[Oisf-users] Rule Sets
Brant Wells
bwells at tfc.edu
Mon Jul 11 17:50:14 UTC 2011
Hey Guys,
I have tried both of the following URLs in my oinkmaster.conf for pulling in
the rules.
url = http://rules.emergingthreats.net/open/suricata/emerging.rules.tar.gz
url =
http://rules.emergingthreats.net/open/snort-2.8.6/emerging.rules.tar.gz
The log entry below is what I get when running suricata without the
--init-errors-fatal switch.
I have also attached my suricata.yaml as a text file.
NOTE: IP Address Ranges have been changed... I know 192.168.0.0/8 ain't
valid.
Any other ideas?
[LOG ENTRY]
[28480] 11/7/2011 -- 13:31:23 - (flow.c:787) <Info> (FlowInitConfig) --
initializing flow engine...
[28480] 11/7/2011 -- 13:31:23 - (flow.c:874) <Info> (FlowInitConfig) --
allocated 524288 bytes of memory for the flow hash... 65536 buckets of size
8
[28480] 11/7/2011 -- 13:31:23 - (flow.c:893) <Info> (FlowInitConfig) --
preallocated 10000 flows of size 164
[28480] 11/7/2011 -- 13:31:23 - (flow.c:895) <Info> (FlowInitConfig) -- flow
memory usage: 2164288 bytes, maximum: 33554432
[28480] 11/7/2011 -- 13:31:23 - (detect.c:503) <Error> (DetectLoadSigFile)
-- [ERRCODE: SC_ERR_INVALID_SIGNATURE(39)] - Error parsing signature "alert
http $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET DOS Cisco 4200
Wireless Lan Controller Long Authorisation Denial of Service Attempt";
flow:to_server,established; content:"GET "; depth:4; nocase;
uricontent:"/screens/frameset.html"; nocase; content:"Authorization|3A
20|Basic"; nocase; content:!"|0a|"; distance:2; within:118;
isdataat:120,relative;
pcre:"/\x2Fscreens\x2Fframeset\x2Ehtml.+Authorization\x3A Basic.{120}/msi";
classtype:attempted-dos; reference:url,www.securityfocus.com/bid/35805;
reference:url,www.cisco.com/warp/public/707/cisco-amb-20090727-wlc.shtml;
reference:cve,2009-1164; reference:url,doc.emergingthreats.net/2010674;
reference:url,
www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/DOS/DOS_Cisco_WLAN;
sid:2010674; rev:5;)" from file /etc/suricata/rules/emerging-dos.rules at
line 66
[END LOG ENTRY]
[BOTTOM OF LOG FILE]
[28709] 11/7/2011 -- 13:42:52 - (detect.c:635) <Info> (SigLoadSignatures) --
7 rule files processed. 35 rules succesfully loaded, 6266 rules failed
[28709] 11/7/2011 -- 13:42:52 - (detect.c:2396) <Info>
(SigAddressPrepareStage1) -- 35 signatures processed. 0 are IP-only rules,
28 are inspecting packet payload, 13 inspect application layer, 0 are
decoder event only
[28709] 11/7/2011 -- 13:42:52 - (detect.c:2399) <Info>
(SigAddressPrepareStage1) -- building signature grouping structure, stage 1:
adding signatures to signature source addresses... complete
[28709] 11/7/2011 -- 13:42:52 - (detect.c:3041) <Info>
(SigAddressPrepareStage2) -- building signature grouping structure, stage 2:
building source address list... complete
[28709] 11/7/2011 -- 13:42:52 - (detect.c:3598) <Info>
(SigAddressPrepareStage3) -- MPM memory 49690 (dynamic 49690, ctxs 0, avg
per ctx 0)
[28709] 11/7/2011 -- 13:42:52 - (detect.c:3600) <Info>
(SigAddressPrepareStage3) -- max sig id 35, array size 5
[28709] 11/7/2011 -- 13:42:52 - (detect.c:3611) <Info>
(SigAddressPrepareStage3) -- building signature grouping structure, stage 3:
building destination address lists... complete
[28709] 11/7/2011 -- 13:42:52 - (util-threshold-config.c:138) <Info>
(SCThresholdConfInitContext) -- Global thresholding options defined
[28709] 11/7/2011 -- 13:42:52 - (alert-fastlog.c:372) <Info>
(AlertFastLogInitCtx) -- Fast log output initialized, filename: fast.log
[28709] 11/7/2011 -- 13:42:52 - (alert-unified2-alert.c:889) <Info>
(Unified2AlertInitCtx) -- Unified2-alert initialized: filename
unified2.alert, limit 32 MB
[28709] 11/7/2011 -- 13:42:52 - (runmodes.c:336) <Warning>
(RunModeInitializeOutputs) -- [ERRCODE: SC_ERR_INVALID_ARGUMENT(13)] - No
output module named alert-prelude, ignoring
[28709] 11/7/2011 -- 13:42:52 - (log-droplog.c:182) <Info>
(LogDropLogInitCtx) -- Drop log output initialized, filename: drop.log
[28710] 11/7/2011 -- 13:42:52 - (source-pcap.c:389) <Info>
(ReceivePcapThreadInit) -- using interface eth0
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:355) <Info>
(StreamTcpInitConfig) -- stream "max_sessions": 262144
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:367) <Info>
(StreamTcpInitConfig) -- stream "prealloc_sessions": 32768
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:377) <Info>
(StreamTcpInitConfig) -- stream "memcap": 33554432
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:384) <Info>
(StreamTcpInitConfig) -- stream "midstream" session pickups: disabled
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:392) <Info>
(StreamTcpInitConfig) -- stream "async_oneside": disabled
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:408) <Info>
(StreamTcpInitConfig) -- stream "checksum_validation": enabled
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:419) <Info>
(StreamTcpInitConfig) -- stream."inline": disabled
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:428) <Info>
(StreamTcpInitConfig) -- stream.reassembly "memcap": 67108864
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:438) <Info>
(StreamTcpInitConfig) -- stream.reassembly "depth": 1048576
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:461) <Info>
(StreamTcpInitConfig) -- stream.reassembly "toserver_chunk_size": 2560
[28709] 11/7/2011 -- 13:42:52 - (stream-tcp.c:463) <Info>
(StreamTcpInitConfig) -- stream.reassembly "toclient_chunk_size": 2560
[28709] 11/7/2011 -- 13:42:52 - (tm-threads.c:1488) <Info>
(TmThreadWaitOnThreadInit) -- all 10 packet processing threads, 3 management
threads initialized, engine started.
[END BOTTOM OF LOG FILE]
On Mon, Jul 11, 2011 at 11:44 AM, Peter Manev <petermanev at gmail.com> wrote:
> Hi Brant,
> It would be helpful if you could some info regarding this frome your
> suricata.log file, if possible, if you have configured that in your yaml
> file.
>
> Thank you
> On 11 Jul 2011 17:24, "Brant Wells" <bwells at tfc.edu> wrote:
> > Hi All,
> >
> > Not sure if this should be posted on the dev list or the users lists, so
> I
> > thought I'd ask here first...
> >
> > I'd like to use the Emerging Threats open rule sets for Suricata.
> However,
> > when I updated the rules, now when I run Suricata, with
> --init-errors-fatal,
> > I get
> >
> > [ERRCODE: SC_ERR_INVALID_SIGNATURE(39)] - Error parsing signature "alert
> udp
> > $EXTERNAL_NET any -> $HOME_NET 514 (msg:"ET DOS Cisco 514 UDP flood DoS";
> > content:"|25 25 25 25 25 58 58 25 25 25 25 25|"; classtype:
> attempted-dos;
> > reference:url,www.cisco.com/warp/public/707/IOS-cbac-dynacl-pub.shtml;
> > reference:url,doc.emergingthreats.net/bin/view/Main/2000010;
> reference:url,
> >
> www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/DOS/DOS_Cisco_514_UDP_DoS;
> > sid:2000010; rev:11;)" from file /etc/suricata/rules/emerging-dos.rules
> at
> > line 54
> >
> > A ton of rule errors like that. How can I find / fix them? I am running
> > 1.1 beta 2 (rev 047b19d) from the git repo...
> >
> > See Yas!
> > ~Brant
>
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%YAML 1.1
---
# Suricata configuration file. In addition to the comments describing all
# options in this file, full documentation can be found at:
# https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Suricatayaml
# Number of packets allowed to be processed simultaneously. Default is a
# conservative 50. a higher number will make sure CPU's/CPU cores will be
# more easily kept busy, but will negatively impact caching.
#
# If you are using the CUDA pattern matcher (b2g_cuda below), different rules
# apply. In that case try something like 4000 or more. This is because the CUDA
# pattern matcher scans many packets in parallel.
#max-pending-packets: 50
# Runmode custom mode the engine should run in. Please check --list-runmodes
# to get the runmode custom modes that can be used here for a particular runmode.
#runmode: auto
# Preallocated size for packet. Default is 1514 which is the classical
# size for pcap on ethernet. You should adjust this value to the highest
# packet size (MTU + hardware header) on your system.
#default-packet-size: 1514
# Set the order of alerts bassed on actions
# The default order is pass, drop, reject, alert
action-order:
- pass
- drop
- reject
- alert
# The default logging directory. Any log or output file will be
# placed here if its not specified with a full path name. This can be
# overridden with the -l command line parameter.
default-log-dir: /var/log/suricata
# Configure the type of alert (and other) logging you would like.
outputs:
# a line based alerts log similar to Snort's fast.log
- fast:
enabled: yes
filename: fast.log
append: yes
# log output for use with Barnyard
- unified-log:
enabled: no
filename: unified.log
# Limit in MB.
#limit: 32
# alert output for use with Barnyard
- unified-alert:
enabled: no
filename: unified.alert
# Limit in MB.
#limit: 32
# alert output for use with Barnyard2
- unified2-alert:
enabled: yes
filename: unified2.alert
# Limit in MB.
#limit: 32
# a line based log of HTTP requests (no alerts)
- http-log:
enabled: yes
filename: http.log
append: yes
# Packet log... log packets in pcap format. 2 modes of operation: "normal"
# and "sguil".
#
# In normal mode a pcap file "filename" is created in the default-log-dir,
# or if filename is an absolute path a that path. In Sguil mode "sguil_base_dir"
# indicates the base directory. In this base dir the pcaps are created in the
# directory structure Sguil expects:
#
# $sguil_base_dir/YYYY-MM-DD/$filename.<timestamp>
#
# By default all packets are logged except:
# - TCP streams beyond stream.reassembly.depth
# - encrypted streams after the key exchange
#
- pcap-log:
enabled: no
filename: log.pcap
# Limit in MB.
#limit: 32
#mode: sguil # "normal" (default) or sguil.
#sguil_base_dir: /nsm_data/
# a full alerts log containing much information for signature writers
# or for investigating suspected false positives.
- alert-debug:
enabled: no
filename: alert-debug.log
append: yes
# alert output to prelude (http://www.prelude-technologies.com/) only
# available if Suricata has been compiled with --enable-prelude
- alert-prelude:
enabled: no
profile: suricata
log_packet_content: no
log_packet_header: yes
# Stats.log contains data from various counters of the suricata engine.
# The interval field (in seconds) tells after how long output will be written
# on the log file.
- stats:
enabled: yes
filename: stats.log
interval: 8
# a line based alerts log similar to fast.log into syslog
- syslog:
enabled: no
# reported identity to syslog. If ommited the program name (usually
# suricata) will be used.
#identity: "suricata"
facility: local5
#level: Info ## possible levels: Emergency, Alert, Critical,
## Error, Warning, Notice, Info, Debug
# a line based information for dropped packet
- drop:
enabled: yes
filename: drop.log
append: yes
# When running in NFQ inline mode, it is possible to use a simulated
# non-terminal NFQUEUE verdict.
# This permit to do send all needed packet to suricata via this a rule:
# iptables -I FORWARD -m mark ! --mark $MARK/$MASK -j NFQUEUE
# And below, you can have your standard filtering ruleset. To activate
# this mode, you need to set mode to 'repeat'
# If you want packet to be sent to another queue after an ACCEPT decision
# set mode to 'route' and set next_queue value.
nfq:
# mode: accept
# repeat_mark: 1
# repeat_mask: 1
# route_queue: 2
defrag:
max-frags: 65535
prealloc: yes
timeout: 60
# When run with the option --engine-analysis, the engine will read each of
# the parameters below, and print reports for each of the enabled sections
# and exit. The reports are printed to a file in the default log dir
# given by the parameter "default-log-dir", with engine reporting
# subsection below printing reports in its own report file.
engine-analysis:
# enables printing reports for fast-pattern for every rule.
rules-fast-pattern: yes
# You can specify a threshold config file by setting "threshold-file"
# to the path of the threshold config file:
# threshold-file: /etc/suricata/threshold.config
# The detection engine builds internal groups of signatures. The engine
# allow us to specify the profile to use for them, to manage memory on an
# efficient way keeping a good performance. For the profile keyword you
# can use the words "low", "medium", "high" or "custom". If you use custom
# make sure to define the values at "- custom-values" as your convenience.
# Usually you would prefer medium/high/low.
#
# "sgh mpm-context", indicates how the staging should allot mpm contexts for
# the signature groups. "single" indicates the use of a single context for
# all the signature group heads. "full" indicates a mpm_context for each
# group head. "auto" lets the engine decide the distribution of contexts
# based on the information the engine gathers on the patterns from each
# group head.
#
# The option inspection_recursion_limit is used to limit the recursive calls
# in the content inspection code. For certain payload-sig combinations, we
# might end up taking too much time in the content inspection code.
# If the argument specified is 0, the engine uses an internally defined
# default limit. On not specifying a value, we use no limits on the recursion.
detect-engine:
- profile: medium
- custom-values:
toclient_src_groups: 2
toclient_dst_groups: 2
toclient_sp_groups: 2
toclient_dp_groups: 3
toserver_src_groups: 2
toserver_dst_groups: 4
toserver_sp_groups: 2
toserver_dp_groups: 25
- sgh-mpm-context: auto
- inspection-recursion-limit: 3000
# Suricata is multi-threaded. Here the threading can be influenced.
threading:
# On some cpu's/architectures it is beneficial to tie individual threads
# to specific CPU's/CPU cores. In this case all threads are tied to CPU0,
# and each extra CPU/core has one "detect" thread.
#
# On Intel Core2 and Nehalem CPU's enabling this will degrade performance.
#
set_cpu_affinity: no
# Tune cpu affinity of suricata threads. Each family of threads can be bound
# on specific CPUs.
cpu_affinity:
- management_cpu_set:
cpu: [ 0 ] # include only these cpus in affinity settings
- receive_cpu_set:
cpu: [ 0 ] # include only these cpus in affinity settings
- decode_cpu_set:
cpu: [ 0, 1 ]
mode: "balanced"
- stream_cpu_set:
cpu: [ "0-1" ]
- detect_cpu_set:
cpu: [ "all" ]
mode: "exclusive" # run detect threads in these cpus
# Use explicitely 3 threads and don't compute number by using
# detect_thread_ratio variable:
# threads: 3
prio:
low: [ 0 ]
medium: [ "1-2" ]
high: [ 3 ]
default: "medium"
- verdict_cpu_set:
cpu: [ 0 ]
prio:
default: "high"
- reject_cpu_set:
cpu: [ 0 ]
prio:
default: "low"
- output_cpu_set:
cpu: [ "all" ]
prio:
default: "medium"
#
# By default Suricata creates one "detect" thread per available CPU/CPU core.
# This setting allows controlling this behaviour. A ratio setting of 2 will
# create 2 detect threads for each CPU/CPU core. So for a dual core CPU this
# will result in 4 detect threads. If values below 1 are used, less threads
# are created. So on a dual core CPU a setting of 0.5 results in 1 detect
# thread being created. Regardless of the setting at a minimum 1 detect
# thread will always be created.
#
detect_thread_ratio: 1.5
# Cuda configuration.
cuda:
# The "mpm" profile. On not specifying any of these parameters, the engine's
# internal default values are used, which are same as the ones specified here.
- mpm:
# Threshold limit for no of packets buffered to the GPU. Once we hit this
# limit, we pass the buffer to the gpu.
packet_buffer_limit: 2400
# The maximum length for a packet that we would buffer to the gpu.
# Anything over this is MPM'ed on the CPU. All entries > 0 are valid.
packet_size_limit: 1500
# No of packet buffers we initialize. All entries > 0 are valid.
packet_buffers: 10
# The timeout limit for batching of packets in secs. If we don't fill the
# buffer within this timeout limit, we pass the currently filled buffer to the gpu.
# All entries > 0 are valid.
batching_timeout: 1
# Specifies whether to use page_locked memory whereever possible. Accepted values
# are "enabled" and "disabled".
page_locked: enabled
# The device to use for the mpm. Currently we don't support load balancing
# on multiple gpus. In case you have multiple devices on your system, you
# can specify the device to use, using this conf. By default we hold 0, to
# specify the first device cuda sees. To find out device_id associated with
# the card(s) on the system run "suricata --list-cuda-cards".
device_id: 0
# No of Cuda streams used for asynchronous processing. All values > 0 are valid.
# For this option you need a device with Compute Capability > 1.0 and
# page_locked enabled to have any effect.
cuda_streams: 2
# Select the multi pattern algorithm you want to run for scan/search the
# in the engine. The supported algorithms are b2g, b2gc, b2gm, b3g, wumanber,
# ac and ac-gfbs.
#
# The mpm you choose also decides the distribution of mpm contexts for
# signature groups, specified by the conf - "detect-engine.sgh_mpm_context".
# Selecting "ac" as the mpm would require "detect-engine.sgh_mpm_context"
# to be set to "single", because of ac's memory requirements, unless the
# ruleset is small enough to fit in one's memory, in which case one can
# use "full" with "ac". Rest of the mpms can be run in "full" mode.
#
# There is also a CUDA pattern matcher (only available if Suricata was
# compiled with --enable-cuda: b2g_cuda. Make sure to update your
# max-pending-packets setting above as well if you use b2g_cuda.
mpm-algo: ac
# The memory settings for hash size of these algorithms can vary from lowest
# (2048) - low (4096) - medium (8192) - high (16384) - higher (32768) - max
# (65536). The bloomfilter sizes of these algorithms can vary from low (512) -
# medium (1024) - high (2048).
#
# For B2g/B3g algorithms, there is a support for two different scan/search
# algorithms. For B2g the scan algorithms are B2gScan & B2gScanBNDMq, and
# search algorithms are B2gSearch & B2gSearchBNDMq. For B3g scan algorithms
# are B3gScan & B3gScanBNDMq, and search algorithms are B3gSearch &
# B3gSearchBNDMq.
#
# For B2g the different scan/search algorithms and, hash and bloom
# filter size settings. For B3g the different scan/search algorithms and, hash
# and bloom filter size settings. For wumanber the hash and bloom filter size
# settings.
pattern-matcher:
- b2gc:
search_algo: B2gSearchBNDMq
hash_size: low
bf_size: medium
- b2gm:
search_algo: B2gSearchBNDMq
hash_size: low
bf_size: medium
- b2g:
search_algo: B2gSearchBNDMq
hash_size: low
bf_size: medium
- b3g:
search_algo: B3gSearchBNDMq
hash_size: low
bf_size: medium
- wumanber:
hash_size: low
bf_size: medium
# Flow settings:
# By default, the reserved memory (memcap) for flows is 32MB. This is the limit
# for flow allocation inside the engine. You can change this value to allow
# more memory usage for flows.
# The hash_size determine the size of the hash used to identify flows inside
# the engine, and by default the value is 65536.
# At the startup, the engine can preallocate a number of flows, to get a better
# performance. The number of flows preallocated is 10000 by default.
# emergency_recovery is the percentage of flows that the engine need to
# prune before unsetting the emergency state. The emergency state is activated
# when the memcap limit is reached, allowing to create new flows, but
# prunning them with the emergency timeouts (they are defined below).
# If the memcap is reached, the engine will try to prune prune_flows
# with the default timeouts. If it doens't find a flow to prune, it will set
# the emergency bit and it will try again with more agressive timeouts.
# If that doesn't work, then it will try to kill the last time seen flows
# not in use.
flow:
memcap: 33554432
hash_size: 65536
prealloc: 10000
emergency_recovery: 30
prune_flows: 5
# Specific timeouts for flows. Here you can specify the timeouts that the
# active flows will wait to transit from the current state to another, on each
# protocol. The value of "new" determine the seconds to wait after a hanshake or
# stream startup before the engine free the data of that flow it doesn't
# change the state to established (usually if we don't receive more packets
# of that flow). The value of "established" is the amount of
# seconds that the engine will wait to free the flow if it spend that amount
# without receiving new packets or closing the connection. "closed" is the
# amount of time to wait after a flow is closed (usually zero).
#
# There's an emergency mode that will become active under attack circumstances,
# making the engine to check flow status faster. This configuration variables
# use the prefix "emergency_" and work similar as the normal ones.
# Some timeouts doesn't apply to all the protocols, like "closed", for udp and
# icmp.
flow-timeouts:
default:
new: 30
established: 300
closed: 0
emergency_new: 10
emergency_established: 100
emergency_closed: 0
tcp:
new: 60
established: 3600
closed: 120
emergency_new: 10
emergency_established: 300
emergency_closed: 20
udp:
new: 30
established: 300
emergency_new: 10
emergency_established: 100
icmp:
new: 30
established: 300
emergency_new: 10
emergency_established: 100
# Stream engine settings. Here the TCP stream tracking and reaasembly
# engine is configured.
#
# stream:
# memcap: 33554432 # 32mb tcp session memcap
# checksum_validation: yes # To validate the checksum of received
# # packet. If csum validation is specified as
# # "yes", then packet with invalid csum will not
# # be processed by the engine stream/app layer.
# # Warning: locally generated trafic can be
# # generated without checksum due to hardware offload
# # of checksum
# max_sessions: 262144 # 256k concurrent sessions
# prealloc_sessions: 32768 # 32k sessions prealloc'd
# midstream: false # don't allow midstream session pickups
# async_oneside: false # don't enable async stream handling
# inline: no # stream inline mode
#
# reassembly:
# memcap: 67108864 # 64mb tcp reassembly memcap
# depth: 1048576 # 1 MB reassembly depth
# toserver_chunk_size: 2560 # inspect raw stream in chunks of at least
# # this size
# toclient_chunk_size: 2560 # inspect raw stream in chunks of at least
# # this size
stream:
memcap: 33554432 # 32mb
checksum_validation: yes # reject wrong csums
inline: no # no inline mode
reassembly:
memcap: 67108864 # 64mb for reassembly
depth: 1048576 # reassemble 1mb into a stream
toserver_chunk_size: 2560
toclient_chunk_size: 2560
# Logging configuration. This is not about logging IDS alerts, but
# IDS output about what its doing, errors, etc.
logging:
# The default log level, can be overridden in an output section.
# Note that debug level logging will only be emitted if Suricata was
# compiled with the --enable-debug configure option.
#
# This value is overriden by the SC_LOG_LEVEL env var.
default-log-level: info
# The default output format. Optional parameter, should default to
# something reasonable if not provided. Can be overriden in an
# output section. You can leave this out to get the default.
#
# This value is overriden by the SC_LOG_FORMAT env var.
#default-log-format: "[%i] %t - (%f:%l) <%d> (%n) -- "
# A regex to filter output. Can be overridden in an output section.
# Defaults to empty (no filter).
#
# This value is overriden by the SC_LOG_OP_FILTER env var.
default-output-filter:
# Define your logging outputs. If none are defined, or they are all
# disabled you will get the default - console output.
outputs:
- console:
enabled: no
- file:
enabled: yes
filename: /var/log/suricata.log
- syslog:
enabled: no
facility: local5
format: "[%i] <%d> -- "
# PF_RING configuration. for use with native PF_RING support
# for more info see http://www.ntop.org/PF_RING.html
pfring:
# Number of receive threads (>1 will enable experimental flow pinned
# runmode)
threads: 1
# Default interface we will listen on.
interface: eth0
# Default clusterid. PF_RING will load balance packets based on flow.
# All threads/processes that will participate need to have the same
# clusterid.
cluster-id: 99
# Default PF_RING cluster type. PF_RING can load balance per flow or per hash.
# This is only supported in versions of PF_RING > 4.1.1.
cluster-type: cluster_round_robin
# For FreeBSD ipfw(8) divert(4) support.
# Please make sure you have ipfw_load="YES" and ipdivert_load="YES"
# in /etc/loader.conf or kldload'ing the appropriate kernel modules.
# Additionally, you need to have an ipfw rule for the engine to see
# the packets from ipfw. For Example:
#
# ipfw add 100 divert 8000 ip from any to any
#
# The 8000 above should be the same number you passed on the command
# line, i.e. -d 8000
#
ipfw:
# Reinject packets at the specified ipfw rule number. This config
# option is the ipfw rule number AT WHICH rule processing continues
# in the ipfw processing system after the engine has finished
# inspecting the packet for acceptance. If no rule number is specified,
# accepted packets are reinjected at the divert rule which they entered
# and IPFW rule processing continues. No check is done to verify
# this will rule makes sense so care must be taken to avoid loops in ipfw.
#
## The following example tells the engine to reinject packets
# back into the ipfw firewall AT rule number 5500:
#
# ipfw-reinjection-rule-number: 5500
# Set the default rule path here to search for the files.
# if not set, it will look at the current working dir
default-rule-path: /etc/suricata/rules/
rule-files:
# - attack-responses.rules
# - backdoor.rules
# - bad-traffic.rules
# - chat.rules
# - ddos.rules
# - deleted.rules
# - dns.rules
# - dos.rules
# - experimental.rules
# - exploit.rules
# - finger.rules
# - ftp.rules
# - icmp-info.rules
# - icmp.rules
# - imap.rules
# - info.rules
- local.rules
# - misc.rules
# - multimedia.rules
# - mysql.rules
# - netbios.rules
# - nntp.rules
# - oracle.rules
# - other-ids.rules
# - p2p.rules
# - policy.rules
## - pop2.rules
# - pop3.rules
# - porn.rules
## - rpc.rules
# - rservices.rules
# - scada.rules
# - scan.rules
# - shellcode.rules
# - smtp.rules
# - snmp.rules
# - specific-threats.rules
# - spyware-put.rules
# - sql.rules
# - telnet.rules
# - tftp.rules
## - virus.rules
# - voip.rules
# - web-activex.rules
# - web-attacks.rules
# - web-cgi.rules
# - web-client.rules
# - web-coldfusion.rules
# - web-frontpage.rules
# - web-iis.rules
# - web-misc.rules
# - web-php.rules
# - x11.rules
- emerging-attack_response.rules
- emerging-dos.rules
- emerging-exploit.rules
- emerging-game.rules
- emerging-inappropriate.rules
- emerging-malware.rules
- emerging-p2p.rules
- emerging-policy.rules
- emerging-scan.rules
- emerging-virus.rules
- emerging-voip.rules
- emerging-web.rules
- emerging-web_client.rules
- emerging-web_server.rules
- emerging-web_specific_apps.rules
- emerging-user_agents.rules
- emerging-current_events.rules
classification-file: /etc/suricata/classification.config
reference-config-file: /etc/suricata/reference.config
# Holds variables that would be used by the engine.
vars:
# Holds the address group vars that would be passed in a Signature.
# These would be retrieved during the Signature address parsing stage.
address-groups:
HOME_NET: "[192.168.0.0/8,208.67.222.222,208.67.220.220]"
EXTERNAL_NET: !$HOME_NET
HTTP_SERVERS: "[192.168.0.2,192.168.0.3,192.168.0.17,192.168.0.23,192.168.0.31,192.168.0.32]"
SMTP_SERVERS: "[192.168.0.23]"
SQL_SERVERS: "[10.0.32.6,10.0.32.5,10.0.32.7]"
DNS_SERVERS: "[192.168.0.28,192.168.0.23,208.67.222.222,208.67.220.220]"
TELNET_SERVERS: "$HOME_NET"
AIM_SERVERS: any
# Holds the port group vars that would be passed in a Signature.
# These would be retrieved during the Signature port parsing stage.
port-groups:
HTTP_PORTS: "[80,8080,8180]"
SHELLCODE_PORTS: "!80"
ORACLE_PORTS: 1521
SSH_PORTS: 22
# Host specific policies for defragmentation and TCP stream
# reassembly. The host OS lookup is done using a radix tree, just
# like a routing table so the most specific entry matches.
host-os-policy:
# Make the default policy windows.
windows: [0.0.0.0/0]
bsd: []
bsd_right: []
old_linux: []
linux: []
old_solaris: []
solaris: ["::1"]
hpux10: []
hpux11: []
irix: []
macos: []
vista: []
windows2k3: []
# Limit for the maximum number of asn1 frames to decode (default 256)
asn1_max_frames: 256
###########################################################################
# Configure libhtp.
#
#
# default-config: Used when no server-config matches
# personality: List of personalities used by default
# request_body_limit: Limit reassembly of request body for inspection
# by http_client_body & pcre /P option.
#
# server-config: List of server configurations to use if address matches
# address: List of ip addresses or networks for this block
# personalitiy: List of personalities used by this block
# request_body_limit: Limit reassembly of request body for inspection
# by http_client_body & pcre /P option.
#
# Currently Available Personalities:
# Minimal
# Generic
# IDS (default)
# IIS_4_0
# IIS_5_0
# IIS_5_1
# IIS_6_0
# IIS_7_0
# IIS_7_5
# Apache
# Apache_2_2
###########################################################################
libhtp:
default-config:
personality: IDS
request_body_limit: 3072
server-config:
- apache:
address: [192.168.1.0/24, 127.0.0.0/8, "::1"]
personality: Apache_2_2
request_body_limit: 4096
- iis7:
address:
- 192.168.0.0/24
- 192.168.10.0/24
personality: IIS_7_0
request_body_limit: 4096
# rule profiling settings. Only effective if Suricata has been built with the
# the --enable-profiling configure flag.
#
profiling:
rules:
# Profiling can be disabled here, but it will still have a
# performance impact if compiled in.
enabled: yes
filename: perf.log
append: yes
# Sort options: ticks, avgticks, checks, matches, maxticks
sort: avgticks
# Limit the number of items printed at exit.
limit: 100
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