Trojan_O97M_Obfuse_BA

YARA detection rule by roadwy

Trojan:O97M/Obfuse.BA,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00

rule Trojan_O97M_Obfuse_BA{
	meta:
		description = "Trojan:O97M/Obfuse.BA,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {44 69 6d 20 77 44 54 69 49 4c 28 32 29 } 		$a_01_1 = {77 44 54 69 49 4c 28 30 29 20 3d 20 49 6e 53 74 72 52 65 76 28 6a 6c 6a 4e 77 64 20 2b 20 69 6a 73 42 49 56 4d 6b 76 4a 71 64 55 44 6a 6a 77 5a 6a 4c 20 } 		$a_01_2 = {44 69 6d 20 42 70 6a 4a 5a 63 28 33 29 } 		$a_01_3 = {44 69 6d 20 54 6c 77 6c 46 66 28 33 29 } 	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 ]]

450af974-c69d-4183-83c5-a1f9c76bef14

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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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