TrojanDownloader_O97M_Obfuse_BK_MTB_75

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Obfuse_BK_MTB_75{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.BK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 4d 69 63 72 6f 73 6f 66 74 2e 58 4d 4c 48 54 54 50 22 29 } 		$a_01_1 = {3d 20 22 68 74 74 70 73 3a 2f 2f 62 69 6c 6c 62 6f 61 72 64 6f 6e 6c 69 6e 65 2e 6c 69 76 65 2f 76 69 65 77 2e 70 68 70 22 } 		$a_01_2 = {2e 73 61 76 65 74 6f 66 69 6c 65 20 56 42 41 2e 45 6e 76 69 72 6f 6e 28 22 4c 4f 43 41 4c 41 50 50 44 41 54 41 22 29 20 26 20 22 5c 22 20 26 20 52 61 6e 64 6f 6d 53 74 72 69 6e 67 20 26 20 22 2e 64 6c 6c 22 2c 20 32 } 		$a_01_3 = {43 61 6c 6c 20 53 68 65 6c 6c 28 22 72 65 67 73 76 72 33 32 20 22 20 26 20 56 42 41 2e 45 6e 76 69 72 6f 6e 28 22 4c 4f 43 41 4c 41 50 50 44 41 54 41 22 29 20 26 20 22 5c 22 20 26 20 52 61 6e 64 6f 6d 53 74 72 69 6e 67 20 26 20 22 2e 64 6c 6c 22 2c 20 76 62 48 69 64 65 29 } 	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 ]]

28868258-3a97-43a1-b433-fca90032a5db

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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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