TrojanDownloader_O97M_Obfuse_PRDD_MTB_2

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.PRDD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,09 00 09 00 09 00 00

rule TrojanDownloader_O97M_Obfuse_PRDD_MTB_2{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.PRDD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,09 00 09 00 09 00 00 "
		
	strings :
		$a_01_0 = {53 65 74 20 6f 62 6a 53 68 65 6c 6c 20 3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 } 		$a_01_1 = {6f 62 6a 53 68 65 6c 6c 2e 52 75 6e 20 28 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 29 } 		$a_01_2 = {53 65 74 20 6f 62 6a 53 68 65 6c 6c 20 3d 20 4e 6f 74 68 69 6e 67 } 		$a_01_3 = {3d 20 45 6e 76 69 72 6f 6e 28 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 2e 45 6d 61 69 6c 53 75 62 6a 65 63 74 29 } 		$a_01_4 = {53 74 72 43 6f 6d 70 28 22 52 39 38 32 68 64 30 32 33 75 66 64 68 32 39 6b 22 2c } 		$a_01_5 = {3d 20 43 42 79 74 65 28 22 26 48 22 20 26 20 4d 69 64 28 41 41 41 41 41 41 41 41 41 41 41 41 41 41 2c 20 35 2c 20 32 29 29 } 		$a_01_6 = {3d 20 53 74 72 69 6e 67 28 36 20 2d 20 4c 65 6e 28 41 41 41 41 41 41 41 41 41 41 41 41 41 41 29 2c 20 22 30 22 29 20 26 20 41 41 41 41 41 41 41 41 41 41 41 41 41 41 } 		$a_01_7 = {73 75 62 53 61 76 65 42 69 6e 61 72 79 44 61 74 61 20 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 2c 20 62 62 79 74 65 73 } 		$a_01_8 = {73 75 62 52 75 6e 20 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 } 	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 ]]

cf09e3d6-4dee-4ea3-bbc4-d72ba19de048

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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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