alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible Cthulu Stealer URI Struct M1"; flow:established,to_server; http.uri; bsize:15; content:"/autocheckbytes"; reference:url,www.cadosecurity.com/blog/from-the-depths-analyzing-the-cthulhu-stealer-malware-for-macos; classtype:trojan-activity; sid:2055496; rev:1; metadata:affected_product Mac_OSX, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_08_26, deployment Perimeter, performance_impact Low, confidence Low, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_08_26;)