Backdoor_Win32_Farfli_BN_MTB

YARA detection rule by roadwy

Backdoor:Win32/Farfli.BN!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 04 00 00

rule Backdoor_Win32_Farfli_BN_MTB{
	meta:
		description = "Backdoor:Win32/Farfli.BN!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 04 00 00 "
		
	strings :
		$a_01_0 = {8a 14 01 80 f2 91 80 ea 67 88 14 01 41 3b 4c 24 08 7c } 		$a_01_1 = {25 73 2e 65 78 65 } 		$a_01_2 = {66 75 63 6b 79 6f 75 } 		$a_01_3 = {5b 50 72 69 6e 74 20 53 63 72 65 65 6e 5d } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=5
 
}

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

0771fd0a-1303-4373-afb4-490b3151ac4b

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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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