|
1
|
# Telnet - Insecure remote login - RFC 854
|
|
2
|
# Pattern attributes: good veryfast fast
|
|
3
|
# Protocol groups: remote_access obsolete ietf_internet_standard
|
|
4
|
# Wiki: http://www.protocolinfo.org/wiki/Telnet
|
|
5
|
# Copyright (C) 2008 Matthew Strait, Ethan Sommer; See ../LICENSE
|
|
6
|
#
|
|
7
|
# Usually runs on port 23
|
|
8
|
#
|
|
9
|
# This pattern is lightly tested.
|
|
10
|
|
|
11
|
telnet
|
|
12
|
# Matches at least three IAC (Do|Will|Don't|Won't) commands in a row.
|
|
13
|
# My telnet client sends 9 when I connect, so this should be fine.
|
|
14
|
# This pattern could fail on a unchatty connection or it could be
|
|
15
|
# matched by something non-telnet spewing a lot of stuff in the fb-ff range.
|
|
16
|
^\xff[\xfb-\xfe].\xff[\xfb-\xfe].\xff[\xfb-\xfe]
|