TrojanDownloader_O97M_Obfuse_RSG_MTB

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Obfuse_RSG_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.RSG!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 73 63 72 69 70 74 2e 73 68 65 6c 6c 22 29 } 		$a_01_1 = {43 61 6c 6c 20 63 34 65 38 33 61 37 62 2e 65 78 65 63 28 61 39 35 31 38 61 66 64 29 } 		$a_01_2 = {62 64 61 63 35 31 31 61 2e 4f 70 65 6e 20 22 47 45 54 22 2c 20 62 61 65 64 63 31 65 37 28 31 29 2c 20 46 61 6c 73 65 } 		$a_01_3 = {4d 53 58 4d 4c 32 2e 58 4d 4c 48 54 54 50 36 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 ]]

c61793eb-1ed2-4e4f-a669-98760aac1b79

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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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