WITHSECURELABS_GREYVIBE_JSLOADER_2

rule WITHSECURELABS_GREYVIBE_JSLOADER_2
{
	meta:
		description = "Detects common strings found across one of GREYVIBE's loaders (observed in PhantomMail campaign)"
		author = "WithSecure"
		id = "9901d2df-6539-51c6-a24d-c06a7e898a6a"
		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#L61-L73"
		license_url = "https://github.com/WithSecureLabs/iocs/blob/1a8384468dd292c6d2c5114c32e42dc0da1f5ae1/LICENSE"
		logic_hash = "c6fc0969bb62de731e9770447df565e427b03c69851708a0a30a4da20f176236"
		score = 75
		quality = 75
		tags = ""

	strings:
		$a = "// String Reconstruction"
		$b = "Math.cos"
		$c = "Math.sin"
		$d = ".join(\"\")"

	condition:
		all of them
}