WITHSECURELABS_Phantomrelay_Fingerprint

rule WITHSECURELABS_Phantomrelay_Fingerprint
{
	meta:
		description = "Detects PhantomRelay's fingerprinting script"
		author = "WithSecure"
		id = "b7191fdf-f270-5949-bb54-a5dea2a6e2a0"
		date = "2026-05-28"
		modified = "2026-05-28"
		reference = "https://github.com/WithSecureLabs/iocs"
		source_url = "https://github.com/WithSecureLabs/iocs/blob/1a8384468dd292c6d2c5114c32e42dc0da1f5ae1/GREYVIBE/greyvibe.yara#L75-L89"
		license_url = "https://github.com/WithSecureLabs/iocs/blob/1a8384468dd292c6d2c5114c32e42dc0da1f5ae1/LICENSE"
		logic_hash = "88e2cf9106731fe9e7e76ed00a09e81828029e68e0e40ca58c8efad93e9e16b5"
		score = 75
		quality = 75
		tags = ""
		target_entity = "file"

	strings:
		$a1 = "$env:COMPUTERNAME"
		$a2 = "$env:USERNAME"
		$a3 = "$PID"
		$a4 = "Win32_Computer"
		$user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/534.36 (KHTML, like Gecko) Chrome/95.4.4476.124 Safari/537.36"

	condition:
		all of them
}