Trojan_BAT_FormBook_NLY_MTB

YARA detection rule by roadwy

Trojan:BAT/FormBook.NLY!MTB,SIGNATURE_TYPE_PEHSTR_EXT,0c 00 0c 00 0c 00 00

rule Trojan_BAT_FormBook_NLY_MTB{
	meta:
		description = "Trojan:BAT/FormBook.NLY!MTB,SIGNATURE_TYPE_PEHSTR_EXT,0c 00 0c 00 0c 00 00 "
		
	strings :
		$a_01_0 = {24 39 31 32 65 66 61 39 32 2d 36 31 30 62 2d 34 30 66 32 2d 61 32 38 32 2d 32 32 64 31 62 36 66 36 34 65 30 31 } 		$a_01_1 = {57 9d a2 29 09 0b 00 00 00 fa 01 33 00 16 00 00 01 } 		$a_01_2 = {42 4c 4c 2e 50 72 6f 70 65 72 74 69 65 73 2e 52 65 73 6f 75 72 63 65 73 } 		$a_81_3 = {70 30 2e 6a 4f } 		$a_81_4 = {4c 6f 67 53 77 69 74 63 68 } 		$a_81_5 = {58 43 43 56 56 } 		$a_81_6 = {50 61 6e 64 61 } 		$a_01_7 = {43 72 65 61 74 65 44 65 63 72 79 70 74 6f 72 } 		$a_01_8 = {54 72 61 6e 73 66 6f 72 6d 46 69 6e 61 6c 42 6c 6f 63 6b } 		$a_01_9 = {52 69 6a 6e 64 61 65 6c 4d 61 6e 61 67 65 64 } 		$a_01_10 = {47 65 74 44 6f 6d 61 69 6e } 		$a_01_11 = {53 48 41 32 35 36 43 72 79 70 74 6f 53 65 72 76 69 63 65 50 72 6f 76 69 64 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1+(#a_81_5  & 1)*1+(#a_81_6  & 1)*1+(#a_01_7  & 1)*1+(#a_01_8  & 1)*1+(#a_01_9  & 1)*1+(#a_01_10  & 1)*1+(#a_01_11  & 1)*1) >=12
 
}

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

5f2daac4-4b6d-4451-a1c9-b5f36a6e8af5

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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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