alert tcp $EXTERNAL_NET any -> $HOME_NET $POP3_PORT (msg:"[VPOPMAIL] Authentication failure for POP3 service"; content: "password fail"; classtype: unsuccessful-user; program: vpopmail; reference: url,wiki.quadrantsec.com/bin/view/Main/5000211; sid: 5000211; rev:3;)
-- Main.Sagan-Wiki-Add - 2015-10-21
New revisions of 5000211 will be below...
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[VPOPMAIL] Authentication failure for POP3 service"; content: "password fail"; default_proto: tcp; default_dst_port: $POP3_PORT; classtype: unsuccessful-user; program: vpopmail; reference: url,wiki.quadrantsec.com/bin/view/Main/5000211; sid: 5000211; rev:4;)
-- Main.Sagan-Wiki-Add - 2021-4-12