Backdoor_Win32_Farfli_QY_bit

YARA detection rule by roadwy

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

rule Backdoor_Win32_Farfli_QY_bit{
	meta:
		description = "Backdoor:Win32/Farfli.QY!bit,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_00_0 = {4b 53 61 66 65 54 72 61 79 2e 65 78 65 } 		$a_00_1 = {33 36 30 74 72 61 79 2e 65 78 65 } 		$a_00_2 = {2f 63 20 64 65 6c 20 2f 71 20 25 73 } 		$a_00_3 = {00 4c 6f 6e 67 5a 75 6f 6d 73 00 } 		$a_01_4 = {49 6e 6a 65 63 74 44 4c 4c 2e 64 6c 6c } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_01_4  & 1)*1) >=5
 
}

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

b65480da-30c2-498f-b7ed-5e31673d39ec

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion