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MALPEDIA_Win_Morpheus_Auto

autogenerated rule brought to you by yara-signator

MalwareMorpheusMalpedia 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: Morpheus.

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

Summary generated from the rule's metadata and condition.

Rule source

win-morpheus-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Morpheus_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "d59d5386-4e48-5a99-85db-1ed927c0ccb2"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.morpheus"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.morpheus_auto.yar#L1-L115"
		license_url = "N/A"
		logic_hash = "4294f914e84ba716ddff6f65692b975cbfaffc61dbbfbfefce5705efe03c25c4"
		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 = { 8b44244c ffc0 8944244c ebc4 }
		$sequence_1 = { 8b8424dc010000 8b4c242c 488b942428040000 488b5210 488904ca }
		$sequence_2 = { 0f845a020000 b808000000 486bc002 488b8c24f0000000 }
		$sequence_3 = { 488b8c2400010000 ff15???????? 488b8c2400010000 ff15???????? e9???????? }
		$sequence_4 = { 4883c002 4889842468010000 83bc241401000000 740c 8b442444 ffc0 89442444 }
		$sequence_5 = { b85f000000 66898424c4000000 b82e000000 66898424c6000000 }
		$sequence_6 = { ebb1 33c0 488b8c24a8000000 668901 }
		$sequence_7 = { 39442440 731f 8b442440 488b4c2450 0fbe0401 33442444 }
		$sequence_8 = { ff15???????? c744242000000000 c744242800000000 eb0a 8b442420 ffc0 }
		$sequence_9 = { 4c8bc0 ba08000000 488b0d???????? ff15???????? 488b4c2438 48894110 }

	condition:
		7 of them and filesize < 74752
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b44244c ffc0 8944244c ebc4 }
$sequence_1hex{ 8b8424dc010000 8b4c242c 488b942428040000 488b5210 488904ca }
$sequence_2hex{ 0f845a020000 b808000000 486bc002 488b8c24f0000000 }
$sequence_3hex{ 488b8c2400010000 ff15???????? 488b8c2400010000 ff15???????? e9???????? }
$sequence_4hex{ 4883c002 4889842468010000 83bc241401000000 740c 8b442444 ffc0 89442444 }
$sequence_5hex{ b85f000000 66898424c4000000 b82e000000 66898424c6000000 }
$sequence_6hex{ ebb1 33c0 488b8c24a8000000 668901 }
$sequence_7hex{ 39442440 731f 8b442440 488b4c2450 0fbe0401 33442444 }
$sequence_8hex{ ff15???????? c744242000000000 c744242800000000 eb0a 8b442420 ffc0 }
$sequence_9hex{ 4c8bc0 ba08000000 488b0d???????? ff15???????? 488b4c2438 48894110 }

Condition

7 of them and filesize < 74752

In plain words (Heuristic)

  • The file must be smaller than 74752 (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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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: d59d5386-4e48-5a99-85db-1ed927c0ccb2

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