$sequence_4hex{ 740b e8???????? 4533c0 488bd8 89b530030000 eb86 4439458c }
$sequence_5hex{ 744d 4c8d4538 488d15718dffff 33c9 ffd0 488bcb 85c0 }
$sequence_6hex{ 4c8d4520 488d1509a7ffff 33c9 ffd0 498bcf 85c0 480f494d28 }
$sequence_7hex{ 4c89b508020000 44896c2420 8b442420 413bc5 7429 3d49bc0100 7441 }
$sequence_8hex{ 742d 4c8d45f0 488d1580bbfdff 33c9 ffd0 488bd7 85c0 }
$sequence_9hex{ 48894c2478 3d4b0e0000 74e1 eb05 488b4c2478 3d4d050200 750f }

Condition

7 of them and filesize < 887808

In plain words (Heuristic)

  • The file must be smaller than 887808 (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: d360dcae-88e3-56c3-ad49-d048a5d59f10

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