TrojanDownloader_Win32_Farfli_PN_bit

YARA detection rule by roadwy

TrojanDownloader:Win32/Farfli.PN!bit,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00

rule TrojanDownloader_Win32_Farfli_PN_bit{
	meta:
		description = "TrojanDownloader:Win32/Farfli.PN!bit,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_03_0 = {8a 1c 11 80 c3 ?? 88 1c 11 8b 54 24 04 8a 1c 11 80 f3 ?? 88 1c 11 41 3b c8 7c e1 } 		$a_01_1 = {54 43 50 43 6f 6e 6e 65 63 74 46 6c 6f 6f 64 54 68 72 65 61 64 2e 74 61 72 67 65 74 } 		$a_03_2 = {68 74 74 70 3a 2f 2f 31 31 39 2e 32 34 39 2e 35 34 2e 31 31 33 2f [0-10] 2e 65 78 65 } 		$a_01_3 = {48 41 52 44 57 41 52 45 5c 44 45 53 43 52 49 50 54 49 4f 4e 5c 53 79 73 74 65 6d 5c 43 65 6e 74 72 61 6c 50 72 6f 63 65 73 73 6f 72 5c 30 } 	condition:
		((#a_03_0  & 1)*1+(#a_01_1  & 1)*1+(#a_03_2  & 1)*1+(#a_01_3  & 1)*1) >=4
 
}

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

6a14dd25-b38e-4490-9ffc-8f039fad7ee7

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