TrojanDownloader_O97M_Donoff_CJ

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Donoff_CJ{
	meta:
		description = "TrojanDownloader:O97M/Donoff.CJ,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_03_0 = {46 6f 72 6d 61 74 47 55 49 44 28 42 79 52 65 66 20 69 6e 47 55 49 44 20 41 73 20 53 74 72 69 6e 67 29 20 41 73 20 53 74 72 69 6e 67 [0-05] 90 1d 30 00 20 3d 20 22 90 12 1f 00 69 63 72 6f 90 12 1f 00 6f 66 74 2e 90 12 1f 00 64 6f 64 62 2e 90 12 1f 00 74 72 } 		$a_03_1 = {3d 20 47 6f 64 90 1d 0f 00 28 90 1d 2f 00 20 2b 20 22 5c 90 12 1f 00 2e 64 6c 6c 22 2c 20 22 90 12 1f 00 22 2c 20 22 90 11 01 00 22 29 } 		$a_01_2 = {46 6f 72 20 69 20 3d 20 31 20 54 6f 20 4c 65 6e 28 54 72 69 6d 28 22 63 65 63 65 73 22 29 29 } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_01_2  & 1)*1) >=3
 
}

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

45bac8d4-27bf-4406-aeb1-d4ee12d93861

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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 ]]

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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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