Backdoor_Win32_Farfli_QU_bit

YARA detection rule by roadwy

Backdoor:Win32/Farfli.QU!bit,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00

rule Backdoor_Win32_Farfli_QU_bit{
	meta:
		description = "Backdoor:Win32/Farfli.QU!bit,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {c6 45 f4 5c c6 45 f5 6f c6 45 f6 75 c6 45 f7 72 c6 45 f8 6c } 		$a_01_1 = {b8 12 00 cd 10 bd 18 7c b9 18 00 b8 01 13 bb 0c 00 ba 1d 0e cd 10 e2 fe 47 61 6d 65 20 4f 76 65 72 } 		$a_03_2 = {4b 50 8d 45 ?? 50 c6 45 ?? 45 c6 45 ?? 52 c6 45 ?? 4e c6 45 ?? 45 c6 45 ?? 4c c6 45 ?? 33 c6 45 ?? 32 } 		$a_03_3 = {8b 45 08 0f b7 cf 03 c6 8a 4c 4d ?? 30 08 47 46 3b 75 } 		$a_01_4 = {53 59 53 54 45 4d 5c 43 75 72 72 65 6e 74 43 6f 6e 74 72 6f 6c 53 65 74 5c 53 65 72 76 69 63 65 73 5c 25 73 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_03_2  & 1)*1+(#a_03_3  & 1)*1+(#a_01_4  & 1)*1) >=5
 
}

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

055fd0df-a5e1-446c-9e5d-304c5fd3312d

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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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