TrojanDownloader_O97M_Donoff_M

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Donoff_M{
	meta:
		description = "TrojanDownloader:O97M/Donoff.M,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {68 74 74 70 52 65 71 75 65 73 74 2e 4f 70 65 6e 20 43 68 72 28 37 31 29 20 26 20 43 68 72 28 36 39 29 20 26 20 43 68 72 28 38 34 29 2c 20 43 68 72 28 31 30 34 29 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 43 68 72 28 35 38 29 20 26 20 43 68 72 28 34 37 29 20 26 20 43 68 72 28 34 37 29 20 26 20 43 68 72 28 31 30 35 29 20 26 20 43 68 72 28 31 31 35 29 20 26 20 22 6b 22 20 26 20 43 68 72 28 31 31 31 29 20 26 20 43 68 72 28 31 30 37 29 20 26 20 43 68 72 28 31 31 31 29 } 		$a_03_1 = {74 65 6d 70 46 69 6c 65 20 3d 20 74 65 6d 70 46 6f 6c 64 65 72 20 2b 20 22 5c [0-10] 2e 65 78 65 22 } 		$a_01_2 = {74 65 6d 70 46 6f 6c 64 65 72 20 3d 20 70 72 6f 63 65 73 73 45 6e 76 28 22 54 22 20 26 20 43 68 72 28 36 39 29 20 26 20 43 68 72 28 37 37 29 20 26 20 43 68 72 28 38 30 29 29 } 	condition:
		((#a_01_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 ]]

fbbb5ab7-6353-4c7c-9172-73ef39d3324d

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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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