SEKOIA_Apt_Aridviper_Rustsysjoker

rule SEKOIA_Apt_Aridviper_Rustsysjoker : FILE
{
	meta:
		description = "Detects Rust Sysjoker variant via PDB path or key and Rust string"
		author = "Sekoia.io"
		id = "14ff3f76-0371-4b45-9864-bf69c74e60aa"
		date = "2023-11-27"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_aridviper_rustsysjoker.yar#L1-L18"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "cb3c5d37095c27aa169a6aa61fa12972ff71877c615eaa254c3906ef10c662a9"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$Rust = "called `Option::unwrap()` on a `None` value"
		$Key = "QQL8VJUJMABL8H5YNRC9QNEOHA"
		$PDB = "C:\\Code\\Rust\\RustDown-Belal\\target\\release\\deps\\RustDown.pdb"

	condition:
		uint16be( 0 ) == 0x4d5a and filesize < 1MB and ( $PDB or ( $Rust and $Key ) )
}