TrojanDownloader_O97M_Donoff_199

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,08 00 08 00 08 00 00

rule TrojanDownloader_O97M_Donoff_199{
	meta:
		description = "TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,08 00 08 00 08 00 00 "
		
	strings :
		$a_01_0 = {46 6f 72 20 48 6d 37 6f 4d 6b 65 52 56 20 3d 20 30 20 54 6f 20 4c 65 6e 28 4d 61 63 63 6a 78 4b 29 } 		$a_01_1 = {59 58 30 67 20 3d 20 28 59 58 30 67 20 2b 20 31 29 20 4d 6f 64 20 32 35 36 } 		$a_01_2 = {4d 51 51 73 4c 75 31 42 54 58 38 44 71 30 20 3d 20 28 4d 51 51 73 4c 75 31 42 54 58 38 44 71 30 20 2b 20 4c 38 41 4b 5a 44 36 36 62 42 37 57 28 59 58 30 67 29 29 20 4d 6f 64 20 32 35 36 } 		$a_01_3 = {54 53 47 5a 62 43 74 78 49 4f 20 3d 20 4c 38 41 4b 5a 44 36 36 62 42 37 57 28 59 58 30 67 29 } 		$a_01_4 = {4c 38 41 4b 5a 44 36 36 62 42 37 57 28 59 58 30 67 29 20 3d 20 4c 38 41 4b 5a 44 36 36 62 42 37 57 28 4d 51 51 73 4c 75 31 42 54 58 38 44 71 30 29 } 		$a_01_5 = {4c 38 41 4b 5a 44 36 36 62 42 37 57 28 4d 51 51 73 4c 75 31 42 54 58 38 44 71 30 29 20 3d 20 54 53 47 5a 62 43 74 78 49 4f } 		$a_01_6 = {50 77 4c 69 79 59 56 54 43 4a 39 48 4e 46 28 48 6d 37 6f 4d 6b 65 52 56 29 20 3d 20 50 77 4c 69 79 59 56 54 43 4a 39 48 4e 46 28 48 6d 37 6f 4d 6b 65 52 56 29 20 58 6f 72 20 28 4c 38 41 4b 5a 44 36 36 62 42 37 57 28 28 4c 38 41 4b 5a 44 36 36 62 42 37 57 28 59 58 30 67 29 20 2b 20 4c 38 41 4b 5a 44 36 36 62 42 37 57 28 4d 51 51 73 4c 75 31 42 54 58 38 44 71 30 29 29 20 4d 6f 64 20 32 35 36 29 29 } 		$a_01_7 = {4e 65 78 74 20 48 6d 37 6f 4d 6b 65 52 56 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1+(#a_01_5  & 1)*1+(#a_01_6  & 1)*1+(#a_01_7  & 1)*1) >=8
 
}

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

f4b65e33-2d5f-4ddf-9b39-507d371970a5

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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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