Rule History

alert http $HTTP_SERVERS any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS c0896 Hacked Site Response Octal (Outbound)"; flow:established,to_client; file_data; content:"0c0896"; fast_pattern; content:"="; distance:0; pcre:"/^[^\x22\x27\x3b]*?[\x22\x27](?P<space>[0-7]{1,3})(?P<sep>[^0-9a-f])(?P<f>[0-7]{1,3})(?P=sep)[0-7]{1,3}(?P=sep)(?P<n>(?!(?P=f))[0-7]{1,3})(?P=sep)([0-7]{1,3}(?P=sep)){4}(?P=n)(?P=sep)(?P=space)(?P=sep)(?P<z>(?!((?P=f)|(?P=n)))[0-7]{1,3})(?P=sep)(?P=z)(?P=sep)(?P=z)(?P=sep)(?P=f)(?P=sep)(?P=f)(?P=sep)(?P=f)/R"; classtype:trojan-activity; sid:2017192; rev:3; metadata:created_at 2013_07_25, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)