# (C) Copyright 2001,2002, Martin Roesch, Brian Caswell, et al.
#    All rights reserved.
# $Id: other-ids.rules,v 1.2 2002/08/18 20:28:43 cazz Exp $
# ---------------
# OTHER-IDS RULES
# ---------------
# These signatures look for uses of other IDSs.
#
# These signatures serve two purposes.
#  1) If you are "IDS GUY" for a company, and someone else sets up an IDS
#     without letting you know, thats bad.
#  2) If you are "pen-tester", this is a good way to find out what IDSs
#     your target is using after you have gained access to their network.
#


alert tcp $HOME_NET 902 -> $EXTERNAL_NET any (msg:"OTHER-IDS ISS RealSecure 6 event collector connection attempt"; flow:from_server,established; content:"6ISS ECNRA Built-In Provider, Strong Encryption"; nocase; offset:30; depth:70; classtype:successful-recon-limited; sid:1760; rev:2;)
alert tcp $HOME_NET 2998 -> $EXTERNAL_NET any (msg:"OTHER-IDS ISS RealSecure 6 daemon connection attempt"; flow:from_server,established; content:"6ISS ECNRA Built-In Provider, Strong Encryption"; nocase; offset:30; depth:70; classtype:successful-recon-limited; sid:1761; rev:2;)

# To limit false positives, limit to the default port of 975
alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"OTHER-IDS SecureNetPro traffic"; content: "|00 67 00 01 00 03|"; offset:0; depth:6; flow:established; classtype:bad-unknown; sid:1629; rev:3;)