Trojan_BAT_FormBook_FD_MTB

YARA detection rule by roadwy

Trojan:BAT/FormBook.FD!MTB,SIGNATURE_TYPE_PEHSTR_EXT,17 00 17 00 0f 00 00

rule Trojan_BAT_FormBook_FD_MTB{
	meta:
		description = "Trojan:BAT/FormBook.FD!MTB,SIGNATURE_TYPE_PEHSTR_EXT,17 00 17 00 0f 00 00 "
		
	strings :
		$a_81_0 = {24 66 61 64 37 39 62 65 63 2d 61 65 30 37 2d 34 39 38 39 2d 62 62 62 31 2d 62 66 35 37 30 37 65 35 64 37 39 39 } 		$a_01_1 = {24 42 46 39 36 36 39 33 35 2d 46 33 36 32 2d 34 42 46 46 2d 41 46 39 36 2d 42 38 33 42 35 44 35 42 38 38 43 41 } 		$a_81_2 = {24 37 63 66 37 65 30 37 61 2d 39 31 38 38 2d 34 30 62 34 2d 38 61 30 30 2d 61 37 32 63 36 64 61 61 33 30 65 35 } 		$a_81_3 = {44 65 62 75 67 67 65 72 4e 6f 6e 55 73 65 72 43 6f 64 65 41 74 74 72 69 62 75 74 65 } 		$a_81_4 = {4f 70 65 6e 46 54 50 2e 50 72 6f 70 65 72 74 69 65 73 2e 52 65 73 6f 75 72 63 65 73 } 		$a_81_5 = {44 65 62 75 67 67 65 72 42 72 6f 77 73 61 62 6c 65 41 74 74 72 69 62 75 74 65 } 		$a_81_6 = {54 54 53 49 2e 42 41 52 43 4f 44 45 53 2e 52 65 73 6f 75 72 63 65 73 2e 72 65 73 6f 75 72 63 65 73 } 		$a_81_7 = {44 65 62 75 67 67 65 72 53 74 65 70 54 68 72 6f 75 67 68 41 74 74 72 69 62 75 74 65 } 		$a_81_8 = {43 6c 6f 75 64 61 72 79 53 74 6f 72 61 67 65 2e 46 6f 72 6d 31 2e 72 65 73 6f 75 72 63 65 73 } 		$a_81_9 = {44 65 62 75 67 67 65 72 42 72 6f 77 73 61 62 6c 65 53 74 61 74 65 } 		$a_81_10 = {43 72 65 61 74 65 49 6e 73 74 61 6e 63 65 } 		$a_81_11 = {44 65 62 75 67 67 65 72 48 69 64 64 65 6e 41 74 74 72 69 62 75 74 65 } 		$a_81_12 = {41 63 74 69 76 61 74 6f 72 } 		$a_81_13 = {44 65 62 75 67 67 61 62 6c 65 41 74 74 72 69 62 75 74 65 } 		$a_81_14 = {44 65 62 75 67 67 69 6e 67 4d 6f 64 65 73 } 	condition:
		((#a_81_0  & 1)*20+(#a_01_1  & 1)*20+(#a_81_2  & 1)*20+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1+(#a_81_5  & 1)*1+(#a_81_6  & 1)*1+(#a_81_7  & 1)*1+(#a_81_8  & 1)*1+(#a_81_9  & 1)*1+(#a_81_10  & 1)*1+(#a_81_11  & 1)*1+(#a_81_12  & 1)*1+(#a_81_13  & 1)*1+(#a_81_14  & 1)*1) >=23
 
}

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

20f1593b-5326-4fff-be14-c94f7be796af

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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 ]]

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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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