TrojanDownloader_O97M_Donoff_205

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00

rule TrojanDownloader_O97M_Donoff_205{
	meta:
		description = "TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {43 68 72 28 31 30 35 29 20 26 20 22 6c 22 20 26 20 43 68 72 28 39 39 29 20 26 20 22 61 22 20 26 20 22 73 22 20 26 20 22 61 22 20 26 20 43 68 72 28 31 30 38 29 20 26 20 43 68 72 28 31 30 31 29 20 26 20 43 68 72 28 31 31 32 29 20 26 20 43 68 72 28 31 30 35 29 20 26 20 22 63 22 20 26 20 43 68 72 28 39 37 29 20 26 20 22 2e 22 20 26 20 43 68 72 28 31 30 35 29 20 26 20 43 68 72 28 31 31 36 29 20 26 20 43 68 72 28 34 37 29 20 26 20 43 68 72 28 35 32 29 20 26 20 43 68 72 28 35 33 29 20 26 20 22 67 22 20 26 20 43 68 72 28 35 31 29 20 26 20 43 68 72 28 35 31 29 } 		$a_01_1 = {43 68 72 28 34 37 29 20 26 20 43 68 72 28 35 31 29 20 26 20 43 68 72 28 35 32 29 20 26 20 43 68 72 28 31 31 36 29 20 26 20 22 32 22 20 26 20 43 68 72 28 31 30 30 29 20 26 20 43 68 72 28 35 31 29 20 26 20 43 68 72 28 34 36 29 20 26 20 22 65 22 20 26 20 43 68 72 28 31 32 30 29 20 26 20 43 68 72 28 31 30 31 29 } 		$a_01_2 = {43 68 72 28 36 35 29 20 26 20 22 3c 22 20 26 20 22 64 22 20 26 20 43 68 72 28 31 31 31 29 20 26 20 43 68 72 28 35 39 29 20 26 20 43 68 72 28 31 30 30 29 20 26 20 43 68 72 28 39 38 29 20 26 20 43 68 72 28 36 31 29 20 26 20 43 68 72 28 34 36 29 20 26 20 43 68 72 28 38 33 29 20 26 20 43 68 72 28 31 31 36 29 20 26 20 43 68 72 28 36 31 29 20 26 20 43 68 72 28 31 31 34 29 20 26 20 43 68 72 28 36 30 29 20 26 20 43 68 72 28 31 30 31 29 20 26 20 22 61 22 20 26 20 43 68 72 28 35 39 29 20 26 20 43 68 72 28 31 30 39 29 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1) >=3
 
}

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

628cc068-da2f-484a-81b1-12c4159c23a0

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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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