SEKOIA_Apt_Lazarus_Backdoored_Jslib

rule SEKOIA_Apt_Lazarus_Backdoored_Jslib : FILE
{
	meta:
		description = "Detects InvisibleFerret based on common ressource."
		author = "Sekoia.io"
		id = "73ffd449-93c8-494e-9c14-2e933b21a200"
		date = "2024-10-28"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_lazarus_backdoored_jslib.yar#L1-L17"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		hash = "52e92be527690f4e63608cbc699e2f70"
		logic_hash = "205ad321afcb22ae2bf6cf2a58ce970ea9b0edda7fab60ddeda5ea36ecfe3cb9"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$obf = "(function(_0x" ascii
		$exp = "module.exports =" ascii

	condition:
		$exp in ( filesize -500 .. filesize ) and #obf == 1
}