TrojanDropper_O97M_Powdow_BTCK_MTB

YARA detection rule by roadwy

TrojanDropper:O97M/Powdow.BTCK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00

rule TrojanDropper_O97M_Powdow_BTCK_MTB{
	meta:
		description = "TrojanDropper:O97M/Powdow.BTCK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_03_0 = {6b 61 72 6f 6c 69 6e 65 28 [0-20] 29 [0-20] 20 3d 20 54 68 69 73 44 6f 63 75 6d 65 6e 74 2e [0-20] 57 69 74 68 20 41 63 74 69 76 65 44 6f 63 75 6d 65 6e 74 90 0c 02 00 2e 53 61 76 65 41 73 32 20 46 69 6c 65 4e 61 6d 65 } 		$a_03_1 = {3d 20 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 6b 65 79 77 6f 72 64 73 22 29 2e 56 61 6c 75 65 90 0c 02 00 45 6e 64 20 57 69 74 68 90 0c 02 00 6b 65 79 77 6f 72 64 73 20 3d 20 53 74 72 52 65 76 65 72 73 65 28 [0-20] 29 90 0c 02 00 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 2e 45 78 65 63 75 74 65 20 46 69 6e 64 54 65 78 74 3a 3d 22 24 31 22 2c 20 52 65 70 6c 61 63 65 57 69 74 68 3a 3d [0-20] 2c 20 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 46 75 6e 63 74 69 6f 6e } 		$a_03_2 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 73 63 72 69 70 74 2e 73 68 65 6c 6c 22 29 [0-20] 2e 65 78 65 63 20 22 63 3a 5c 77 69 6e 64 6f 77 73 5c 65 78 70 6c 6f 72 65 72 20 22 20 26 20 [0-20] 45 6e 64 20 46 75 6e 63 74 69 6f 6e } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1) >=3
 
}

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

e2838083-4020-4df0-9ad5-fcfe4f95655e

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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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