alert tcp $TELNET_SERVERS 23 -> $EXTERNAL_NET any (msg:"INFO TELNET login incorrect"; flow:from_server,established; content:"Login incorrect"; reference:arachnids,127; classtype:bad-unknown; sid:718; rev:9;)
alert tcp $TELNET_SERVERS 23 -> $EXTERNAL_NET any (msg:"INFO TELNET access"; flow:from_server,established; content:"|FF FD|"; rawbytes; content:"|FF FD|"; distance:0; rawbytes; content:"|FF FD|"; distance:0; rawbytes; reference:arachnids,08; reference:cve,1999-0619; reference:nessus,10280; classtype:not-suspicious; sid:716; rev:13;)
# (C) Copyright 2001-2004, Martin Roesch, Brian Caswell, et al.
#    All rights reserved.
# $Id$
#-----------
# INFO RULES
#-----------

alert tcp $EXTERNAL_NET 80 -> $HOME_NET any (msg:"INFO Connection Closed MSG from Port 80"; flow:from_server,established; content:"Connection closed by foreign host"; nocase; classtype:unknown; sid:488; rev:4;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 21 (msg:"INFO FTP no password"; flow:from_client,established; content:"PASS"; nocase; pcre:"/^PASS\s*\n/smi"; reference:arachnids,322; classtype:unknown; sid:489; rev:7;)
alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"INFO battle-mail traffic"; flow:to_server,established; content:"BattleMail"; classtype:policy-violation; sid:490; rev:7;)
alert tcp $HOME_NET 21 -> $EXTERNAL_NET any (msg:"INFO FTP Bad login"; flow:from_server,established; content:"530 "; pcre:"/^530\s+(Login|User)/smi"; classtype:bad-unknown; sid:491; rev:8;)
alert tcp $TELNET_SERVERS 23 -> $EXTERNAL_NET any (msg:"INFO TELNET login failed"; flow:from_server,established; content:"Login failed"; nocase; classtype:bad-unknown; sid:492; rev:9;)
alert tcp $HOME_NET 23 -> $EXTERNAL_NET any (msg:"INFO TELNET Bad Login"; flow:from_server,established; content:"Login incorrect"; nocase; classtype:bad-unknown; sid:1251; rev:6;)
alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"INFO psyBNC access"; flow:from_server,established; content:"Welcome!psyBNC@lam3rz.de"; classtype:bad-unknown; sid:493; rev:5;)
alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"INFO web bug 0x0 gif attempt"; flow:from_server,established; content:"Content-type|3A| image/gif"; nocase; content:"GIF"; nocase; distance:0; content:"|01 00 01 00|"; distance:3; within:4; content:"|2C|"; distance:0; content:"|01 00 01 00|"; distance:4; within:4; classtype:misc-activity; sid:2925; rev:2;)
