alert tcp $EXTERNAL_NET any -> $HOME_NET 4080 (msg:"GPL DELETED iChat directory traversal attempt"; flow:to_server,established; content:"/../../"; reference:cve,1999-0897; classtype:web-application-activity; sid:2101604; rev:8; metadata:created_at 2010_09_23, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, updated_at 2024_11_26, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1083, mitre_technique_name File_And_Directory_Discovery; target:dest_ip;)