alert syslog $EXTERNAL_NET any -> $HOME_NET any (msg: "[COURIER-CORRELATED] User login after suspicious activity"; content: "LOGIN,"; parse_src_ip: 1;classtype: successful-user; program: imapd|imapd-ssl|courierlogger; flowbits: isset,by_src,recon|honeypot; reference: url,wiki.quadrantsec.com/bin/view/Main/5002400; sid:5002400; rev:1;)
-- Main.Sagan-Wiki-Add - 2015-10-21
New revisions of 5002400 will be below...
alert syslog $EXTERNAL_NET any -> $HOME_NET any (msg: "[COURIER-CORRELATED] User login after suspicious activity"; content: "LOGIN,"; parse_src_ip: 1;classtype: successful-user; program: imapd|imapd-ssl|courierlogger; flowbits: isset,by_src,recon|honeypot|exploit_attempt; reference: url,wiki.quadrantsec.com/bin/view/Main/5002400; sid:5002400; rev:2;)
-- Main.Sagan-Wiki-Add - 2016-11-7