TrojanDownloader_O97M_Donoff_BE

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff.BE,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00

rule TrojanDownloader_O97M_Donoff_BE{
	meta:
		description = "TrojanDownloader:O97M/Donoff.BE,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {3d 20 53 70 6c 69 74 28 22 37 32 38 5f 38 31 32 5f 38 31 32 5f 37 38 34 5f 34 30 36 5f 33 32 39 5f 33 32 39 5f } 		$a_01_1 = {2c 20 22 3a 3a 22 29 } 		$a_01_2 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 } 		$a_01_3 = {22 5f 22 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 ]]

1c854cba-8fd3-4c7f-a4b9-139de17229ef

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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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