TrojanDownloader_O97M_Obfuse_YF_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.YF!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00

rule TrojanDownloader_O97M_Obfuse_YF_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.YF!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {68 74 74 70 3a 2f 2f 34 30 2e 31 32 35 2e 36 35 2e 33 33 2f 61 73 79 6e 63 2e 65 78 65 } 		$a_01_1 = {61 73 79 6e 63 2e 65 78 65 22 2c 20 32 20 27 20 31 } 		$a_01_2 = {41 63 74 69 76 65 57 6f 72 6b 62 6f 6f 6b 2e 50 61 74 68 20 26 20 22 5c 61 73 79 6e 63 2e 65 78 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1) >=3
 
}

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

343dfd29-a4bb-4aa3-b3cd-2aaf812ce5a5

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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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