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MALPEDIA_Win_Makop_Auto

autogenerated rule brought to you by yara-signator

MalwareMakopMalpedia 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: Makop.

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

Summary generated from the rule's metadata and condition.

Rule source

win-makop-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Makop_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "be31a605-227a-575d-91b3-04c54b900ba0"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.makop"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.makop_auto.yar#L1-L126"
		license_url = "N/A"
		logic_hash = "58c414593cac7aafdac3aa147f8cdd29a61009e537f3bfd139fcb6583a051cea"
		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 = { 56 8bd8 57 8d442428 }
		$sequence_1 = { 50 6a00 ffd7 50 ff15???????? eb06 8bc1 }
		$sequence_2 = { 6a00 6a01 ffd5 8bf0 85f6 7410 }
		$sequence_3 = { 663d5a00 7703 83c020 0fb7c8 0fb706 663d4100 }
		$sequence_4 = { 7439 53 55 8b2d???????? 57 8bde 8b3b }
		$sequence_5 = { 33c0 8d4c2414 51 a3???????? a1???????? 6a02 e8???????? }
		$sequence_6 = { 0fb7f9 2bc7 751a 6685c9 7415 0fb74e02 0fb74202 }
		$sequence_7 = { ff15???????? 83c414 eb1c 8d54243c }
		$sequence_8 = { 7504 8907 eb44 6a2c 6a00 ff15???????? 50 }
		$sequence_9 = { 6a00 8d4c2414 51 52 57 55 c744242800000000 }

	condition:
		7 of them and filesize < 107520
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 56 8bd8 57 8d442428 }
$sequence_1hex{ 50 6a00 ffd7 50 ff15???????? eb06 8bc1 }
$sequence_2hex{ 6a00 6a01 ffd5 8bf0 85f6 7410 }
$sequence_3hex{ 663d5a00 7703 83c020 0fb7c8 0fb706 663d4100 }
$sequence_4hex{ 7439 53 55 8b2d???????? 57 8bde 8b3b }
$sequence_5hex{ 33c0 8d4c2414 51 a3???????? a1???????? 6a02 e8???????? }
$sequence_6hex{ 0fb7f9 2bc7 751a 6685c9 7415 0fb74e02 0fb74202 }
$sequence_7hex{ ff15???????? 83c414 eb1c 8d54243c }
$sequence_8hex{ 7504 8907 eb44 6a2c 6a00 ff15???????? 50 }
$sequence_9hex{ 6a00 8d4c2414 51 52 57 55 c744242800000000 }

Condition

7 of them and filesize < 107520

In plain words (Heuristic)

  • The file must be smaller than 107520 (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: be31a605-227a-575d-91b3-04c54b900ba0

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