TrojanDownloader_O97M_Obfuse_NY_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.NY!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 06 00 00

rule TrojanDownloader_O97M_Obfuse_NY_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.NY!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 06 00 00 "
		
	strings :
		$a_03_0 = {3d 20 47 65 74 4f 62 6a 65 63 74 28 [0-35] 28 [0-35] 28 22 [0-35] 77 69 [0-10] 6e [0-20] 6d 67 6d [0-10] 74 73 3a [0-20] 57 [0-10] 69 6e 33 32 [0-10] 5f 50 [0-35] 72 6f [0-10] 63 65 [0-10] 73 73 [0-20] 22 29 29 29 } 		$a_03_1 = {3d 20 47 65 74 4f 62 6a 65 63 74 28 [0-35] 28 [0-35] 28 22 [0-20] 77 [0-35] 69 [0-20] 6e [0-20] 6d 67 6d [0-10] 74 73 3a [0-20] 57 [0-10] 69 6e 33 32 [0-10] 5f 50 [0-20] 72 6f [0-10] 63 65 [0-20] 73 73 [0-20] 22 29 29 29 } 		$a_03_2 = {3d 20 47 65 74 4f 62 6a 65 63 74 28 [0-35] 28 [0-35] 28 22 [0-35] 77 [0-35] 69 [0-10] 6e [0-10] 6d 67 6d [0-10] 74 73 3a [0-20] 57 [0-20] 69 6e 33 32 [0-10] 5f 50 [0-35] 72 6f [0-10] 63 65 [0-35] 73 [0-35] 73 [0-35] 22 29 29 29 } 		$a_03_3 = {3d 20 47 65 74 4f 62 6a 65 63 74 28 [0-35] 28 [0-35] 28 22 [0-35] 77 [0-35] 69 [0-10] 6e [0-10] 6d [0-20] 67 6d [0-10] 74 73 3a [0-20] 57 [0-10] 69 6e [0-10] 33 32 [0-10] 5f 50 [0-35] 72 6f [0-10] 63 65 [0-35] 73 [0-20] 73 [0-35] 22 29 29 29 } 		$a_03_4 = {2e 43 72 65 61 74 65 28 [0-38] 28 22 70 22 } 		$a_01_5 = {2c 20 4d 53 46 6f 72 6d 73 2c 20 54 65 78 74 42 6f 78 22 } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1+(#a_03_3  & 1)*1+(#a_03_4  & 1)*1+(#a_01_5  & 1)*1) >=3
 
}

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

4906849d-8352-4904-8d65-3d586f071968

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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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