TrojanDownloader_O97M_Powdow_BML_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Powdow.BML!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00

rule TrojanDownloader_O97M_Powdow_BML_MTB{
	meta:
		description = "TrojanDownloader:O97M/Powdow.BML!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_03_0 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 73 63 72 69 70 74 2e 22 20 26 20 43 68 72 28 31 31 35 29 20 26 20 [0-19] 29 2e 52 75 6e 28 [0-19] 20 26 20 [0-19] 20 26 20 22 20 2d 77 20 68 20 53 74 61 72 74 2d 42 69 74 22 20 26 20 43 68 72 28 31 31 35 29 20 26 20 22 54 72 61 6e 73 66 65 72 20 2d 53 6f 75 72 63 65 20 22 20 26 20 43 68 72 28 33 34 29 } 		$a_03_1 = {68 74 74 60 70 3a 2f 2f 33 31 2e 32 31 30 2e 32 30 2e 34 35 2f 7a 43 48 2f [0-19] 2e 65 78 } 		$a_03_2 = {44 65 73 74 69 6e 61 74 69 6f 6e 20 22 20 26 20 43 68 72 28 33 34 29 20 26 20 22 43 3a 5c 55 73 65 72 73 5c 50 75 62 6c 69 63 5c 44 6f 63 75 6d 65 6e 74 73 5c [0-19] 2e 65 78 22 20 26 20 43 68 72 28 31 30 31 29 } 		$a_01_3 = {3d 20 22 70 6f 77 65 72 73 22 } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1+(#a_01_3  & 1)*1) >=4
 
}

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

a382fb9f-7cb8-4c2d-9e23-decc115573df

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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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