TrojanDownloader_PowerShell_Bynoco_MTB_5

YARA detection rule by roadwy

TrojanDownloader:PowerShell/Bynoco!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDownloader_PowerShell_Bynoco_MTB_5{
	meta:
		description = "TrojanDownloader:PowerShell/Bynoco!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {70 6f 77 65 72 73 68 65 6c 6c 2e 65 78 65 20 2d 57 69 6e 64 6f 77 53 74 79 6c 65 20 48 69 64 64 65 6e 20 2d 45 78 65 63 75 74 69 6f 6e 50 6f 6c 69 63 79 } 		$a_03_1 = {68 74 74 70 3a 2f 2f 77 65 65 73 68 6f 70 70 69 2e 63 6f 6d 2f 77 70 2d 69 6e 63 6c 75 64 65 73 2f 49 44 33 2f [0-04] 2f [0-08] 2e 6a 70 67 } 		$a_01_2 = {53 74 61 72 74 2d 50 72 6f 63 65 73 73 20 2d 46 69 6c 65 50 61 74 68 20 22 43 3a 5c 55 73 65 72 73 5c 50 75 62 6c 69 63 5c 61 64 6c 68 76 6d 63 2e 65 78 65 } 		$a_01_3 = {53 74 61 72 74 2d 50 72 6f 63 65 73 73 20 2d 46 69 6c 65 50 61 74 68 20 22 43 3a 5c 55 73 65 72 73 5c 50 75 62 6c 69 63 5c 44 6f 63 75 6d 65 6e 74 73 5c 6a 61 65 63 79 79 76 2e 65 78 65 } 		$a_01_4 = {53 74 61 72 74 2d 50 72 6f 63 65 73 73 20 2d 46 69 6c 65 50 61 74 68 20 22 43 3a 5c 55 73 65 72 73 5c 50 75 62 6c 69 63 5c 44 6f 63 75 6d 65 6e 74 73 5c 6c 76 6d 69 73 61 70 2e 65 78 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_03_1  & 1)*1+(#a_01_2  & 1)*3+(#a_01_3  & 1)*3+(#a_01_4  & 1)*3) >=5
 
}

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

acda7e0e-6f32-478b-a098-9f2b871f15d6

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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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