TrojanDropper_O97M_Obfuse_PRG_MTB

YARA detection rule by roadwy

TrojanDropper:O97M/Obfuse.PRG!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,0b 00 0b 00 0b 00 00

rule TrojanDropper_O97M_Obfuse_PRG_MTB{
	meta:
		description = "TrojanDropper:O97M/Obfuse.PRG!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,0b 00 0b 00 0b 00 00 "
		
	strings :
		$a_01_0 = {41 70 70 6c 69 63 61 74 69 6f 6e 2e 52 75 6e 20 28 22 41 70 70 6c 79 2e 50 69 63 6b 22 29 } 		$a_01_1 = {41 70 70 6c 69 63 61 74 69 6f 6e 2e 52 75 6e 20 28 22 53 74 61 72 74 2e 57 6f 72 6b 22 29 } 		$a_01_2 = {41 70 70 6c 69 63 61 74 69 6f 6e 2e 52 75 6e 20 28 22 57 69 6e 64 6f 77 73 2e 43 6f 6e 74 69 6e 75 65 22 29 } 		$a_01_3 = {41 70 70 6c 69 63 61 74 69 6f 6e 2e 52 75 6e 20 28 22 53 6d 61 72 74 57 6f 72 6b 2e 53 6d 61 72 74 57 6f 72 6b 22 29 } 		$a_01_4 = {73 74 72 65 61 6b 73 6d 76 35 31 20 3d 20 75 70 68 6f 6c 64 73 6e 76 35 31 20 26 20 22 2e 6d 61 22 20 26 20 22 69 6e 22 } 		$a_01_5 = {41 70 70 6c 69 63 61 74 69 6f 6e 2e 52 75 6e 20 28 73 74 72 65 61 6b 73 6d 76 35 31 29 } 		$a_01_6 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 43 68 72 24 28 38 37 29 20 26 20 22 6f 72 64 2e 41 70 22 20 26 20 22 70 6c 69 22 20 26 20 22 63 61 74 22 20 26 20 22 69 6f 6e 22 29 } 		$a_01_7 = {3d 20 22 43 3a 5c 57 69 6e 64 6f 77 73 5c 22 } 		$a_01_8 = {64 6f 73 61 67 65 64 76 32 31 36 20 3d 20 64 6f 73 61 67 65 64 76 32 31 36 20 26 20 4d 69 64 28 73 65 6e 73 6f 72 79 31 36 73 74 76 2c 20 32 32 2c 20 31 29 } 		$a_01_9 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 43 68 72 24 28 38 37 29 20 26 20 22 53 22 20 26 20 22 63 72 22 20 26 20 22 69 70 22 20 26 20 22 74 2e 22 20 26 20 22 73 68 22 20 26 20 22 65 6c 6c 22 29 } 		$a_01_10 = {2e 52 65 67 57 72 69 74 65 20 67 75 69 67 6e 6f 6c 72 67 76 35 31 2c 20 6e 65 77 56 61 6c 75 65 2c 20 22 52 45 47 5f 44 57 4f 52 44 22 } 	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) >=11
 
}

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

afedf49e-43e6-4383-99a8-c48d4ddbb214

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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 ]]

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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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