Trojan_O97M_Obfuse_AL_MTB

YARA detection rule by roadwy

Trojan:O97M/Obfuse.AL!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 06 00 00

rule Trojan_O97M_Obfuse_AL_MTB{
	meta:
		description = "Trojan:O97M/Obfuse.AL!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 06 00 00 "
		
	strings :
		$a_01_0 = {3d 20 45 6e 76 69 72 6f 6e 28 } 		$a_01_1 = {2b 20 43 68 72 28 43 4c 6e 67 28 28 77 64 54 61 62 6c 65 46 6f 72 6d 61 74 57 65 62 32 20 58 6f 72 20 77 64 4b 65 79 46 37 29 29 29 20 2b } 		$a_01_2 = {3d 20 4a 6f 69 6e 28 41 72 72 61 79 28 } 		$a_01_3 = {28 77 64 4c 61 79 6f 75 74 4d 6f 64 65 47 72 69 64 20 58 6f 72 20 77 64 4f 4d 61 74 68 48 6f 72 69 7a 41 6c 69 67 6e 4c 65 66 74 29 } 		$a_01_4 = {28 28 77 64 54 61 62 6c 65 46 6f 72 6d 61 74 57 65 62 32 20 58 6f 72 20 77 64 4b 65 79 46 37 29 29 29 20 2b 20 43 68 72 57 28 43 4c 6e 67 28 28 4e 6f 74 20 28 } 		$a_01_5 = {43 68 72 28 43 4c 6e 67 28 28 77 64 42 61 73 65 6c 69 6e 65 41 6c 69 67 6e 54 6f 70 20 4f 72 20 77 64 46 69 65 6c 64 46 6f 72 6d 44 72 6f 70 44 6f 77 6e 29 29 29 20 2b 20 43 68 72 28 43 4c 6e 67 28 28 41 73 63 57 28 22 6c 22 29 29 29 29 } 	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) >=6
 
}

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

8169dadd-cbf2-4bad-b2af-bab5423c96c1

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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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