TrojanDropper_O97M_GraceWire_AP_MTB

YARA detection rule by roadwy

TrojanDropper:O97M/GraceWire.AP!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 04 00 00

rule TrojanDropper_O97M_GraceWire_AP_MTB{
	meta:
		description = "TrojanDropper:O97M/GraceWire.AP!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 04 00 00 "
		
	strings :
		$a_01_0 = {46 4d 4f 44 } 		$a_01_1 = {55 73 65 72 46 6f 72 6d 36 2e 54 65 78 74 42 6f 78 33 2e 54 61 67 20 3d 20 46 75 63 6a 69 46 69 6c 6d 2e 53 70 65 63 69 61 6c 46 6f 6c 64 65 72 73 28 55 73 65 72 46 6f 72 6d 36 2e 54 65 78 74 42 6f 78 33 2e 54 61 67 29 } 		$a_01_2 = {55 73 65 72 46 6f 72 6d 36 2e 54 65 78 74 42 6f 78 33 2e 54 61 67 20 3d 20 4b 6f 64 61 6b 2e 53 70 65 63 69 61 6c 46 6f 6c 64 65 72 73 28 22 22 20 26 20 55 73 65 72 46 6f 72 6d 36 2e 54 65 78 74 42 6f 78 33 2e 54 61 67 29 } 		$a_01_3 = {55 6e 6c 6f 61 64 20 4d 2e 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=3
 
}

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

07dce63d-a0d8-4e75-8c71-da55cc97f943

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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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