Versions (3)
Version DetailsCurrent
Rev: 1 • Mar 25, 2014, 12:00 PMET SCAN NMAP SIP Version Detect OPTIONS Scan
alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET SCAN NMAP SIP Version Detect OPTIONS Scan"; flow:established,to_server; content:"OPTIONS sip|3A|nm SIP/"; depth:19; classtype:attempted-recon; sid:2018317; rev:1; metadata:created_at 2014_03_25, confidence Low, signature_severity Informational, updated_at 2019_07_26;)
Mar 25, 2014, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-scan.rules