alert tcp $EXTERNAL_NET any -> $HOME_NET $SMTP_PORT (msg: "[SENDMAIL] Possible open proxy"; program: sm-mta|sendmail; content: "probable open proxy:"; parse_src_ip: 1; classtype: suspicious-traffic; flowbits: set, recon, 86400; reference: url, wiki.quadrantsec.com/bin/view/Main/5001013; sid: 5001013; rev: 6;)
-- Main.Sagan-Wiki-Add - 2015-10-21
New revisions of 5001013 will be below...