TrojanDownloader_O97M_Obfuse_AK_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.AK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00

rule TrojanDownloader_O97M_Obfuse_AK_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.AK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {6f 33 20 3d 20 52 65 70 6c 61 63 65 28 4a 6f 69 6e 28 71 54 2c 20 22 22 29 2c 20 6b 6d 2c 20 22 22 29 } 		$a_01_1 = {71 54 20 3d 20 53 70 6c 69 74 28 6f 33 2c 20 43 42 29 } 		$a_01_2 = {52 52 2e 4b 20 22 72 65 67 73 76 72 22 20 26 20 33 32 20 26 20 22 20 22 20 26 20 45 28 49 2c 20 31 29 } 		$a_01_3 = {55 52 4c 44 6f 77 6e 6c 6f 61 64 54 6f 46 69 6c 65 20 30 2c 20 50 36 2c 20 6d 63 2c 20 30 2c 20 30 } 	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 ]]

7520226d-6c20-4bdb-9de8-c4fa3e2f3204

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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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