Rule History

alert ssh $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED LibSSH2 Based SSH Connection - Often used as a BruteForce Tool"; flow:established,to_server; ssh.software; content:"libssh2_"; threshold: type limit, track by_src, count 1, seconds 30; classtype:misc-activity; sid:2018689; rev:4; metadata:created_at 2014_07_17, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_27;)