TrojanDownloader_O97M_Donoff_207

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,10 00 10 00 10 00 00

rule TrojanDownloader_O97M_Donoff_207{
	meta:
		description = "TrojanDownloader:O97M/Donoff,SIGNATURE_TYPE_MACROHSTR_EXT,10 00 10 00 10 00 00 "
		
	strings :
		$a_01_0 = {61 73 68 75 72 20 3d 20 63 72 61 6d 70 2e 63 75 72 72 65 6e 74 65 2e 43 6f 6e 74 72 6f 6c 54 69 70 54 65 78 74 } 		$a_01_1 = {6f 70 69 61 74 65 20 3d 20 61 63 6b 6e 6f 77 6c 65 64 67 6d 65 6e 74 2e 61 70 6f 6c 6c 6f 28 61 73 68 75 72 29 } 		$a_01_2 = {3d 20 54 68 69 73 44 6f 63 75 6d 65 6e 74 2e 50 61 74 68 } 		$a_01_3 = {26 20 22 2f 22 20 26 20 54 68 69 73 44 6f 63 75 6d 65 6e 74 2e 4e 61 6d 65 } 		$a_01_4 = {46 6f 72 20 63 6f 6d 70 61 72 61 62 6c 65 20 3d 20 30 20 54 6f 20 6b 69 74 63 68 65 6e 65 74 74 65 } 		$a_01_5 = {53 65 6c 65 63 74 20 43 61 73 65 20 63 6f 6d 70 61 72 61 62 6c 65 } 		$a_01_6 = {43 61 73 65 20 36 35 20 54 6f 20 39 30 } 		$a_01_7 = {73 6e 75 66 66 63 6f 6c 6f 72 65 64 28 63 6f 6d 70 61 72 61 62 6c 65 29 20 3d 20 63 6f 6d 70 61 72 61 62 6c 65 20 2d 20 36 35 } 		$a_01_8 = {43 61 73 65 20 39 37 20 54 6f 20 6d 69 73 65 72 69 61 } 		$a_01_9 = {73 6e 75 66 66 63 6f 6c 6f 72 65 64 28 63 6f 6d 70 61 72 61 62 6c 65 29 20 3d 20 63 6f 6d 70 61 72 61 62 6c 65 20 2d 20 37 31 } 		$a_01_10 = {43 61 73 65 20 34 38 20 54 6f 20 35 37 } 		$a_01_11 = {73 6e 75 66 66 63 6f 6c 6f 72 65 64 28 63 6f 6d 70 61 72 61 62 6c 65 29 20 3d 20 63 6f 6d 70 61 72 61 62 6c 65 20 2b 20 34 } 		$a_01_12 = {43 61 73 65 20 34 33 } 		$a_01_13 = {73 6e 75 66 66 63 6f 6c 6f 72 65 64 28 63 6f 6d 70 61 72 61 62 6c 65 29 20 3d 20 36 32 } 		$a_01_14 = {43 61 73 65 20 34 37 } 		$a_01_15 = {73 6e 75 66 66 63 6f 6c 6f 72 65 64 28 63 6f 6d 70 61 72 61 62 6c 65 29 20 3d 20 36 33 } 	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+(#a_01_8  & 1)*1+(#a_01_9  & 1)*1+(#a_01_10  & 1)*1+(#a_01_11  & 1)*1+(#a_01_12  & 1)*1+(#a_01_13  & 1)*1+(#a_01_14  & 1)*1+(#a_01_15  & 1)*1) >=16
 
}

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

3172a09e-f088-49ad-b775-fc71b689c671

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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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