WITHSECURELABS_Fallspy

rule WITHSECURELABS_Fallspy
{
	meta:
		description = "Detects FallSpy Android malware"
		author = "WithSecure"
		id = "8d0823be-3a64-5e2d-995c-0b2fccf77a98"
		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#L121-L139"
		license_url = "https://github.com/WithSecureLabs/iocs/blob/1a8384468dd292c6d2c5114c32e42dc0da1f5ae1/LICENSE"
		logic_hash = "29575182e5399930764cdc33d1a62d020618ad630a01d4f503a38a241069fe4d"
		score = 75
		quality = 75
		tags = ""

	strings:
		$a = "DataCollectorWork" fullword
		$b = "UpdateChecker" fullword
		$c = "/check_update?version="
		$e = "&call_logs=" fullword
		$f = "&sim_numbers=" fullword
		$g = "&wifi_ssid=" fullword
		$h = "Public IP: " fullword
		$i = "uploaded_hashes" fullword
		$n = "Android ID: " fullword
		$o = "Call Logs: " fullword

	condition:
		4 of them
}