TrojanDownloader_O97M_Obfuse_BK_MTB_42

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Obfuse_BK_MTB_42{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.BK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {3d 20 22 63 63 3a 36 5c 31 70 36 72 63 6f 61 67 31 72 65 61 62 6d 37 64 66 61 33 74 61 61 38 5c 36 36 37 32 37 36 66 31 39 37 64 2e 33 6a 31 70 37 67 64 22 } 		$a_01_1 = {53 65 74 20 61 66 64 64 38 64 31 61 20 3d 20 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_2 = {43 61 6c 6c 20 61 66 64 64 38 64 31 61 2e 65 78 65 63 28 63 30 37 65 63 32 65 38 20 26 20 22 20 22 20 26 20 65 61 63 39 31 38 65 31 28 62 30 38 66 30 62 61 31 29 29 } 	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 ]]

634b08da-dced-44c8-998c-0bbe99d31822

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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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