SEKOIA_Guloader_Lnk_File

rule SEKOIA_Guloader_Lnk_File : FILE
{
	meta:
		description = "LNK file delivering Guloader"
		author = "Sekoia.io"
		id = "ecc07753-0910-445b-bf84-911b17195894"
		date = "2024-02-07"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/guloader_lnk_file.yar#L1-L18"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "d69038a8b26c7fc7ba7b0968c7c91b589b25512dcf7e3ad5ee56453a4654a1ab"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$s1 = "$PSHOME" wide
		$s2 = "&(${" wide
		$s3 = "}::ToString(" wide
		$s4 = "$([TYPE]${" wide

	condition:
		uint32be( 0 ) == 0x4c000000 and all of them
}