TrojanDownloader_O97M_Donoff_P_MSR_2

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff.P!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 04 00 06 00 00

rule TrojanDownloader_O97M_Donoff_P_MSR_2{
	meta:
		description = "TrojanDownloader:O97M/Donoff.P!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 04 00 06 00 00 "
		
	strings :
		$a_00_0 = {3d 20 43 68 72 24 28 39 39 29 20 26 20 43 68 72 24 28 31 30 31 29 20 26 20 43 68 72 24 28 31 31 34 29 20 26 20 43 68 72 24 28 31 31 36 29 20 26 20 43 68 72 24 28 31 31 37 29 20 26 20 43 68 72 24 28 31 31 36 29 20 26 20 43 68 72 24 28 31 30 35 29 20 26 20 43 68 72 24 28 31 30 38 29 20 26 20 43 68 72 24 28 33 32 29 20 26 20 43 68 72 24 28 34 35 29 20 26 20 43 68 72 24 28 31 30 30 29 20 26 20 43 68 72 24 28 31 30 31 29 20 26 20 43 68 72 24 28 39 39 29 20 26 20 43 68 72 24 28 31 31 31 29 20 26 20 43 68 72 24 28 31 30 30 29 20 26 20 43 68 72 24 28 31 30 31 29 20 26 20 43 68 72 24 28 33 32 29 20 26 20 43 68 72 24 28 34 35 29 20 26 20 43 68 72 24 28 31 30 32 29 20 26 20 43 68 72 24 28 33 32 29 } 		$a_00_1 = {3d 20 65 63 75 31 6f 70 20 26 20 63 66 69 6c 65 73 20 26 20 22 69 6d 61 67 65 30 30 35 2e 6a 70 67 20 22 20 26 20 63 66 69 6c 65 73 20 26 20 22 4b 37 55 49 2e 64 6c 6c 22 } 		$a_00_2 = {3d 20 6f 62 6a 50 72 6f 63 65 73 73 2e 43 72 65 61 74 65 28 63 66 69 6c 65 73 20 26 20 22 49 6e 74 65 6c 2e 65 78 65 22 2c 20 4e 75 6c 6c 2c 20 6f 62 6a 43 6f 6e 66 69 67 2c 20 69 6e 74 50 72 6f 63 65 73 73 49 44 29 } 		$a_00_3 = {73 74 72 43 6f 6d 70 75 74 65 72 20 3d 20 22 2e 22 } 		$a_00_4 = {53 65 74 20 6f 62 6a 53 74 61 72 74 75 70 20 3d 20 6f 62 6a 57 4d 49 53 65 72 76 69 63 65 2e 47 65 74 28 22 57 69 6e 33 32 5f 50 72 6f 63 65 73 73 53 74 61 72 74 75 70 22 29 } 		$a_00_5 = {6f 62 6a 43 6f 6e 66 69 67 2e 53 68 6f 77 57 69 6e 64 6f 77 20 3d 20 48 49 44 44 45 4e 5f 57 49 4e 44 4f 57 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_00_4  & 1)*1+(#a_00_5  & 1)*1) >=4
 
}

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

3a32adac-b054-4db2-8f21-fd5143a73965

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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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