alert tcp $EXTERNAL_NET any -> $HOME_NET $IMAP_PORT (msg: "[IMAPD] Brute force attack [5/1]"; pcre: "/Login failed user=|AUTHENTICATE LOGIN failure/i"; classtype: unsuccessful-user; parse_src_ip: 1; flowbits: set,brute_force,21600; after: track by_src, count 5, seconds 300; threshold: type limit, track by_src, count 1, seconds 300; program: imapd; reference: url,wiki.quadrantsec.com/bin/view/Main/5002947; sid:5002947; rev:1;)

-- Main.Sagan-Wiki-Add - 2016-8-30

New revisions of 5002947 will be below...

Topic revision: r1 - 2016-08-30 - Sagan-Wiki-Add
 
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