Re: Snort 2.9.4.5 rules using pp

[James Lay <digitalx00 () gmail com>]

I'm assuming you only have something like this:

include $RULE_PATH/snort.rules
include $RULE_PATH/local.rules

in your snort.conf file…and not a bunch of these?  And that rules file you have should work fine.

James


On Apr 24, 2013, at 12:07 AM, Ashraf Ali <ashrafali.ibs () gmail com> wrote:

> Can some body  pls check ...
>
> Below are some the rules from snort.rules file , which PP has created.
>
> # alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"SERVER-IIS bdir.htr access"; 
> flow:to_server,established; content:"/bdir.htr"; nocase; http_uri; metadata:service http; reference:bugtraq,2280; 
> reference:nessus,10577; classtype:web-application-activity; sid:1000; rev:22;)
> alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"SERVER-WEBAPP carbo.dll access"; 
> flow:to_server,established; content:"/carbo.dll"; http_uri; content:"icatcommand="; nocase; metadata:policy 
> security-ips drop, service http; reference:bugtraq,2126; reference:cve,1999-1069; classtype:attempted-recon; 
> sid:1001; rev:16;)
> # alert tcp $EXTERNAL_NET 22 -> $HOME_NET any (msg:"EXPLOIT Putty Server key exchange buffer overflow attempt"; 
> flow:to_client,established,no_stream; content:"SSH-"; depth:4; isdataat:1000,relative; 
> pcre:"/SSH-0*([2-9]\d*|1\d+)\.[^-]*-[^\n]*\n\x00\x00.{3}\x14.{1000}/s"; reference:bugtraq,6407; 
> reference:cve,2002-1359; reference:url,www.rapid7.com/advisories/R7-0009.html; classtype:attempted-user; sid:10010; 
> rev:6;)
> alert tcp $EXTERNAL_NET any -> $HOME_NET 143 (msg:"SERVER-MAIL Novell NetMail APPEND command buffer overflow 
> attempt"; flow:established,to_server; content:"AP"; nocase; isdataat:256,relative; 
> pcre:"/\sAP[A-Za-z]{4}\s[^\n]{256}/smi"; metadata:policy security-ips drop, service imap; reference:bugtraq,21723; 
> reference:cve,2006-6425; classtype:misc-attack; sid:10011; rev:11;)
> alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"BROWSER-PLUGINS CCRP FolderTreeView ActiveX clsid access"; 
> flow:to_client,established; file_data; content:"19B7F2D6-1610-11D3-BF30-1AF820524153"; fast_pattern:only; 
> pcre:"/<OBJECT\s*[^>]*\s*classid\s*=\s*(\x22|\x27|)\s*clsid\s*\x3a\s*{?\s*19B7F2D6-1610-11D3-BF30-1AF820524153\s*}?\s*\1/si";
>  metadata:policy security-ips drop, service http; reference:bugtraq,22092; 
> reference:url,ccrp.mvps.org/index.html?controls/ccrpftv6.htm; classtype:attempted-user; sid:10013; rev:11;)
> alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"BROWSER-PLUGINS Oracle ORADC ActiveX clsid access"; 
> flow:to_client,established; file_data; content:"EC4CF635-D196-11CE-9027-02608C4BF3B5"; fast_pattern:only; 
> pcre:"/<OBJECT\s*[^>]*\s*id\s*=((\x22|\x27)([^\2]*)\2)\s*classid\s*=\s*(\x22|\x27|)clsid\s*\x3a\s*{?\s*EC4CF635-D196-11CE-9027-02608C4BF3B5\s*}?\4.*\3\.(UpdateRecord)\(|<OBJECT\s*[^>]*\s*classid\s*=\s*(\x22|\x27|)\s*clsid\s*\x3a\s*{?\s*EC4CF635-D196-11CE-9027-02608C4BF3B5\s*}?\s*\6\s*id\s*=\s*((\x22|\x27)([^\8]*)\8).*\9\.(UpdateRecord)\(/siO";
>  metadata:policy security-ips drop, service http; reference:bugtraq,22026; classtype:attempted-user; sid:10015; 
> rev:13;)
> alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"BROWSER-PLUGINS Oracle ORADC ActiveX function call 
> access"; flow:to_client,established; file_data; content:"ORADC.ORADCCtrl"; fast_pattern:only; 
> pcre:"/(\w+)\s*=\s*(\x22ORADC.ORADCCtrl\x22|\x27ORADC.ORADCCtrl\x27)\s*\x3b.*(\w+)\s*=\s*new\s*ActiveXObject\s*\(\s*\1\s*\)(\s*\.\s*(UpdateRecord)\s*\(|.*\3\s*\.\s*(UpdateRecord)\s*\()|(\w+)\s*=\s*new\s*ActiveXObject\s*\(\s*(\x22ORADC.ORADCCtrl\x22|\x27ORADC.ORADCCtrl\x27)\s*\)(\s*\.\s*(UpdateRecord)\s*\(|.*\7\s*\.\s*(UpdateRecord)\s*\()/smi";
>  metadata:policy security-ips drop, service http; reference:bugtraq,22026; classtype:attempted-user; sid:10017; 
> rev:9;)
> alert tcp $EXTERNAL_NET any -> $HOME_NET 6502 (msg:"NETBIOS DCERPC NCACN-IP-TCP brightstor-arc ReserveGroup attempt"; 
> flow:established,to_server; dce_iface:62B93DF0-8B02-11CE-876C-00805F842837; dce_opnum:38; metadata:policy 
> balanced-ips drop, policy connectivity-ips drop, policy security-ips drop, service dcerpc; reference:cve,2006-6076; 
> reference:cve,2006-6917; reference:url,www.lssec.com/advisories/LS-20061001.pdf; classtype:protocol-command-decode; 
> sid:10018; rev:9;)
> \d)?\x27)\s*\)(\s*\.\s*(SetFormatLikeSample|CreateFile)\s*|.*(?P=n)\s*\.\s*(SetFormatLikeSample|CreateFile)\s*)\s*\(/smiO";
>  metadata:policy security-ips drop, service http; reference:bugtraq,22196; reference:bugtraq,33469; 
> reference:cve,2007-0018; reference:url,www.kb.cert.org/vuls/id/292713; classtype:attempted-user; sid:10086; rev:10;)
>
>
> and in the snort.conf file i have HOME_NET AND EXTERNAL_NET variables configured as below.
>  
> ipvar HOME_NET any
>
> ipvar EXTERNAL_NET any
>
> i have manually downloaded the latest snapshot of rules from snort.org and copied some of the rules files in to a 
> single file called new.rules, then configured the snort.conf to use this rule file only, restarted the snort services 
> ,Its working fine. i can see the alerts , log file is also filling up.
>
> But could not figure out what the problem with snort.rules file which PP has created.
>
> Regards,
> Ashraf
>
>
>
>
>
> On Tue, Apr 23, 2013 at 4:44 PM, James Lay <jlay () slave-tothe-box net> wrote:
> Let's see one of the rules, and what sdo your HOME_NET and EXTERNAL_NET look like?
>
> James
>
> On Apr 22, 2013, at 10:40 PM, Ashraf Ali <ashrafali.ibs () gmail com> wrote:
>
> > yes, if i use the command (snort -c /usr/local/snort/snort.conf -i eth0 -A)  and can see lots of traffic on the 
> > console but nothing is getting dump in the log file, it is still 0 Bytes.
> >
> > i did a R&D , by creating a file called local.rules in the same rules folder and added a signature (alert tcp any 
> > any -> any any(msg:"Tcp traffic found" sid:1000001);
> > in the snort.conf file i put a # before include statement of snort.rules line and added local.rules 
> > later restarted both snort and barnyard2 Deamons , Guess what i can see log file filling up, and in GUI i can see 
> > the alerts.
> >
> > There seems to be some problem with the snort.rules file which PP has created.
> >
> > Regards,
> > Ashraf
> > Security System Engineer.
> >
> >
> >  
> >
> >
> > On Mon, Apr 22, 2013 at 9:37 PM, Y M <snort () outlook com> wrote:
> > If you run snort with -A console or -A cmg, do you see any alerts on the console?
> >
> > Also run tcpdump against the interface you are listening from, simply
> >
> > tcpdump -i ethX -v
> >
> > Do you see any traffic? Replace ethX with your interface.
> > From: Ashraf Ali
> > Sent: 4/22/2013 3:37 PM
> > To: snort-users () lists sourceforge net
> > Subject: [Snort-users] Snort 2.9.4.5 rules using pp
> >
> > Hi All,
> >
> > recently i have deployed snort in ubuntu 12.04 using Autosnort , during the installation PP asked for Oinkcode ,as i 
> > am a registered user so i have provided the same.
> > After completion of the installation, i have seen that snort and barnyard2 services are running in Deamon mode, and 
> > in /var/log/snort folder a file with name snort.u2.1366**** is also created but empty(0 bytes).
> >
> > -rw-r--r--  1 snort snort    2056 Apr 22 17:54 barnyard2.waldo
> > -rw-------  1 snort snort         0 Apr 22 17:54 snort.u2.136662*****
> >
> > there is a single rules file called snort.rules in /usr/local/snort/rules folder which has all the downloaded snort 
> > rules, and same is included in the snort.conf file.  
> > Even i have run the snort in test mode using -T , it does not shows up any problem, its working fine but not 
> > generating any logs.
> >
> > I have formated the server , and re-installed every thing manually this time. still the same problem. file is 
> > getting created but no logs.
> >
> > pls Advice.
> >
> > Ashraf
> > Security System Egnineer
> >
> >  
> >
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