Trojan_BAT_Formbook_EM_MTB

YARA detection rule by roadwy

Trojan:BAT/Formbook.EM!MTB,SIGNATURE_TYPE_PEHSTR_EXT,10 00 10 00 07 00 00

rule Trojan_BAT_Formbook_EM_MTB{
	meta:
		description = "Trojan:BAT/Formbook.EM!MTB,SIGNATURE_TYPE_PEHSTR_EXT,10 00 10 00 07 00 00 "
		
	strings :
		$a_81_0 = {24 61 32 37 63 63 66 30 37 2d 32 62 64 35 2d 34 30 64 63 2d 39 36 37 39 2d 35 30 35 64 63 61 39 39 66 61 66 34 } 		$a_81_1 = {47 45 53 54 54 49 4f 4e 5f 64 65 73 5f 48 4f 54 45 4c } 		$a_81_2 = {47 65 74 44 6f 6d 61 69 6e } 		$a_81_3 = {57 65 62 52 65 71 75 65 73 74 } 		$a_81_4 = {41 63 74 69 76 61 74 6f 72 } 		$a_81_5 = {47 65 74 52 65 73 6f 75 72 63 65 53 74 72 69 6e 67 } 		$a_81_6 = {43 72 65 61 74 65 49 6e 73 74 61 6e 63 65 } 	condition:
		((#a_81_0  & 1)*10+(#a_81_1  & 1)*1+(#a_81_2  & 1)*1+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1+(#a_81_5  & 1)*1+(#a_81_6  & 1)*1) >=16
 
}

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

6cc5b6bb-6d26-4a9e-b794-8d22af3ab8e3

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion