alert tcp $EXTERNAL_NET 5938 -> $HOME_NET any (msg:"ET REMOTE_ACCESS TeamViewer Keep-alive inbound"; flow:established,to_client; flowbits:isset,ET.teamviewerkeepaliveout; dsize:5; content:"|17 24 1B 00 00|"; threshold:type limit, count 1, seconds 120, track by_src; reference:url,www.teamviewer.com; reference:url,en.wikipedia.org/wiki/TeamViewer; classtype:misc-activity; sid:2008795; rev:6; metadata:created_at 2010_07_30, former_category POLICY, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_06_10;)