TrojanDropper_O97M_Powdow_BTCC_MTB

YARA detection rule by roadwy

TrojanDropper:O97M/Powdow.BTCC!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDropper_O97M_Powdow_BTCC_MTB{
	meta:
		description = "TrojanDropper:O97M/Powdow.BTCC!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_03_0 = {3d 20 4e 65 77 20 57 73 68 53 68 65 6c 6c [0-20] 2e 72 75 6e 20 [0-20] 45 6e 64 20 46 75 6e 63 74 69 6f 6e } 		$a_03_1 = {3d 20 41 63 74 69 76 65 44 6f 63 75 6d 65 6e 74 2e 42 75 69 6c 74 49 6e 44 6f 63 75 6d 65 6e 74 50 72 6f 70 65 72 74 69 65 73 28 22 4d 61 6e 61 67 65 72 22 29 2e 56 61 6c 75 65 [0-20] 20 3d 20 53 74 72 52 65 76 65 72 73 65 28 [0-15] 29 90 0c 02 00 45 6e 64 20 46 75 6e 63 74 69 6f 6e } 		$a_03_2 = {54 72 69 6d 28 [0-20] 29 90 0c 02 00 57 69 74 68 20 41 63 74 69 76 65 44 6f 63 75 6d 65 6e 74 2e 43 6f 6e 74 65 6e 74 2e 46 69 6e 64 90 0c 02 00 2e 45 78 65 63 75 74 65 20 46 69 6e 64 54 65 78 74 3a 3d 22 23 29 22 2c 20 52 65 70 6c 61 63 65 57 69 74 68 3a 3d } 		$a_03_3 = {52 65 70 6c 61 63 65 3a 3d 77 64 52 65 70 6c 61 63 65 41 6c 6c 90 0c 02 00 45 6e 64 20 57 69 74 68 } 		$a_03_4 = {41 63 74 69 76 65 44 6f 63 75 6d 65 6e 74 2e 53 61 76 65 41 73 32 20 46 69 6c 65 4e 61 6d 65 3a 3d [0-20] 2c 20 46 69 6c 65 46 6f 72 6d 61 74 3a 3d 77 64 46 6f 72 6d 61 74 54 65 78 74 90 0c 02 00 73 20 [0-20] 45 6e 64 20 53 75 62 } 	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) >=5
 
}

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

a69bd5c6-6de6-42ba-b9f7-069dad0b8788

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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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