TrojanDownloader_Win32_Farfli_PJ_bit

YARA detection rule by roadwy

TrojanDownloader:Win32/Farfli.PJ!bit,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 04 00 00

rule TrojanDownloader_Win32_Farfli_PJ_bit{
	meta:
		description = "TrojanDownloader:Win32/Farfli.PJ!bit,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 04 00 00 "
		
	strings :
		$a_03_0 = {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_1 = {2e 66 33 33 32 32 2e 6f 72 67 3a 36 35 35 30 30 2f 43 6f 6e 73 79 73 90 05 03 03 30 2d 39 2e 64 6c 6c } 		$a_03_2 = {32 30 32 2e 31 30 37 2e 32 30 34 2e 32 30 39 3a 36 35 35 30 30 2f [0-10] 2e 65 78 65 } 		$a_01_3 = {43 3a 5c 50 72 6f 67 72 61 6d 20 46 69 6c 65 73 5c 41 70 70 50 61 74 63 68 5c 6d 79 73 71 6c 64 2e 64 6c 6c } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1+(#a_01_3  & 1)*1) >=3
 
}

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

6e5a203d-8c83-4f2b-a3cd-f179c3c2da31

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