/etc/prelude-lml/ruleset/cisco-vpn.rules is in prelude-lml 1.0.0-5.3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (C) 2003 G Ramon Gomez <gene at gomezbrothers dot com>
# Tyco Fire and Security GTS (www.tycofireandsecurity.com)
# All Rights Reserved
#
# This file is part of the Prelude-LML program.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to
# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
#
#####
#####
#
# The rules included here were developed using a Cisco VPN 3000 Concentrator.
# Please report any inconsistencies on other models to G Ramon Gomez at the
# address provided above
#
#####
#LOG:Oct 28 19:00:35 vpn 1453 10/28/2003 19:00:34.930 SEV=4 AUTH/28 RPT=22 12.34.56.78 User [gene.gomez], Group [Staff] disconnected: Duration: 0:10:12 Bytes xmt: 2745816 Bytes rcv: 172696 Reason: User Requested
regex=([\d\.]+) User \[(\S+)\], Group \[(\S+)\] disconnected: Duration: (\S+) Bytes xmt: (\d+) Bytes rcv: (\d+) Reason: (.+); \
classification.text=VPN user disconnected; \
classification.reference(0).origin=vendor-specific; \
classification.reference(0).meaning=vpn_id; \
classification.reference(0).name=AUTH/28; \
classification.reference(1).origin=vendor-specific; \
classification.reference(1).meaning=vpn_severity; \
classification.reference(1).name=4; \
id=300; \
revision=2; \
analyzer(0).name=VPN Concentrator; \
analyzer(0).manufacturer=Cisco; \
analyzer(0).class=VPN; \
assessment.impact.severity=low; \
assessment.impact.description=VPN user $2 disconnected; \
source(0).node.address(0).category=ipv4-addr; \
source(0).node.address(0).address=$1; \
source(0).user.category=application; \
source(0).user.user_id(0).type=current-user; \
source(0).user.user_id(0).name=$2; \
source(0).user.user_id(1).type=current-group; \
source(0).user.user_id(1).name=$3; \
additional_data(0).type=string; \
additional_data(0).meaning=Connection duration; \
additional_data(0).data=$4; \
additional_data(1).type=integer; \
additional_data(1).meaning=Bytes transmitted; \
additional_data(1).data=$5; \
additional_data(2).type=integer; \
additional_data(2).meaning=Bytes received; \
additional_data(2).data=$6; \
additional_data(3).type=string; \
additional_data(3).meaning=Disconnect reason; \
additional_data(3).data=$7; \
last
#LOG:Oct 29 19:18:20 vpn 1793 10/29/2003 19:18:20.190 SEV=3 AUTH/5 RPT=6 12.34.56.78 Authentication rejected: Reason = Invalid password handle = 66, server = Internal, user = gene.gomez, domain = <not specified>
regex=([\d\.]+) Authentication rejected: Reason = (.+) handle = \d+, server = (\S+), user = (\S+), domain = (.+); \
classification.text=VPN user authentication; \
classification.reference(0).origin=vendor-specific; \
classification.reference(0).meaning=vpn_id; \
classification.reference(0).name=AUTH/5; \
classification.reference(1).origin=vendor-specific; \
classification.reference(1).meaning=vpn_severity; \
classification.reference(1).name=3; \
id=301; \
revision=4; \
analyzer(0).name=VPN Concentrator; \
analyzer(0).manufacturer=Cisco; \
analyzer(0).class=VPN; \
assessment.impact.severity=medium; \
assessment.impact.type=user; \
assessment.impact.completion=failed; \
assessment.impact.description=VPN user $4 failed authentication because of $2; \
source(0).node.address(0).category=ipv4-addr; \
source(0).node.address(0).address=$1; \
target(0).user.category=application; \
target(0).user.user_id(0).type=target-user; \
target(0).user.user_id(0).name=$4; \
additional_data(0).type=string; \
additional_data(0).meaning=Failure reason; \
additional_data(0).data=$2; \
additional_data(1).type=string; \
additional_data(1).meaning=Authentication server; \
additional_data(1).data=$3; \
additional_data(2).type=string; \
additional_data(2).meaning=Authentication domain; \
additional_data(2).data=$5; \
last
#LOG:Oct 28 18:50:21 vpn 1414 10/28/2003 18:50:21.930 SEV=4 IKE/52 RPT=22 12.34.56.78 Group [Staff] User [gene.gomez] User (gene.gomez) authenticated.
regex=([\d\.]+) Group \[(\S+)\] User \[(\S+)\] User \(\S+\) authenticated; \
classification.text=VPN user authentication; \
classification.reference(0).origin=vendor-specific; \
classification.reference(0).meaning=vpn_id; \
classification.reference(0).name=IKE/52; \
classification.reference(1).origin=vendor-specific; \
classification.reference(1).meaning=vpn_severity; \
classification.reference(1).name=4; \
id=302; \
revision=4; \
analyzer(0).name=VPN Concentrator; \
analyzer(0).manufacturer=Cisco; \
analyzer(0).class=VPN; \
assessment.impact.severity=low; \
assessment.impact.type=user; \
assessment.impact.completion=succeeded; \
assessment.impact.description=VPN user $3 authenticated; \
source(0).node.address(0).category=ipv4-addr; \
source(0).node.address(0).address=$1; \
target(0).user.category=application; \
target(0).user.user_id(0).type=target-user; \
target(0).user.user_id(0).name=$3; \
target(0).user.user_id(1).type=current-group; \
target(0).user.user_id(1).name=$2; \
last
#LOG:Oct 29 19:53:18 vpn 1843 10/29/2003 19:53:18.680 SEV=5 AUTH/31 RPT=2 User [ admin ] Protocol [ HTTP ] attempted ADMIN logon.. Status: <REFUSED> authentication failure !
regex=User \[ (\S+) \] Protocol \[ (\S+) \] attempted ADMIN logon.. Status: <REFUSED>; \
classification.text=VPN administration authentication; \
classification.reference(0).origin=vendor-specific; \
classification.reference(0).meaning=vpn_id; \
classification.reference(0).name=AUTH/31; \
classification.reference(1).origin=vendor-specific; \
classification.reference(1).meaning=vpn_severity; \
classification.reference(1).name=5; \
id=303; \
revision=3; \
analyzer(0).name=VPN Concentrator; \
analyzer(0).manufacturer=Cisco; \
analyzer(0).class=VPN; \
assessment.impact.severity=medium; \
assessment.impact.type=admin; \
assessment.impact.completion=failed; \
assessment.impact.description=VPN administration authentication failure: $1 using $2; \
target(0).user.category=os-device; \
target(0).user.user_id(0).type=target-user; \
target(0).user.user_id(0).name=$1; \
target(0).service.name=$2; \
last
#LOG:Oct 28 12:33:48 vpn 1359 10/28/2003 12:33:48.610 SEV=5 AUTH/36 RPT=1 12.34.56.78 User [ admin ] Protocol [ HTTP ] attempted ADMIN logon.. Status: <ACCESS GRANTED> !
regex=([\d\.]+) User \[ (\S+) \] Protocol \[ (\S+) \] attempted ADMIN logon.. Status: <ACCESS GRANTED>; \
classification.text=VPN administration authentication; \
classification.reference(0).origin=vendor-specific; \
classification.reference(0).meaning=vpn_id; \
classification.reference(0).name=AUTH/36; \
classification.reference(1).origin=vendor-specific; \
classification.reference(1).meaning=vpn_severity; \
classification.reference(1).name=5; \
id=304; \
revision=3; \
analyzer(0).name=VPN Concentrator; \
analyzer(0).manufacturer=Cisco; \
analyzer(0).class=VPN; \
assessment.impact.severity=low; \
assessment.impact.type=admin; \
assessment.impact.completion=succeeded; \
assessment.impact.description=VPN administration authentication success: $2 using $3; \
source(0).node.address(0).category=ipv4-addr; \
source(0).node.address(0).address=$1; \
target(0).user.category=os-device; \
target(0).user.user_id(0).type=current-user; \
target(0).user.user_id(0).name=$2; \
target(0).service.name=$3; \
last
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