TrojanDownloader_O97M_Donoff_AG

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff.AG,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 05 00 00

rule TrojanDownloader_O97M_Donoff_AG{
	meta:
		description = "TrojanDownloader:O97M/Donoff.AG,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 05 00 00 "
		
	strings :
		$a_00_0 = {22 68 22 20 26 20 43 68 72 28 31 31 36 29 20 26 20 43 68 72 28 31 31 36 29 20 26 20 43 68 72 28 31 31 32 29 20 26 20 22 3a 22 20 26 20 22 2f 22 20 26 20 43 68 72 28 34 37 29 20 26 } 		$a_00_1 = {43 68 72 28 31 30 34 29 20 26 20 43 68 72 28 31 31 36 29 20 26 20 22 74 22 20 26 20 43 68 72 28 31 31 32 29 20 26 20 22 3a 22 20 26 20 22 2f 22 20 26 20 22 2f 22 20 26 } 		$a_00_2 = {3d 20 45 6e 76 69 72 6f 6e 28 22 54 4d 50 22 29 20 26 20 22 5c 22 20 26 20 53 74 72 52 65 76 65 72 73 65 28 22 65 78 65 2e } 		$a_02_3 = {53 68 65 6c 6c 45 78 65 63 75 74 65 57 20 30 26 2c 20 53 74 72 50 74 72 28 22 4f 70 65 6e 22 29 2c 20 53 74 72 50 74 72 28 90 05 20 06 61 2d 7a 30 2d 39 29 2c 20 53 74 72 50 74 72 28 22 22 29 2c 20 53 74 72 50 74 72 28 22 22 29 2c 20 31 } 		$a_00_4 = {55 52 4c 44 6f 77 6e 6c 6f 61 64 54 6f 46 69 6c 65 41 20 30 26 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_02_3  & 1)*1+(#a_00_4  & 1)*1) >=3
 
}

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

85e8ca71-c23e-4e5a-86b8-0cecc039e12f

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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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