Rule History

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY Self Signed SSL Certificate (SomeOrganizationalUnit)"; flow:established,to_client; tls.cert_subject; content:"OU=SomeOrganizationalUnit"; fast_pattern; classtype:policy-violation; sid:2013659; rev:6; metadata:attack_target Client_Endpoint, created_at 2011_09_15, deployment Perimeter, confidence High, signature_severity Informational, tag SSL_Malicious_Cert, updated_at 2022_03_23;)