TrojanDownloader_O97M_Donoff_169

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 03 00 00

rule TrojanDownloader_O97M_Donoff_169{
	meta:
		description = "TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 03 00 00 "
		
	strings :
		$a_01_0 = {4b 49 54 4c 51 54 52 58 47 48 52 53 57 4a 59 4f 56 4d 50 59 44 58 4e 4c 4c 4b 4e 47 2e 41 64 64 20 45 59 4f 54 54 53 56 4e 4b 4f 44 4a 4a 52 53 55 51 44 4b 48 59 50 51 42 50 52 59 45 28 22 } 		$a_01_1 = {42 4a 4c 4d 49 55 4a 59 51 4f 49 53 4f 4a 51 56 4e 4d 47 5a 4e 59 46 4c 44 4c 45 47 20 3d 20 43 68 72 28 41 73 63 28 42 4a 4c 4d 49 55 4a 59 51 4f 49 53 4f 4a 51 56 4e 4d 47 5a 4e 59 46 4c 44 4c 45 47 29 20 2d 20 58 46 4a 4b 4f 42 58 4d 4e 45 48 51 55 50 46 44 44 43 46 58 42 45 4d 5a 5a 49 44 45 29 } 		$a_01_2 = {74 80 80 7c 46 3b 3b 83 83 83 3a 76 7b 7f 7f 85 7e 6d 85 3a 6f 7b 79 3b 6f 7b 70 71 3b 7f 80 85 78 71 3b 75 79 6d 73 71 7f 3b 50 71 6e 75 80 2c 4d 78 71 7e 80 3a 71 84 71 22 29 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1) >=1
 
}

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

32204d27-d6c3-4d9d-8395-aa343895cfd1

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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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