TrojanDownloader_O97M_Obfuse_SS_MTB_21

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Obfuse_SS_MTB_21{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.SS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {6f 57 6f 72 64 44 6f 63 2e 53 61 76 65 41 73 20 73 50 61 74 68 20 2b 20 6d 5f 73 44 6f 63 50 72 65 66 69 78 20 2b 20 43 53 74 72 28 69 29 20 2b 20 22 2e 64 6f 63 22 } 		$a_01_1 = {53 65 74 20 47 6f 74 63 68 61 73 20 3d 20 57 69 6c 64 63 61 72 64 2e 43 72 65 61 74 65 46 6f 6c 64 65 72 28 22 43 3a 5c 52 65 71 75 69 72 65 64 5c 6f 63 63 75 72 73 22 29 } 		$a_01_2 = {53 65 74 20 41 53 43 49 49 66 69 6c 65 20 3d 20 57 69 6c 64 63 61 72 64 2e 6f 70 65 6e 74 65 78 74 66 69 6c 65 28 22 43 3a 5c 52 65 71 75 69 72 65 64 5c 44 4f 4d 44 6f 63 75 6d 65 6e 74 2e 76 62 22 20 2b 20 22 73 22 2c 20 38 2c 20 31 29 } 		$a_01_3 = {57 69 6c 64 63 61 72 64 2e 45 78 65 63 20 22 65 78 70 6c 6f 72 65 72 2e 65 78 65 20 43 3a 5c 52 65 71 75 69 72 65 64 5c 44 4f 4d 44 6f 63 75 6d 65 6e 74 2e 76 62 22 20 2b 20 22 73 22 } 	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 ]]

1dc0a1c7-4879-483e-9047-1c720b2188f2

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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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