TrojanDownloader_O97M_Powdow_BK_MTB_8

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Powdow_BK_MTB_8{
	meta:
		description = "TrojanDownloader:O97M/Powdow.BK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {70 6f 77 65 72 73 68 65 6c 6c 2e 65 78 65 20 20 2d 45 78 65 63 75 74 69 6f 6e 50 6f 6c 69 63 79 20 42 79 70 61 73 73 20 2d 4e 6f 50 72 6f 66 69 6c 65 20 2d 57 69 6e 64 6f 77 53 74 79 6c 65 20 68 69 64 64 65 6e } 		$a_01_1 = {45 6e 63 6f 64 65 64 63 6f 6d 6d 61 6e 64 20 63 41 42 76 41 48 63 41 5a 51 42 79 41 48 4d 41 61 41 42 6c 41 47 77 41 62 41 41 75 41 47 55 41 65 } 		$a_01_2 = {3d 20 4d 73 67 42 6f 78 28 22 57 45 20 48 41 56 45 20 41 4c 4c 20 59 4f 55 52 20 44 41 54 41 2d 20 59 4f 55 20 57 41 4e 54 20 50 41 59 3f 2d 30 2e 32 62 69 74 63 6f 69 6e 2d 37 38 66 63 57 4c 37 4d 38 41 37 77 6f 52 42 64 6e 50 75 72 65 7a 45 73 57 31 6f 36 33 52 56 59 55 53 22 2c 20 76 62 59 65 73 4e 6f 29 } 		$a_01_3 = {43 61 6c 6c 20 53 68 65 6c 6c } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=4
 
}

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

363b2a6d-6f1f-450a-8c81-d077157e0419

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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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