TrojanDownloader_O97M_Obfuse_AX_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.AX!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,07 00 07 00 07 00 00

rule TrojanDownloader_O97M_Obfuse_AX_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.AX!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,07 00 07 00 07 00 00 "
		
	strings :
		$a_00_0 = {53 70 6c 69 74 28 61 46 4e 32 42 6c 2c 20 43 68 72 28 31 31 20 2b 20 33 33 29 29 } 		$a_00_1 = {61 44 77 65 4a 2e 53 68 65 6c 6c 45 78 65 63 75 74 65 20 61 49 66 71 6b 2c 20 61 39 38 4e 4c 2c 20 22 20 22 2c 20 53 57 5f 53 48 4f 57 4e 4f 52 4d 41 4c } 		$a_00_2 = {22 31 31 30 2c 31 31 35 2c 31 32 33 2c 31 30 33 2c 31 30 30 2c 31 32 31 2c 31 31 30 2c 31 32 31 22 } 		$a_00_3 = {22 31 30 34 2c 34 39 2c 38 37 2c 31 32 33 2c 31 32 31 2c 31 30 30 2c 31 30 38 2c 31 32 31 2c 31 30 36 2c 31 30 32 2c 31 31 31 2c 31 30 36 2c 31 32 37 2c 31 30 36 2c 38 37 2c 31 30 36 2c 37 30 2c 31 30 30 2c 31 30 38 2c 39 32 2c 33 37 2c 39 39 2c 31 32 37 2c 31 30 36 22 } 		$a_00_4 = {43 68 72 28 61 42 4f 59 58 29 } 		$a_00_5 = {61 67 65 75 30 6f 28 61 37 7a 4d 67 28 61 62 5a 4f 6a 29 20 58 6f 72 20 31 31 29 } 		$a_00_6 = {44 69 6d 20 61 44 77 65 4a 20 41 73 20 4e 65 77 20 53 68 65 6c 6c 33 32 2e 53 68 65 6c 6c } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_00_4  & 1)*1+(#a_00_5  & 1)*1+(#a_00_6  & 1)*1) >=7
 
}

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

47e964cb-0079-48f4-a5bb-b9202090ba69

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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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