TrojanDownloader_O97M_Obfuse_RVE_MTB

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Obfuse_RVE_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.RVE!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_00_0 = {43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 57 53 63 22 20 2b 20 43 68 72 28 31 31 34 20 2b 20 57 44 47 63 52 20 2b 20 4f 77 69 30 77 29 20 2b 20 22 69 70 74 2e 22 20 2b 20 43 68 72 24 28 37 39 20 2b 20 4f 75 77 6f 4b 20 2b 20 5a 6e 78 57 6c 20 2b 20 34 29 20 2b 20 22 68 65 6c 6c 22 29 } 		$a_00_1 = {64 61 79 20 3d 20 44 61 74 65 56 61 6c 75 65 28 22 31 32 20 2f 20 31 32 20 2f 20 32 31 32 31 22 29 } 		$a_00_2 = {44 61 74 2e 52 75 6e 20 70 61 73 73 77 6f 72 64 2c 20 30 } 		$a_00_3 = {43 68 72 28 38 31 20 2b 20 54 57 68 7a 4e 20 2b 20 31 38 20 2b 20 32 20 2b 20 6f 47 75 52 53 20 2b 20 47 55 73 71 69 29 20 2b 20 43 68 72 28 33 32 20 2b 20 32 30 20 2b 20 31 33 20 2b 20 32 33 20 2b 20 31 20 2b 20 38 29 20 2b 20 22 72 74 68 2e 22 20 2b 20 43 68 72 28 32 38 20 2b 20 34 33 20 2b 20 32 37 29 20 2b 20 43 68 72 57 28 36 36 20 2b 20 79 5a 6a 72 50 20 2b 20 32 36 20 2b 20 35 20 2b 20 41 38 6d 77 64 29 20 2b 20 22 74 22 20 26 20 43 68 72 28 33 34 29 } 		$a_00_4 = {53 75 62 20 41 75 74 6f 4f 70 65 6e 28 29 } 	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 ]]

b24b0994-7c48-471c-8069-a12205f10f7f

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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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