Backdoor_MacOS_Meddlingmetal_A

YARA detection rule by roadwy

Backdoor:MacOS/Meddlingmetal.A,SIGNATURE_TYPE_MACHOHSTR_EXT,05 00 05 00 03 00 00

rule Backdoor_MacOS_Meddlingmetal_A{
	meta:
		description = "Backdoor:MacOS/Meddlingmetal.A,SIGNATURE_TYPE_MACHOHSTR_EXT,05 00 05 00 03 00 00 "
		
	strings :
		$a_01_0 = {c1 ea 08 83 e2 3f 41 33 0c 92 89 c2 c1 ea 10 83 e2 3f c1 e8 18 83 e0 3f 41 33 0c 93 44 89 ca c1 c2 1c 33 94 37 8c 00 00 00 41 33 0c 86 89 d0 83 e0 3f 41 33 0c 87 89 d0 c1 e8 08 83 e0 3f 41 33 0c 84 89 d0 c1 e8 10 83 e0 3f 41 33 4c 85 00 c1 ea 18 } 		$a_01_1 = {c1 ea 08 83 e2 3f 45 33 14 91 89 f2 c1 ea 10 83 e2 3f c1 ee 18 83 e6 3f 45 33 14 93 89 ca c1 c2 1c 42 33 94 00 84 00 00 00 45 33 14 b6 89 d6 83 e6 3f 45 33 14 b7 89 d6 c1 ee 08 83 e6 3f 45 33 14 b4 89 d6 c1 ee 10 83 e6 3f c1 ea 18 } 		$a_01_2 = {4d 53 46 5f 4c 49 43 45 4e 53 45 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*4) >=5
 
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

d85f8141-ab61-415e-9635-29a8c3475d5c

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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