TrojanDropper_O97M_Obfuse_QU_MTB

YARA detection rule by roadwy

TrojanDropper:O97M/Obfuse.QU!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDropper_O97M_Obfuse_QU_MTB{
	meta:
		description = "TrojanDropper:O97M/Obfuse.QU!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_03_0 = {3d 20 45 6e 76 69 72 6f 6e 24 28 22 55 53 45 52 50 52 4f 46 49 4c 45 22 29 20 26 20 22 [0-30] 2e 65 78 65 22 } 		$a_03_1 = {26 20 22 5c [0-08] 2e 74 78 74 22 } 		$a_01_2 = {66 69 6c 65 2e 77 72 69 74 65 6c 69 6e 65 20 28 54 65 78 74 42 6f 78 31 2e 54 65 78 74 29 } 		$a_03_3 = {2e 46 6f 6c 64 65 72 45 78 69 73 74 73 28 [0-15] 29 20 54 68 65 6e } 		$a_03_4 = {4f 70 65 6e 20 [0-15] 20 46 6f 72 20 49 6e 70 75 74 20 41 73 20 23 } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_01_2  & 1)*1+(#a_03_3  & 1)*1+(#a_03_4  & 1)*1) >=5
 
}

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

5ccaef1c-7b51-4468-b746-ad773cfe320c

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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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