Trojan_BAT_FormBook_NS_MTB

YARA detection rule by roadwy

Trojan:BAT/FormBook.NS!MTB,SIGNATURE_TYPE_PEHSTR_EXT,09 00 09 00 05 00 00

rule Trojan_BAT_FormBook_NS_MTB{
	meta:
		description = "Trojan:BAT/FormBook.NS!MTB,SIGNATURE_TYPE_PEHSTR_EXT,09 00 09 00 05 00 00 "
		
	strings :
		$a_81_0 = {37 62 38 66 63 38 61 63 2d 37 39 61 37 2d 34 30 64 62 2d 61 35 32 36 2d 61 36 38 63 65 61 63 39 31 61 64 61 } 		$a_81_1 = {55 72 6c 54 6f 6b 65 6e 44 65 63 6f 64 65 } 		$a_81_2 = {67 65 74 5f 55 73 65 72 6e 61 6d 65 } 		$a_81_3 = {67 65 74 5f 50 61 73 73 77 6f 72 64 } 		$a_81_4 = {44 65 62 75 67 67 65 72 42 72 6f 77 73 61 62 6c 65 53 74 61 74 65 } 	condition:
		((#a_81_0  & 1)*5+(#a_81_1  & 1)*1+(#a_81_2  & 1)*1+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1) >=9
 
}

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

5ac9ae9d-c7b8-42aa-a0e5-14207da76741

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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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