TrojanDownloader_O97M_Maluco_KSH_MSR

YARA detection rule by roadwy

TrojanDownloader:O97M/Maluco.KSH!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00

rule TrojanDownloader_O97M_Maluco_KSH_MSR{
	meta:
		description = "TrojanDownloader:O97M/Maluco.KSH!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00 "
		
	strings :
		$a_00_0 = {28 74 69 6c 70 53 2e 75 74 24 3d 6d 6a 24 3b 74 78 65 74 24 20 6e 69 6f 6a 2d 3d 75 74 24 3b 29 74 78 65 74 24 28 65 73 72 65 76 65 52 3a 3a 5d 79 61 72 72 41 5b 3b 29 28 79 61 72 72 41 72 61 68 43 6f 54 } 		$a_00_1 = {64 6e 61 6d 6d 6f 63 2d 20 6e 65 64 64 69 68 20 65 6c 79 74 53 77 6f 64 6e 69 57 2d 20 6c 6c 65 68 73 72 65 77 6f 50 20 6e 69 6d 2f 20 74 72 61 74 73 20 63 2f 20 44 4d 43 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1) >=2
 
}

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

18635286-0a9e-4612-874b-fdb21678ea4d

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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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