TrojanDownloader_O97M_Obfuse_ML_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.ML!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDownloader_O97M_Obfuse_ML_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.ML!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_00_0 = {2e 4f 70 65 6e 20 22 47 45 54 22 2c 20 22 68 74 74 70 3a 2f 2f 31 38 35 2e 32 34 33 2e 32 31 35 2e 32 31 33 2f 73 79 73 5f 69 6e 66 6f 2e 76 62 73 22 } 		$a_00_1 = {73 61 76 65 74 6f 66 69 6c 65 20 22 73 79 73 5f 69 6e 66 6f 2e 76 62 73 } 		$a_00_2 = {53 68 65 6c 6c 20 22 77 73 63 72 69 70 74 20 73 79 73 5f 69 6e 66 6f 2e 76 62 73 } 		$a_00_3 = {48 74 74 70 2e 53 65 6e 64 } 		$a_00_4 = {2e 77 72 69 74 65 20 78 48 74 74 70 2e 72 65 73 70 6f 6e 73 65 42 6f 64 79 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_00_4  & 1)*1) >=5
 
}

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

a24b1b47-35f0-4d4e-9d0b-58c6d6cb93f2

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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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