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MALPEDIA_Win_Contopee_Auto

autogenerated rule brought to you by yara-signator

MalwareContopeeMalpedia 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: Contopee.

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

Summary generated from the rule's metadata and condition.

Rule source

win-contopee-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Contopee_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "2bf0f1e6-9717-50fa-9903-a8a0e1dfe7c0"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.contopee"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.contopee_auto.yar#L1-L126"
		license_url = "N/A"
		logic_hash = "790f812cd9c84ee7362105ba0ebd24a0076fd34b2aa8dd207748817bf8a44a6c"
		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 = { 83c410 55 53 6a03 6a00 68???????? 51 }
		$sequence_1 = { ff5208 8b17 8b842420010000 8b0e 52 50 }
		$sequence_2 = { 8d542410 51 52 8d842470040000 6a00 }
		$sequence_3 = { 51 e8???????? e9???????? 56 8d542414 53 52 }
		$sequence_4 = { 8d0480 6a00 8d0c80 8a842428010000 c1e103 84c0 894c2410 }
		$sequence_5 = { c1e807 33d2 8a9094130110 8bc2 66ff848688090000 8b869c160000 8b96a0160000 }
		$sequence_6 = { 8b542420 8b442424 89542418 8944241c eb0a ff15???????? 89442410 }
		$sequence_7 = { 6a00 ff15???????? 8d85f8feffff 6883000000 }
		$sequence_8 = { 8d4c2424 50 53 53 51 ff15???????? 83c410 }
		$sequence_9 = { 8b9c2428020000 6685db 0f84b7000000 6a06 6a01 }

	condition:
		7 of them and filesize < 180224
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 83c410 55 53 6a03 6a00 68???????? 51 }
$sequence_1hex{ ff5208 8b17 8b842420010000 8b0e 52 50 }
$sequence_2hex{ 8d542410 51 52 8d842470040000 6a00 }
$sequence_3hex{ 51 e8???????? e9???????? 56 8d542414 53 52 }
$sequence_4hex{ 8d0480 6a00 8d0c80 8a842428010000 c1e103 84c0 894c2410 }
$sequence_5hex{ c1e807 33d2 8a9094130110 8bc2 66ff848688090000 8b869c160000 8b96a0160000 }
$sequence_6hex{ 8b542420 8b442424 89542418 8944241c eb0a ff15???????? 89442410 }
$sequence_7hex{ 6a00 ff15???????? 8d85f8feffff 6883000000 }
$sequence_8hex{ 8d4c2424 50 53 53 51 ff15???????? 83c410 }
$sequence_9hex{ 8b9c2428020000 6685db 0f84b7000000 6a06 6a01 }

Condition

7 of them and filesize < 180224

In plain words (Heuristic)

  • The file must be smaller than 180224 (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: 2bf0f1e6-9717-50fa-9903-a8a0e1dfe7c0

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