TrojanDownloader_O97M_Obfuse_VIS_MTB_6

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Obfuse_VIS_MTB_6{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.VIS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {43 61 6c 6c 20 53 79 6e 64 69 63 61 74 65 28 29 } 		$a_01_1 = {38 33 29 2c 20 31 30 33 29 2c 20 36 36 29 2c 20 36 36 29 2c 20 36 35 29 2c 20 36 39 29 2c 20 37 33 29 2c 20 36 35 29 2c 20 31 30 31 29 2c 20 38 31 29 2c 20 36 36 29 2c 20 36 36 29 2c 20 36 35 29 2c 20 36 39 29 2c 20 39 39 29 2c 20 36 35 29 2c 20 38 36 29 2c 20 38 31 29 2c 20 36 36 29 2c 20 36 36 29 2c 20 36 35 29 2c 20 37 31 29 2c 20 37 37 29 2c 20 36 35 29 2c 20 38 35 29 2c 20 38 31 29 2c 20 36 36 29 2c 20 36 36 29 2c 20 36 35 29 2c 20 37 31 } 		$a_01_2 = {39 39 29 2c 20 36 35 29 2c 20 38 31 29 2c 20 38 31 29 2c 20 36 36 29 2c 20 36 39 29 2c 20 36 35 29 2c 20 36 38 29 2c 20 36 35 29 2c 20 36 35 29 2c 20 38 31 29 2c 20 38 31 29 2c 20 36 36 29 2c 20 37 34 29 2c 20 36 35 29 2c 20 36 39 29 2c 20 36 39 29 2c 20 36 35 29 2c 20 38 31 29 2c 20 31 30 33 29 2c 20 36 36 29 2c 20 31 30 35 29 2c 20 36 35 29 2c 20 36 39 29 2c 20 36 39 29 2c 20 36 35 29 2c 20 38 32 29 2c 20 31 30 33 29 2c 20 36 36 29 2c 20 37 38 29 } 		$a_01_3 = {36 35 29 2c 20 36 39 29 2c 20 36 39 29 2c 20 36 35 29 2c 20 39 30 29 2c 20 38 31 29 2c 20 36 36 29 2c 20 38 32 29 2c 20 36 35 29 2c 20 36 39 29 2c 20 37 33 29 2c 20 36 35 29 2c 20 31 30 31 29 2c 20 31 30 33 29 2c 20 36 36 29 2c 20 36 36 29 2c 20 36 35 29 2c 20 36 39 29 2c 20 31 30 33 29 2c 20 36 35 29 2c 20 38 35 29 2c 20 38 31 29 2c 20 36 36 29 2c 20 36 36 29 2c 20 36 35 29 2c 20 37 30 29 2c 20 31 31 31 29 2c 20 36 35 29 2c 20 38 35 29 2c 20 38 31 29 } 		$a_01_4 = {52 65 44 69 6d 20 62 4f 75 74 28 28 28 28 55 42 6f 75 6e 64 28 62 49 6e 29 20 2b 20 31 29 20 5c 20 34 29 20 2a 20 33 29 20 2d 20 31 29 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1) >=5
 
}

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

d00d9f97-3ad0-4c1a-94d9-fbeb329a7afb

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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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