alert tcp $EXTERNAL_NET any -> $HOME_NET 873 (msg:"GPL MISC rsync backup-dir directory traversal attempt"; flow:established,to_server; content:"--backup-dir"; pcre:"/--backup-dir\s+\x2e\x2e\x2f/"; reference:bugtraq,10247; reference:cve,2004-0426; reference:nessus,12230; classtype:string-detect; sid:2102561; rev:7; 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;)