TrojanDownloader_O97M_Blokyst_A

YARA detection rule by roadwy

TrojanDownloader:O97M/Blokyst.A,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 02 00 00

rule TrojanDownloader_O97M_Blokyst_A{
	meta:
		description = "TrojanDownloader:O97M/Blokyst.A,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 02 00 00 "
		
	strings :
		$a_00_0 = {22 5c 41 70 22 20 2b 20 22 70 44 61 22 20 2b 20 22 74 61 5c 52 6f 61 22 20 2b 20 22 6d 69 6e 67 22 20 26 20 22 5c 22 } 		$a_00_1 = {27 25 41 50 50 44 41 54 41 25 5c 66 6f 27 20 2b 20 27 6c 64 31 27 20 2b 20 27 5c 70 72 69 27 20 2b 20 27 6e 74 65 72 2e 65 27 20 2b 20 27 78 65 27 29 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1) >=1
 
}

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

733d413e-27c3-4893-8437-ed59176acfb4

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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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