TrojanDownloader_O97M_Donoff_109

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 09 00 00

rule TrojanDownloader_O97M_Donoff_109{
	meta:
		description = "TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 09 00 00 "
		
	strings :
		$a_01_0 = {20 3d 20 41 72 72 61 79 28 4a 6f 69 6e 28 41 72 72 61 79 28 } 		$a_01_1 = {28 38 39 29 20 3d 20 41 72 72 61 79 28 22 } 		$a_01_2 = {28 38 38 29 20 3d 20 41 72 72 61 79 28 22 } 		$a_01_3 = {20 22 22 22 29 28 31 29 } 		$a_01_4 = {22 2c 20 22 5e 65 } 		$a_01_5 = {22 2c 20 22 45 } 		$a_01_6 = {28 38 36 29 20 3d 20 41 72 72 61 79 28 22 } 		$a_01_7 = {22 2c 20 22 5e 65 5e 22 29 28 31 29 } 		$a_01_8 = {22 2c 20 22 43 4d 44 22 29 28 31 29 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1+(#a_01_5  & 1)*1+(#a_01_6  & 1)*1+(#a_01_7  & 1)*1+(#a_01_8  & 1)*1) >=6
 
}

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

37b9b953-399d-486b-8a48-361b0d378e90

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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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