alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Possible iOS Pegasus Safari Exploit (CVE-2016-4657)"; flow:established,from_server; file_data; content:"+="; pcre:"/^\s*?\x27try\s*?{}\s*?catch\x28e\x29\s*?{}\x3b/Rsi"; content:"Object"; pcre:"/^(?:\.|\[\s*?[\x22\x27])defineProperties\s*?\x28/Rsi"; content:"defineProperties"; fast_pattern; reference:cve,2016-4657; reference:url,blog.lookout.com/blog/2016/11/02/trident-pegasus-technical-details/; classtype:attempted-admin; sid:2023484; rev:3; metadata:affected_product iOS, affected_product Safari, attack_target Mobile_Client, created_at 2016_11_07, cve CVE_2016_4657, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag CISA_KEV, updated_at 2019_10_08;)