TrojanDownloader_PowerShell_Bynoco_MTB

YARA detection rule by roadwy

TrojanDownloader:PowerShell/Bynoco!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00

rule TrojanDownloader_PowerShell_Bynoco_MTB{
	meta:
		description = "TrojanDownloader:PowerShell/Bynoco!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {77 65 72 73 68 65 6c 6c 20 22 20 26 20 22 28 4e 45 77 2d 6f 62 6a 45 22 20 26 20 6c 6c 6c 20 26 20 22 74 20 22 20 26 20 22 73 79 73 74 65 6d 2e 6e 65 74 2e 77 45 42 63 6c 49 65 6e 54 29 2e 44 6f 77 6e 4c 6f 41 64 66 49 6c 45 } 		$a_01_1 = {68 74 74 70 73 3a 2f 2f 63 2e 74 6f 70 34 74 6f 70 2e 69 6f 2f 70 5f 31 37 35 32 69 32 72 7a 7a 31 2e 6a 70 67 } 		$a_01_2 = {45 4e 76 3a 54 45 4d 50 5c 76 68 66 2e 76 62 73 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1) >=3
 
}

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

389a2244-c30c-49e1-b498-7f427267cdc2

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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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