TrojanDownloader_O97M_Powdow_VA_MTB_4

YARA detection rule by roadwy

TrojanDownloader:O97M/Powdow.VA!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,09 00 09 00 09 00 00

rule TrojanDownloader_O97M_Powdow_VA_MTB_4{
	meta:
		description = "TrojanDownloader:O97M/Powdow.VA!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,09 00 09 00 09 00 00 "
		
	strings :
		$a_01_0 = {22 20 63 6e 65 2d 20 31 20 6e 69 77 2d 20 65 78 65 2e 6c 6c 65 68 73 72 65 77 6f 70 5c 30 2e 31 22 } 		$a_01_1 = {73 20 2b 20 22 76 5c 6c 6c 65 68 53 72 65 77 6f 50 73 77 6f 64 6e 69 57 5c 32 33 6d 65 74 73 79 53 5c 73 77 6f 64 6e 69 57 5c 3a 43 } 		$a_01_2 = {53 68 65 6c 6c 28 62 61 74 2c 20 30 29 } 		$a_01_3 = {2b 20 22 4a 41 42 51 41 48 49 41 62 77 42 6a 41 45 34 41 59 51 42 74 41 47 55 41 49 41 41 39 41 43 41 41 49 67 42 59 41 48 51 41 59 77 42 70 41 47 4d 41 5a 77 42 72 41 48 67 41 65 67 42 69 41 47 30 41 61 77 42 32 41 47 73 41 59 77 42 75 41 48 63 41 5a 41 42 33 41 48 59 41 5a 51 42 70 41 48 6f 41 65 } 		$a_01_4 = {2b 20 22 41 41 75 41 47 55 41 65 41 42 6c 41 43 49 41 4f 77 41 6f 41 45 34 41 5a 51 42 33 41 43 30 41 54 77 42 69 41 47 6f 41 5a 51 42 6a 41 48 51 41 49 41 42 54 41 48 6b 41 63 77 42 30 41 47 55 41 62 51 41 75 41 45 34 41 5a 51 42 30 41 43 34 41 56 77 42 6c 41 47 49 41 51 77 42 73 41 47 6b 41 5a 51 } 		$a_01_5 = {2b 20 22 42 75 41 48 51 41 4b 51 41 75 41 45 51 41 62 77 42 33 41 47 34 41 62 41 42 76 41 47 45 41 5a 41 42 47 41 47 6b 41 62 41 42 6c 41 43 67 41 49 67 42 6f 41 48 51 41 64 41 42 77 41 48 4d 41 4f 67 41 76 41 43 38 41 64 77 42 33 41 48 63 41 4c 67 42 6c 41 48 67 41 64 41 42 79 41 47 45 41 62 51 42 } 		$a_01_6 = {2b 20 22 70 41 47 77 41 5a 51 42 77 41 47 38 41 62 41 42 70 41 47 4d 41 65 51 41 75 41 48 4d 41 61 51 42 30 41 47 55 41 4c 77 42 30 41 48 49 41 61 51 42 68 41 47 77 41 5a 51 42 79 41 48 49 41 62 77 42 79 41 43 34 41 5a 51 42 34 41 47 55 41 49 67 41 73 41 43 49 41 4a 41 42 6c 41 47 34 41 64 67 41 36 } 		$a_01_7 = {2b 20 22 41 45 45 41 55 41 42 51 41 45 51 41 51 51 42 55 41 45 45 41 58 41 41 6b 41 46 41 41 63 67 42 76 41 47 4d 41 54 67 42 68 41 47 30 41 5a 51 41 69 41 43 6b 41 4f 77 42 54 41 48 51 41 59 51 42 79 41 48 51 41 4c 51 42 51 41 48 49 41 62 77 42 6a 41 47 55 41 63 77 42 7a 41 43 41 41 4b 41 41 69 41 } 		$a_01_8 = {2b 20 22 43 51 41 5a 51 42 75 41 48 59 41 4f 67 42 42 41 46 41 41 55 41 42 45 41 45 45 41 56 41 42 42 41 46 77 41 4a 41 42 51 41 48 49 41 62 77 42 6a 41 45 34 41 59 51 42 74 41 47 55 41 49 67 41 70 41 41 3d 3d } 	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+(#a_01_5  & 1)*1+(#a_01_6  & 1)*1+(#a_01_7  & 1)*1+(#a_01_8  & 1)*1) >=9
 
}

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

29a515c4-f173-4f77-9546-5fc3a510d1a5

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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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