TrojanDownloader_O97M_Powdow_ALVS_MTB

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Powdow_ALVS_MTB{
	meta:
		description = "TrojanDownloader:O97M/Powdow.ALVS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_03_0 = {53 75 62 20 61 75 74 6f 6f 70 65 4e 28 29 90 0c 02 00 6d 69 78 20 22 54 22 2c 20 22 41 22 90 0c 02 00 45 6e 64 20 53 75 62 } 		$a_03_1 = {50 75 62 6c 69 63 20 53 75 62 20 6d 69 78 28 [0-20] 2c 20 [0-20] 29 [0-20] 20 3d 20 22 2e 68 22 20 26 20 [0-20] 20 26 20 [0-20] 4f 70 65 6e 20 [0-20] 20 46 6f 72 20 4f 75 74 70 75 74 20 41 73 20 23 31 } 		$a_03_2 = {50 72 69 6e 74 20 23 31 2c 20 52 65 70 6c 61 63 65 28 41 63 74 69 76 65 44 6f 63 75 6d 65 6e 74 2e 43 6f 6e 74 65 6e 74 2c 20 22 [0-08] 22 2c 20 22 22 29 90 0c 02 00 43 6c 6f 73 65 20 23 31 90 0c 02 00 77 69 6e 64 6f 77 5f 6f 70 65 6e 20 [0-20] 45 6e 64 20 53 75 62 } 		$a_03_3 = {3d 20 4e 65 77 20 49 57 73 68 52 75 6e 74 69 6d 65 4c 69 62 72 61 72 79 2e 57 73 68 53 68 65 6c 6c [0-30] 2e 72 75 6e 20 22 73 63 72 69 70 74 72 75 6e 6e 65 72 20 2d 61 70 70 76 73 63 72 69 70 74 20 22 20 26 20 [0-20] 2c 20 32 90 0c 02 00 45 6e 64 20 53 75 62 } 		$a_01_4 = {41 74 74 72 69 62 75 74 65 20 56 42 5f 4e 61 6d 65 20 3d 20 22 77 61 76 44 61 74 65 4d 69 78 22 } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1+(#a_03_3  & 1)*1+(#a_01_4  & 1)*1) >=5
 
}

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

77b0fa47-2e23-421b-aa03-1dc3fa78337a

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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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