TrojanDownloader_O97M_Donoff_110

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,08 00 08 00 0a 00 00

rule TrojanDownloader_O97M_Donoff_110{
	meta:
		description = "TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,08 00 08 00 0a 00 00 "
		
	strings :
		$a_00_0 = {3d 20 41 72 72 61 79 28 22 43 4d } 		$a_00_1 = {3d 20 41 72 72 61 79 28 22 44 2e } 		$a_00_2 = {3d 20 41 72 72 61 79 28 22 45 78 } 		$a_00_3 = {3d 20 41 72 72 61 79 28 22 45 20 } 		$a_00_4 = {3d 20 41 72 72 61 79 28 22 50 6f } 		$a_00_5 = {3d 20 41 72 72 61 79 28 22 77 5e } 		$a_00_6 = {3d 20 41 72 72 61 79 28 22 45 5e } 		$a_00_7 = {3d 20 41 72 72 61 79 28 22 52 5e } 		$a_00_8 = {3d 20 41 72 72 61 79 28 22 73 48 } 		$a_00_9 = {2e 52 75 6e 20 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_00_4  & 1)*1+(#a_00_5  & 1)*1+(#a_00_6  & 1)*1+(#a_00_7  & 1)*1+(#a_00_8  & 1)*1+(#a_00_9  & 1)*1) >=8
 
}

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

cb17296e-2655-44a2-a8e7-22c566ea71a7

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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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