TrojanDownloader_O97M_Obfuse_JAK_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.JAK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,07 00 07 00 06 00 00

rule TrojanDownloader_O97M_Obfuse_JAK_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.JAK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,07 00 07 00 06 00 00 "
		
	strings :
		$a_01_0 = {53 74 61 72 74 2d 53 6c 65 65 70 20 31 37 } 		$a_01_1 = {45 58 45 43 28 22 63 6d 64 20 2f 63 20 70 5e 6f 77 65 72 73 68 65 6c 6c 20 2d 77 20 31 20 28 6e 45 77 2d 6f 42 6a 65 63 54 20 4e 65 74 2e 57 65 62 63 4c 60 49 45 4e 74 29 } 		$a_03_2 = {63 64 20 24 65 6e 56 60 3a 54 45 4d 60 50 3b 20 2e 5c [0-06] 2e 62 61 74 22 29 } 		$a_03_3 = {28 27 44 6f 77 6e 27 2b 27 6c 6f 61 64 46 69 6c 65 27 29 2e 22 22 49 6e 76 6f 6b 65 22 22 28 27 68 74 74 70 73 3a 2f 2f 74 69 6e 79 75 72 6c 2e 63 6f 6d 2f 79 32 73 77 65 75 7a 63 27 2c 27 [0-06] 2e 62 61 74 27 29 22 29 } 		$a_03_4 = {28 27 44 6f 77 6e 27 2b 27 6c 6f 61 64 46 69 6c 65 27 29 2e 22 22 49 6e 76 6f 6b 65 22 22 28 27 68 74 74 70 73 3a 2f 2f 74 69 6e 79 75 72 6c 2e 63 6f 6d 2f 79 79 66 76 68 6a 6d 76 27 2c 27 [0-06] 2e 62 61 74 27 29 22 29 } 		$a_03_5 = {28 27 44 6f 77 6e 27 2b 27 6c 6f 61 64 46 69 6c 65 27 29 2e 22 22 49 6e 76 6f 6b 65 22 22 28 27 68 74 74 70 73 3a 2f 2f 74 69 6e 79 75 72 6c 2e 63 6f 6d 2f 79 79 39 35 64 70 32 68 27 2c 27 [0-06] 2e 62 61 74 27 29 22 29 } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*2+(#a_03_2  & 1)*2+(#a_03_3  & 1)*1+(#a_03_4  & 1)*1+(#a_03_5  & 1)*1) >=7
 
}

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

155812aa-7e33-4c7a-bd0b-3d478b374e38

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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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