alert syslog $EXTERNAL_NET any -> $HOME_NET any (msg:"[ZIMBRA] SYNC - Brute force invalid username or password [5/3]"; content: "Invalid username or password"; flowbits: set,brute_force,21600; classtype: unsuccessful-user; reference: url,wiki.quadrantsec.com/bin/view/Main/5003033; parse_src_ip: 1; program: sync; after: track by_src, count 5, seconds 900; threshold: type limit, track by_src, count 3, seconds 900; fwsam: src, 1 day; sid:5003033; rev:1;)

-- Main.Sagan-Wiki-Add - 2016-12-30

New revisions of 5003033 will be below...