#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY HTTP CONNECT Tunnel Attempt Inbound"; flow: to_server,established; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:80"; within: 4; distance: -11; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:443"; within: 5; distance: -12; classtype: misc-activity; sid: 2000560; rev:8;)

Added 2008-07-01 11:33:46 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY HTTP CONNECT Tunnel Attempt Inbound"; flow: to_server,established; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:80"; within: 4; distance: -11; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:443"; within: 5; distance: -12; classtype: misc-activity; sid: 2000560; rev:8;)

Added 2008-07-01 11:33:46 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HTTP CONNECT Tunnel Attempt Inbound"; flow: to_server,established; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:80"; within: 4; distance: -11; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:443"; within: 5; distance: -12; classtype: misc-activity; sid: 2000560; rev:8;)

Added 2008-06-24 23:26:43 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HTTP CONNECT Tunnel Attempt Inbound"; flow: to_server,established; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:80"; within: 4; distance: -11; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:443"; within: 5; distance: -12; classtype: misc-activity; sid: 2000560; rev:8;)

Added 2008-06-24 23:26:43 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HTTP CONNECT Tunnel Attempt Inbound"; flow: to_server,established; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:80"; within: 4; distance: -11; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:443"; within: 5; distance: -12; classtype: misc-activity; sid: 2000560; rev:8;)

Added 2008-06-24 23:24:11 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HTTP CONNECT Tunnel Attempt Inbound"; flow: to_server,established; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:80"; within: 4; distance: -11; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:443"; within: 5; distance: -12; classtype: misc-activity; sid: 2000560; rev:8;)

Added 2008-06-24 23:24:11 UTC

#alert tcp any any -> any any (msg:"ET HTTP CONNECT Tunnel Attempt"; flow: to_server,established; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:80"; within: 4; distance: -11; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:443"; within: 5; distance: -12; classtype: misc-activity; sid: 2000560; rev:7;)

Added 2008-01-31 18:48:09 UTC

#alert tcp any any -> any any (msg:"ET HTTP CONNECT Tunnel Attempt"; flow: to_server,established; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:80"; within: 4; distance: -11; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:443"; within: 5; distance: -12; classtype: misc-activity; sid: 2000560; rev:7;)

Added 2008-01-31 18:48:09 UTC

#alert tcp any any -> any any (msg: "BLEEDING-EDGE HTTP CONNECT Tunnel Attempt"; flow: to_server,established; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:80"; within: 4; distance: -11; content:"CONNECT "; nocase; content:"|0d 0a|"; within: 1024; distance: 0; content:"HTTP/1."; nocase; within: 8; distance: -10; content:!"\:443"; within: 5; distance: -12; classtype: misc-activity; sid: 2000560; rev:6; )