TrojanDownloader_O97M_EncDoc_OSTP_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/EncDoc.OSTP!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00

rule TrojanDownloader_O97M_EncDoc_OSTP_MTB{
	meta:
		description = "TrojanDownloader:O97M/EncDoc.OSTP!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {68 74 74 70 3a 2f 2f 77 69 6e 74 65 72 74 69 6d 65 2e 77 65 62 73 69 74 65 2f 66 65 2f 30 37 38 32 37 30 2e 6a 73 65 } 		$a_01_1 = {55 52 4c 44 6f 77 6e 6c 6f 61 64 54 6f 46 69 6c 65 41 } 		$a_01_2 = {53 68 65 6c 6c 45 78 65 63 75 74 65 41 } 		$a_01_3 = {43 3a 5c 41 76 61 73 74 5c 4c 6f 67 73 5c 6d 65 74 61 73 74 61 2e 6d 65 } 	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 ]]

7e6faf4b-3dcf-4a3a-bb5a-3d0ea665a7a8

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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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