Trojan_BAT_Formbook_ES_MTB

YARA detection rule by roadwy

Trojan:BAT/Formbook.ES!MTB,SIGNATURE_TYPE_PEHSTR_EXT,19 00 19 00 0b 00 00

rule Trojan_BAT_Formbook_ES_MTB{
	meta:
		description = "Trojan:BAT/Formbook.ES!MTB,SIGNATURE_TYPE_PEHSTR_EXT,19 00 19 00 0b 00 00 "
		
	strings :
		$a_81_0 = {24 32 35 33 66 62 35 39 62 2d 37 34 35 65 2d 34 61 32 62 2d 38 62 30 37 2d 39 32 36 33 36 34 32 37 37 66 32 34 } 		$a_81_1 = {24 61 31 35 63 35 36 36 33 2d 64 63 35 62 2d 34 66 63 64 2d 61 33 34 37 2d 39 65 37 61 39 63 38 62 65 63 30 35 } 		$a_81_2 = {24 64 32 38 34 35 62 38 39 2d 38 33 30 30 2d 34 63 37 34 2d 38 64 63 31 2d 36 31 63 35 66 33 65 32 38 61 33 65 } 		$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 = {4c 69 76 69 6e 67 5f 53 74 6f 72 79 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 = {47 61 6c 6c 65 72 79 55 70 6c 6f 61 64 65 72 2e 50 72 6f 70 65 72 74 69 65 73 2e 52 65 73 6f 75 72 63 65 73 } 		$a_81_7 = {44 65 62 75 67 67 65 72 42 72 6f 77 73 61 62 6c 65 53 74 61 74 65 } 		$a_81_8 = {46 6f 72 6d 73 46 75 6e 2e 4d 79 2e 52 65 73 6f 75 72 63 65 73 } 		$a_81_9 = {43 72 65 61 74 65 49 6e 73 74 61 6e 63 65 } 		$a_81_10 = {41 63 74 69 76 61 74 6f 72 } 	condition:
		((#a_81_0  & 1)*20+(#a_81_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) >=25
 
}

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

45c7d795-d1c6-466e-a066-a7b7f8ce0fe1

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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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