TrojanDropper_O97M_Obfuse_NL_MTB

YARA detection rule by roadwy

TrojanDropper:O97M/Obfuse.NL!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDropper_O97M_Obfuse_NL_MTB{
	meta:
		description = "TrojanDropper:O97M/Obfuse.NL!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {3d 20 41 70 70 6c 69 63 61 74 69 6f 6e 2e 53 74 61 72 74 75 70 50 61 74 68 20 26 20 22 5c 22 20 26 20 22 6d 61 72 67 65 65 22 20 26 20 22 3a 22 20 26 20 41 70 70 6c 69 63 61 74 69 6f 6e 2e 56 65 72 73 69 6f 6e } 		$a_01_1 = {22 54 68 65 20 6d 6f 73 74 20 74 68 72 75 65 20 67 65 74 20 61 70 70 6c 69 63 61 74 69 6f 6e 20 69 6e 20 74 65 73 74 20 73 68 65 6c 6c 20 61 6e 64 20 73 6f 6d 65 20 70 72 6f 63 65 73 73 20 61 20 66 65 61 72 20 6f 72 20 73 63 72 69 70 74 20 74 65 73 74 20 69 74 20 61 6e 64 20 70 6f 77 65 72 20 77 69 74 68 20 65 78 65 63 75 74 65 20 2e 22 } 		$a_03_2 = {26 20 22 20 2d 46 69 6c 65 50 61 74 68 20 22 22 77 22 20 26 20 53 70 6c 69 74 28 [0-10] 2c 20 22 20 22 29 28 31 34 29 20 26 20 22 22 22 20 2d 41 72 67 75 6d 22 20 26 20 22 65 6e 74 4c 69 73 74 20 40 28 27 2f 65 3a 4a 22 } 		$a_03_3 = {26 20 53 70 6c 69 74 28 [0-10] 2c 20 22 20 22 29 28 31 34 29 20 26 20 22 27 2c 27 5c 22 22 22 20 26 20 53 74 61 74 75 73 42 61 72 32 20 26 20 22 22 22 27 29 22 2c 20 45 6d 70 74 79 2c 20 45 6d 70 74 79 2c 20 30 } 		$a_01_4 = {4d 73 67 42 6f 78 20 22 46 61 69 6c 65 64 20 74 6f 20 63 6f 6d 62 69 6e 65 20 61 6c 6c 20 50 44 46 73 22 2c 20 76 62 43 72 69 74 69 63 61 6c 2c 20 22 46 61 69 6c 65 64 20 74 6f 20 4d 65 72 67 65 20 50 44 46 73 22 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_03_2  & 1)*1+(#a_03_3  & 1)*1+(#a_01_4  & 1)*1) >=5
 
}

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

68f18e93-25af-4774-99a3-b7fc5d14c502

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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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