drop tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[VSFTPD] Login failed - Brute force [5/5]"; content: "FAIL LOGIN"; classtype: unsuccessful-user; program: vsftpd; after: track by_src, count 5, seconds 300; threshold: type limit, track by_src, count 5, seconds 300; fwsam: src, 1 day; reference: url,wiki.quadrantsec.com/bin/view/Main/5000196; sid: 5000196; rev:4;)
-- Main.Sagan-Wiki-Add - 2015-10-21
New revisions of 5000196 will be below...
drop tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[VSFTPD] Login failed - Brute force [5/5]"; content: "FAIL LOGIN"; classtype: unsuccessful-user; program: vsftpd; after: track by_src, count 5, seconds 300; threshold: type limit, track by_src, count 5, seconds 300; fwsam: src, 1 day; flowbits: set,brute_force,21600; reference: url,wiki.quadrantsec.com/bin/view/Main/5000196; sid: 5000196; rev:5;)
-- Main.Sagan-Wiki-Add - 2016-8-30