TrojanDropper_O97M_Obfuse_PDA_MTB

YARA detection rule by roadwy

TrojanDropper:O97M/Obfuse.PDA!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,07 00 07 00 07 00 00

rule TrojanDropper_O97M_Obfuse_PDA_MTB{
	meta:
		description = "TrojanDropper:O97M/Obfuse.PDA!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,07 00 07 00 07 00 00 "
		
	strings :
		$a_01_0 = {4d 73 67 42 6f 78 20 22 65 72 72 6f 72 21 20 52 65 2d 69 6e 73 74 61 6c 6c 20 6f 66 66 69 63 65 } 		$a_01_1 = {47 65 74 28 61 73 6b 6a 64 6a 61 77 6a 6b 64 6f 6b 61 77 6f 64 29 20 5f } 		$a_01_2 = {47 65 74 4f 62 6a 65 63 74 28 6b 6f 61 6b 6f 73 64 6b 29 20 5f } 		$a_01_3 = {27 32 57 6a 54 67 68 57 27 2c 27 57 69 6e 33 32 5f 50 72 6f 63 65 73 73 53 74 61 72 74 75 70 27 2c 27 33 35 35 31 35 35 36 41 43 66 67 6d 73 27 2c 27 43 6f 70 79 46 69 6c 65 27 2c 27 31 39 30 32 39 35 34 76 79 6c 63 7a 4e 27 2c 27 47 65 74 27 2c 27 37 64 6d 76 47 4d 52 27 2c 27 53 68 6f 77 57 69 6e 64 6f 77 27 2c 27 31 35 35 73 42 7a 68 66 62 27 2c 27 77 69 6e 6d 67 6d 74 73 3a 27 } 		$a_03_4 = {43 3a 5c 78 35 63 50 72 6f 67 72 61 6d 44 61 74 61 5c 78 35 63 64 64 6f 6e 64 2e 63 6f 6d 5c 78 32 30 68 74 74 70 73 3a 2f 2f 77 77 77 2e 6d 65 64 69 61 66 69 72 65 2e 63 6f 6d 2f 66 69 6c 65 2f [0-20] 2f [0-02] 2e 68 74 6d 2f 66 69 6c 65 } 		$a_01_5 = {27 70 75 73 68 27 5d 28 5f 30 78 66 66 31 31 66 65 5b 27 73 68 69 66 74 27 5d 28 29 29 3b 7d 63 61 74 63 68 28 5f 30 78 35 38 39 62 36 61 29 } 		$a_01_6 = {43 72 65 61 74 65 20 28 22 77 73 63 72 69 70 74 20 43 3a 5c 55 73 65 72 73 5c 50 75 62 6c 69 63 5c 75 70 64 61 74 65 2e 6a 73 22 29 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_03_4  & 1)*1+(#a_01_5  & 1)*1+(#a_01_6  & 1)*1) >=7
 
}

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

c5626011-c41f-4f61-bf9d-59e253499e38

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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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