Trojan_BAT_FormBook_FF_MTB_2

YARA detection rule by roadwy

Trojan:BAT/FormBook.FF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,17 00 17 00 11 00 00

rule Trojan_BAT_FormBook_FF_MTB_2{
	meta:
		description = "Trojan:BAT/FormBook.FF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,17 00 17 00 11 00 00 "
		
	strings :
		$a_81_0 = {24 66 31 63 39 34 31 61 66 2d 63 66 37 32 2d 34 30 65 33 2d 39 35 65 37 2d 35 66 39 62 31 36 32 30 66 65 65 30 } 		$a_01_1 = {24 44 43 34 44 35 33 43 38 2d 38 38 33 32 2d 34 35 30 30 2d 39 35 39 39 2d 44 39 34 44 36 46 41 35 35 39 32 30 } 		$a_81_2 = {24 32 33 30 64 66 31 34 38 2d 38 33 61 30 2d 34 30 63 32 2d 38 34 36 61 2d 37 31 65 37 65 37 65 33 37 37 39 39 } 		$a_01_3 = {24 35 30 46 37 44 32 31 41 2d 30 35 38 30 2d 34 38 31 32 2d 39 42 36 42 2d 34 30 34 43 43 38 34 34 32 43 38 44 } 		$a_81_4 = {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_5 = {4d 61 6e 61 67 65 72 4d 61 72 6b 65 74 2e 4d 79 2e 52 65 73 6f 75 72 63 65 73 } 		$a_81_6 = {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_7 = {4d 61 72 73 68 61 6c 4f 76 65 72 72 69 64 65 2e 50 72 6f 70 65 72 74 69 65 73 2e 52 65 73 6f 75 72 63 65 73 2e 72 65 73 6f 75 72 63 65 73 } 		$a_81_8 = {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_9 = {4d 61 6e 61 67 65 72 47 61 6d 65 2e 52 65 73 6f 75 72 63 65 73 2e 72 65 73 6f 75 72 63 65 73 } 		$a_81_10 = {44 65 62 75 67 67 65 72 42 72 6f 77 73 61 62 6c 65 53 74 61 74 65 } 		$a_81_11 = {4c 6f 61 64 65 72 4f 70 74 69 6d 69 7a 61 74 69 6f 6e 2e 52 65 73 6f 75 72 63 65 73 2e 72 65 73 6f 75 72 63 65 73 } 		$a_81_12 = {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_13 = {43 72 65 61 74 65 49 6e 73 74 61 6e 63 65 } 		$a_81_14 = {44 65 62 75 67 67 61 62 6c 65 41 74 74 72 69 62 75 74 65 } 		$a_81_15 = {41 63 74 69 76 61 74 6f 72 } 		$a_81_16 = {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_01_3  & 1)*20+(#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+(#a_81_15  & 1)*1+(#a_81_16  & 1)*1) >=23
 
}

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

c59c180a-221d-4932-9d24-5d0ecd5e73c1

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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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