TrojanDownloader_O97M_Powdow_STN_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Powdow.STN!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDownloader_O97M_Powdow_STN_MTB{
	meta:
		description = "TrojanDownloader:O97M/Powdow.STN!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {6a 6f 68 6e 74 68 65 72 6f 63 6b 20 3d 20 22 61 66 44 35 2d 73 68 37 68 37 61 75 39 73 66 64 22 } 		$a_01_1 = {72 69 63 6b 74 68 65 64 69 20 3d 20 22 64 38 73 61 73 61 44 37 30 41 2d 34 33 64 38 73 61 73 61 42 2d 64 38 73 61 73 61 41 34 32 2d 39 64 38 73 61 73 61 34 22 } 		$a_01_2 = {64 75 34 69 20 3d 20 65 64 7a 78 66 76 79 71 20 26 20 22 6c 69 63 5c 37 38 34 35 36 31 32 33 33 34 39 38 34 36 35 31 33 32 2e 65 78 65 22 } 		$a_01_3 = {67 6f 64 6b 6e 6f 77 73 20 3d 20 52 65 70 6c 61 63 65 28 22 63 6d 64 20 2f 63 20 70 6f 77 5e 65 64 7a 78 66 76 79 71 72 73 5e 68 65 64 7a 78 66 76 79 71 6c 6c 2f 57 20 30 31 20 63 5e 75 5e 72 6c 20 68 74 74 5e 70 3a 2f 2f 31 31 36 2e 32 30 32 2e 31 32 2e 36 39 2f 61 61 61 2e 65 64 7a 78 66 76 79 71 5e 78 65 64 7a 78 66 76 79 71 20 2d 6f 20 22 20 26 20 64 75 34 69 20 26 20 22 3b 22 20 26 20 64 75 34 69 2c 20 22 65 64 7a 78 66 76 79 71 22 2c 20 22 65 22 29 } 		$a_01_4 = {75 76 68 67 73 6f 2e 65 78 65 63 20 67 6f 64 6b 6e 6f 77 73 } 	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) >=5
 
}

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

437dceef-b9c9-43fa-8b56-763c4190a95e

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion