TrojanDownloader_O97M_Powdow_A

YARA detection rule by roadwy

TrojanDownloader:O97M/Powdow.A,SIGNATURE_TYPE_MACROHSTR_EXT,08 00 08 00 06 00 00

rule TrojanDownloader_O97M_Powdow_A{
	meta:
		description = "TrojanDownloader:O97M/Powdow.A,SIGNATURE_TYPE_MACROHSTR_EXT,08 00 08 00 06 00 00 "
		
	strings :
		$a_01_0 = {70 6f 77 65 72 73 68 65 6c 6c 2e 65 78 65 20 2d 4e 6f 50 20 2d 4e 6f 6e 49 20 2d 57 20 48 69 64 64 65 6e 20 2d 45 78 65 63 20 42 79 70 61 73 73 } 		$a_01_1 = {49 6e 76 6f 6b 65 2d 45 78 70 72 65 73 73 69 6f 6e } 		$a_01_2 = {43 6f 6d 70 72 65 73 73 69 6f 6e 4d 6f 64 65 5d 3a 3a 44 65 63 6f 6d 70 72 65 73 73 } 		$a_01_3 = {49 4f 2e 4d 65 6d 6f 72 79 53 74 72 65 61 6d } 		$a_01_4 = {46 72 6f 6d 42 61 73 65 36 34 53 74 72 69 6e 67 } 		$a_03_5 = {53 68 65 6c 6c 20 28 90 05 0f 03 61 2d 7a 29 } 	condition:
		((#a_01_0  & 1)*3+(#a_01_1  & 1)*2+(#a_01_2  & 1)*2+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1+(#a_03_5  & 1)*2) >=8
 
}

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

4fb49fd7-308b-41cd-b703-b5a6c33cab0d

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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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