[Oisf-users] Fwd: IPS
Anas.B
a.bouhsaina at gmail.com
Fri Jun 11 14:29:51 UTC 2010
After Ctrl+C
2810] 11/6/2010 -- 15:11:06 - (detect.c:202) <Info> (DetectExitPrintStats)
-- 7 sigs per mpm match on avg needed inspection, total mpm searches 5, less
than 25 sigs need inspect 5, more than 100 sigs need inspect 0, more than
1000 0 max 19
[2811] 11/6/2010 -- 15:11:06 - (source-nfq.c:533) <Info>
(VerdictNFQThreadExitStats) -- (Verdict) Pkts accepted 27, dropped 2000
[2813] 11/6/2010 -- 15:11:06 - (alert-fastlog.c:256) <Info>
(AlertFastLogExitPrintStats) -- (Outputs) Alerts 2550
[2813] 11/6/2010 -- 15:11:06 - (alert-unified-log.c:304) <Info>
(AlertUnifiedLogThreadDeinit) -- Alert unified1 log module wrote 2550 alerts
[2813] 11/6/2010 -- 15:11:06 - (alert-unified-alert.c:281) <Info>
(AlertUnifiedAlertThreadDeinit) -- Alert unified1 alert module wrote 2550
alerts
[2813] 11/6/2010 -- 15:11:06 - (alert-unified2-alert.c:582) <Info>
(Unified2AlertThreadDeinit) -- Alert unified2 module wrote 2550 alerts
[2813] 11/6/2010 -- 15:11:06 - (log-httplog.c:391) <Info>
(LogHttpLogExitPrintStats) -- (Outputs) HTTP requests 0
[2813] 11/6/2010 -- 15:11:06 - (alert-debuglog.c:254) <Info>
(AlertDebugLogExitPrintStats) -- (Outputs) Alerts 2550
[2814] 11/6/2010 -- 15:11:06 - (flow.c:767) <Info> (FlowManagerThread) --
2007 new flows, 2 established flows were timed out, 0 flows in closed state
[2798] 11/6/2010 -- 15:11:06 - (flow.c:588) <Info> (FlowPrintQueueInfo) --
flowbits added: 0, removed: 0, max memory usage: 0
[2798] 11/6/2010 -- 15:11:06 - (stream-tcp.c:365) <Info>
(StreamTcpFreeConfig) -- Max memuse of stream engine 15021952 (in use 0)
[2798] 11/6/2010 -- 15:11:06 - (detect.c:2492) <Info>
(SigAddressCleanupStage1) -- cleaning up signature grouping structure...
[2798] 11/6/2010 -- 15:11:07 - (detect.c:2509) <Info>
(SigAddressCleanupStage1) -- cleaning up signature grouping structure...
done
We can see 2000 "dropped"
2010/6/11 Anas.B <a.bouhsaina at gmail.com>
> Bjr,
> oui je crois que t'a raison,
> quel genre de règle facile que je px bloquer ?
>
> Merciiiiii
>
> 2010/6/11 rmkml <rmkml at free.fr>
>
> Bonjour Anas,
>> suite à l'email de Victor, et je crois que les scan nmap sont particulier,
>> c-a-d que les scans ouvrent de multiples sessions, ce qui n'est pas un cas
>> facile pour commencer...
>> Essaye plus tot une attaque sur une regle, puis tu l'as bloque...
>> attention au cache des navigatuers web...
>> a+
>> Rmkml
>>
>>
>>
>> On Fri, 11 Jun 2010, Anas.B wrote:
>>
>>
>>> Hello,
>>>
>>> I've replaced "alert" by"drop" where we have "Nmap" rules in
>>> emerging-scan.rules file ,
>>>
>>> but I've the same result in Nmap:
>>>
>>> Starting Nmap 5.21 ( http://nmap.org ) at 2010-06-11 14:49 Afr. centrale
>>> Ouest
>>> Nmap scan report for 192.168.44.135
>>> Host is up (0.00s latency).
>>> All 1000 scanned ports on 192.168.44.135 are filtered
>>> MAC Address: 00:0C:29:07:11:87 (VMware)
>>> as before !!!
>>>
>>> why the packets aren't dropped ?
>>>
>>> These are the commands applied :
>>> suricata -c /etc/suricata/suricata.yaml -q 0
>>>
>>> and this is the iptables :
>>>
>>> NFQUEUE all -- anywhere anywhere NFQUEUE num
>>> 0
>>>
>>> Chain FORWARD (policy ACCEPT)
>>> target prot opt source destination
>>>
>>> Chain OUTPUT (policy ACCEPT)
>>> target prot opt source destination
>>> NFQUEUE all -- anywhere anywhere NFQUEUE num
>>> 0
>>>
>>>
>>> Kindest regards :)
>>>
>>> Anas
>>>
>>> Nmap done: 1 IP address (1 host up) scanned in 23.16 seconds
>>>
>>>
>>> 2010/6/9 Victor Julien <victor at inliniac.net>
>>> All rules might be a bit much, but in essence, yes. But be careful
>>> that
>>> some rules might false positive.
>>>
>>> Cheers,
>>> Victor
>>>
>>> Anas.B wrote:
>>> > I've just coppied the emerging rules ,
>>> >
>>> > should i copy snort rules also ?
>>> > should i convert all the rules from alert to Drop ?
>>> >
>>> >
>>> > Thxxx
>>> >
>>> >
>>> > 2010/6/9 Victor Julien <victor at inliniac.net <mailto:
>>> victor at inliniac.net>>
>>> >
>>> > Making progress :)
>>> >
>>> > Do you have drop rules? Normally a rule is "alert ip any any -> any
>>> any
>>> > ... " etc. but you need "drop ip any any -> any ...." Did you
>>> convert
>>> > your rules?
>>> >
>>> > The TmqDebugList statements are debug stuff, you can ignore that.
>>> >
>>> > Cheers,
>>> > Victor
>>> >
>>> > Anas.B wrote:
>>> > > Thank you so much, for ur help :)
>>> > >
>>> > > this time I've these lines :
>>> > >
>>> > > 'pickup-queue', len 0
>>> > > TmqDebugList: id 1, name 'decode-queue1', len 0
>>> > > TmqDebugList: id 2, name 'stream-queue1', len 49
>>> > > TmqDebugList: id 3, name 'verdict-queue', len 0
>>> > > TmqDebugList: id 4, name 'respond-queue', len 1
>>> > > TmqDebugList: id 5, name 'alert-queue1', len 0
>>> > >
>>> > > after an Nmap scan
>>> > >
>>> > >
>>> > > after CTRL+C
>>> > >
>>> > > I've this :
>>> > >
>>> > > 4:33 - (suricata.c:1033) <Info> (main) -- signal received
>>> > > [8495] 9/6/2010 -- 16:04:33 - (suricata.c:1069) <Info> (main) --
>>> time
>>> > > elapsed 176s
>>> > > [8500] 9/6/2010 -- 16:04:33 - (source-nfq.c:522) <Info>
>>> > > (ReceiveNFQThreadExitStats) -- (ReceiveNFQ) Pkts 6028, Bytes
>>> 256012,
>>> > > Errors 0
>>> > > [8502] 9/6/2010 -- 16:04:33 - (stream-tcp.c:2634) <Info>
>>> > > (StreamTcpExitPrintStats) -- (Stream1) Packets 6014
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:172) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) (1byte) Pkts 6028, Searched 0
>>> > (0.0).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:175) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) (2byte) Pkts 6028, Searched 4
>>> > (0.1).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:178) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) (3byte) Pkts 6028, Searched 0
>>> > (0.0).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:181) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) (4byte) Pkts 6028, Searched 0
>>> > (0.0).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:184) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) (+byte) Pkts 6028, Searched 0
>>> > (0.0).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:188) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) URI (1byte) Uri's 0, Searched
>>> > 0 (-nan).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:191) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) URI (2byte) Uri's 0, Searched
>>> > 0 (-nan).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:194) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) URI (3byte) Uri's 0, Searched
>>> > 0 (-nan).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:197) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) URI (4byte) Uri's 0, Searched
>>> > 0 (-nan).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:200) <Info>
>>> > > (DetectExitPrintStats) -- (Detect1) URI (+byte) Uri's 0, Searched
>>> > 0 (-nan).
>>> > > [8503] 9/6/2010 -- 16:04:33 - (detect.c:202) <Info>
>>> > > (DetectExitPrintStats) -- 4 sigs per mpm match on avg needed
>>> > inspection,
>>> > > total mpm searches 2, less than 25 sigs need inspect 2, more than
>>> 100
>>> > > sigs need inspect 0, more than 1000 0 max 5
>>> > > [8504] 9/6/2010 -- 16:04:33 - (source-nfq.c:533) <Info>
>>> > > (VerdictNFQThreadExitStats) -- (Verdict) Pkts accepted 6028,
>>> dropped 0
>>> > > [8506] 9/6/2010 -- 16:04:33 - (alert-fastlog.c:256) <Info>
>>> > > (AlertFastLogExitPrintStats) -- (Outputs) Alerts 3792
>>> > > [8506] 9/6/2010 -- 16:04:33 - (alert-unified-log.c:304) <Info>
>>> > > (AlertUnifiedLogThreadDeinit) -- Alert unified1 log module wrote
>>> > 3792 alerts
>>> > > [8506] 9/6/2010 -- 16:04:33 - (alert-unified-alert.c:281) <Info>
>>> > > (AlertUnifiedAlertThreadDeinit) -- Alert unified1 alert module
>>> wrote
>>> > > 3792 alerts
>>> > > [8506] 9/6/2010 -- 16:04:33 - (alert-unified2-alert.c:582) <Info>
>>> > > (Unified2AlertThreadDeinit) -- Alert unified2 module wrote 3792
>>> alerts
>>> > > [8506] 9/6/2010 -- 16:04:33 - (log-httplog.c:391) <Info>
>>> > > (LogHttpLogExitPrintStats) -- (Outputs) HTTP requests 0
>>> > > [8506] 9/6/2010 -- 16:04:33 - (alert-debuglog.c:254) <Info>
>>> > > (AlertDebugLogExitPrintStats) -- (Outputs) Alerts 3792
>>> > > [8507] 9/6/2010 -- 16:04:33 - (flow.c:767) <Info>
>>> > (FlowManagerThread) --
>>> > > 6 new flows, 1000 established flows were timed out, 0 flows in
>>> > closed state
>>> > > [8495] 9/6/2010 -- 16:04:33 - (flow.c:588) <Info>
>>> (FlowPrintQueueInfo)
>>> > > -- flowbits added: 0, removed: 0, max memory usage: 0
>>> > > [8495] 9/6/2010 -- 16:04:33 - (stream-tcp.c:365) <Info>
>>> > > (StreamTcpFreeConfig) -- Max memuse of stream engine 15021952 (in
>>> > use 0)
>>> > > [8495] 9/6/2010 -- 16:04:33 - (detect.c:2492) <Info>
>>> > > (SigAddressCleanupStage1) -- cleaning up signature grouping
>>> > structure...
>>> > > [8495] 9/6/2010 -- 16:04:33 - (detect.c:2509) <Info>
>>> > > (SigAddressCleanupStage1) -- cleaning up signature grouping
>>> > structure...
>>> > > done
>>> > >
>>> > >
>>> > > is this normal ?
>>> > > (just alerts no Dropped !!!!)
>>> > >
>>> > > I've done the Nmap scan from Windows
>>> > >
>>> > >
>>> > > Sorry for the inconvenience
>>> > > Cheers
>>> > >
>>> > >
>>> > >
>>> > > 2010/6/9 Victor Julien <victor at inliniac.net
>>> > <mailto:victor at inliniac.net> <mailto:victor at inliniac.net
>>> > <mailto:victor at inliniac.net>>>
>>> > >
>>> > > In the config below you only send outgoing HTTP traffic to
>>> > Suricata. To
>>> > > inspect all do:
>>> > >
>>> > > iptables -A INPUT -j NFQUEUE
>>> > > iptables -A OUTPUT -j NFQUEUE
>>> > >
>>> > > Cheers,
>>> > > Victor
>>> > >
>>> > > Anas.B wrote:
>>> > > > I didn't configure Iptables,
>>> > > >
>>> > > > now i have the two lines
>>> > > >
>>> > > > Chain INPUT (policy ACCEPT)
>>> > > > target prot opt source destination
>>> > > > NFQUEUE tcp -- anywhere anywhere
>>> tcp
>>> > > spt:www
>>> > > > NFQUEUE num 0
>>> > > >
>>> > > > Chain FORWARD (policy ACCEPT)
>>> > > > target prot opt source destination
>>> > > >
>>> > > > Chain OUTPUT (policy ACCEPT)
>>> > > > target prot opt source destination
>>> > > > NFQUEUE tcp -- anywhere anywhere
>>> tcp
>>> > > dpt:www
>>> > > > NFQUEUE num 0
>>> > > >
>>> > > > But still no alerts/Drop/reject nmap scan
>>> > > >
>>> > > > Best Regards
>>> > > >
>>> > > > 2010/6/9 Victor Julien <victor at inliniac.net
>>> > <mailto:victor at inliniac.net>
>>> > > <mailto:victor at inliniac.net <mailto:victor at inliniac.net>>
>>> > <mailto:victor at inliniac.net <mailto:victor at inliniac.net>
>>> > > <mailto:victor at inliniac.net <mailto:victor at inliniac.net>>>>
>>> > > >
>>> > > > In that case you'd need:
>>> > > >
>>> > > > iptables -A OUTPUT -p tcp --dport 80 -j NFQUEUE
>>> > > > iptables -A INPUT -p tcp --sport 80 -j NFQUEUE
>>> > > >
>>> > > > This would send outgoing http traffic (the vm browsing
>>> > the web) to
>>> > > > Suricata.
>>> > > >
>>> > > > Cheers,
>>> > > > Victor
>>> > > >
>>> > > > Anas.B wrote:
>>> > > > > No, I'm just trying this in local Virtual Machine
>>> Ubuntu).
>>> > > > >
>>> > > > > since there is no much Doc, i'm a little lost.
>>> > > > >
>>> > > > > thaks a lot
>>> > > > >
>>> > > > >
>>> > > > > 2010/6/9 Victor Julien <victor at inliniac.net
>>> > <mailto:victor at inliniac.net>
>>> > > <mailto:victor at inliniac.net <mailto:victor at inliniac.net>>
>>> > > > <mailto:victor at inliniac.net <mailto:
>>> victor at inliniac.net>
>>> > <mailto:victor at inliniac.net <mailto:victor at inliniac.net>>>
>>> > > <mailto:victor at inliniac.net <mailto:victor at inliniac.net>
>>> > <mailto:victor at inliniac.net <mailto:victor at inliniac.net>>
>>> > > > <mailto:victor at inliniac.net <mailto:
>>> victor at inliniac.net>
>>> > <mailto:victor at inliniac.net <mailto:victor at inliniac.net>>>>>
>>> > > > >
>>> > > > > Did you add the appropriate iptables rules?
>>> > > > >
>>> > > > > For example for getting port 80 to suricata:
>>> > > > >
>>> > > > > iptables -A FORWARD -p tcp --dport 80 -j NFQUEUE
>>> > > > >
>>> > > > > Cheers,
>>> > > > > Victor
>>> > > > >
>>> > > > > Anas.B wrote:
>>> > > > > >
>>> > > > > > Hello,
>>> > > > > >
>>> > > > > > I've just tested a nmap,
>>> > > > > >
>>> > > > > > I noticed more unified files
>>> > > > > > and alerts in the file fast.log
>>> > > > > > new values in alert-debug.log and stats.log
>>> > > > > >
>>> > > > > > that means it works !!
>>> > > > > >
>>> > > > > > But with the command ==> *# suricata -c
>>> > > > > /etc/suricata/suricata.yaml -q 0
>>> > > > > >
>>> > > > > > *I have no logs,
>>> > > > > > any suggestions
>>> > > > > >
>>> > > > > > thanks :)
>>> > > > > >
>>> > > > > >
>>> > > > > >
>>> > > > >
>>> > > >
>>> > >
>>> >
>>> ------------------------------------------------------------------------
>>> > > > > >
>>> > > > > > _______________________________________________
>>> > > > > > Oisf-users mailing list
>>> > > > > > Oisf-users at openinfosecfoundation.org
>>> > <mailto:Oisf-users at openinfosecfoundation.org>
>>> > > <mailto:Oisf-users at openinfosecfoundation.org
>>> > <mailto:Oisf-users at openinfosecfoundation.org>>
>>> > > > <mailto:Oisf-users at openinfosecfoundation.org
>>> > <mailto:Oisf-users at openinfosecfoundation.org>
>>> > > <mailto:Oisf-users at openinfosecfoundation.org
>>> > <mailto:Oisf-users at openinfosecfoundation.org>>>
>>> > > > > <mailto:Oisf-users at openinfosecfoundation.org
>>> > <mailto:Oisf-users at openinfosecfoundation.org>
>>> > > <mailto:Oisf-users at openinfosecfoundation.org
>>> > <mailto:Oisf-users at openinfosecfoundation.org>>
>>> > > > <mailto:Oisf-users at openinfosecfoundation.org
>>> > <mailto:Oisf-users at openinfosecfoundation.org>
>>> > > <mailto:Oisf-users at openinfosecfoundation.org
>>> > <mailto:Oisf-users at openinfosecfoundation.org>>>>
>>> > > > > >
>>> > > >
>>> > http://lists.openinfosecfoundation.org/mailman/listinfo/oisf-users
>>> > > > >
>>> > > > >
>>> > > > > --
>>> > > > > ---------------------------------------------
>>> > > > > Victor Julien
>>> > > > > http://www.inliniac.net/
>>> > > > > PGP: http://www.inliniac.net/victorjulien.asc
>>> > > > > ---------------------------------------------
>>> > > > >
>>> > > > >
>>> > > >
>>> > > >
>>> > > > --
>>> > > > ---------------------------------------------
>>> > > > Victor Julien
>>> > > > http://www.inliniac.net/
>>> > > > PGP: http://www.inliniac.net/victorjulien.asc
>>> > > > ---------------------------------------------
>>> > > >
>>> > > >
>>> > >
>>> > >
>>> > > --
>>> > > ---------------------------------------------
>>> > > Victor Julien
>>> > > http://www.inliniac.net/
>>> > > PGP: http://www.inliniac.net/victorjulien.asc
>>> > > ---------------------------------------------
>>> > >
>>> > >
>>> >
>>> >
>>> > --
>>> > ---------------------------------------------
>>> > Victor Julien
>>> > http://www.inliniac.net/
>>> > PGP: http://www.inliniac.net/victorjulien.asc
>>> > ---------------------------------------------
>>> >
>>> >
>>>
>>>
>>> --
>>> ---------------------------------------------
>>> Victor Julien
>>> http://www.inliniac.net/
>>> PGP: http://www.inliniac.net/victorjulien.asc
>>> ---------------------------------------------
>>>
>>>
>>>
>>>
>>>
>
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