TrojanDownloader_O97M_Obfuse_PRTF_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.PRTF!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00

rule TrojanDownloader_O97M_Obfuse_PRTF_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.PRTF!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00 "
		
	strings :
		$a_01_0 = {53 51 42 46 41 46 67 41 49 41 41 67 41 43 67 41 54 67 42 6c 41 48 63 41 4c 51 42 50 41 47 49 41 61 67 42 6c 41 47 4d 41 64 41 41 67 41 45 34 41 5a 51 42 30 41 43 34 41 56 77 42 6c 41 47 49 41 51 77 42 73 41 47 6b 41 5a 51 42 75 41 48 51 41 4b 51 41 75 41 45 51 41 62 77 42 33 41 47 34 41 62 41 42 76 41 47 45 41 5a 41 42 54 41 48 51 41 63 67 42 70 41 47 34 41 5a 77 41 75 41 45 6b 41 62 67 42 32 41 47 38 41 61 77 42 6c 41 43 67 } 		$a_01_1 = {41 4a 77 41 4e 41 41 6f 41 61 41 42 30 41 48 51 41 63 41 42 7a 41 44 6f 41 4c 77 41 76 41 47 51 41 59 77 41 31 41 44 4d 41 4e 77 41 75 41 44 51 41 63 77 42 35 41 47 34 41 59 77 41 75 41 47 4d 41 62 77 42 74 41 43 38 41 5a 41 42 76 41 48 63 41 62 67 42 73 41 47 38 41 59 51 42 6b 41 43 38 41 51 67 41 35 41 45 63 41 55 41 42 78 41 46 59 41 55 67 41 79 41 43 38 41 62 51 42 68 41 48 4d 41 64 41 42 6c 41 48 49 41 4c 67 42 71 41 48 41 41 5a 77 41 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1) >=2
 
}

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

547b20b1-be7b-4576-a193-1b2917a157fd

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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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