Re: How to Ignore certain alerts

[Brian Fagan <bfagan () teleformix com>]

In BASE if you click on the snort link in the signature it will take you to a Snort page that gives you an error, if 
you look at the end of the link you will see something like 1:3254, the first number is the gen_id and the seconed 
number is the sig_id. 
----- Original Message ----- 
From: "Daniel Qian" <daniel.qian () supracanada com> 
To: "Joel Esler" <jesler () sourcefire com> 
Cc: snort-users () lists sourceforge net 
Sent: Saturday, September 19, 2009 9:02:55 PM GMT -06:00 US/Canada Central 
Subject: Re: [Snort-users] How to Ignore certain alerts 


How do I get the value for gen_id, sig_id from the Base output to put in threshold.conf file? 


----- Original Message ----- 
From: Joel Esler 
To: Daniel Qian 
Cc: snort-users () lists sourceforge net 
Sent: Saturday, September 19, 2009 8:34 PM 
Subject: Re: [Snort-users] How to Ignore certain alerts 

You should place the suppressions in the threshold.conf file. Make sure that the file is also uncommented in the 
snort.conf file. (It's at the very bottom of the stock file) 


J 


On Sat, Sep 19, 2009 at 8:13 PM, Daniel Qian < daniel.qian () supracanada com > wrote: 


Should I place the suppression rule in rules/local.rules file? In Base interface, where can I find the sid of the 
alerts that get triggered? 

----- Original Message ----- From: "Joel Esler" < jesler () sourcefire com > 
To: "Daniel Qian" < daniel.qian () supracanada com > 
Cc: < snort-users () lists sourceforge net > 
Sent: Friday, September 18, 2009 6:43 PM 
Subject: Re: [Snort-users] How to Ignore certain alerts 







Check out "suppression" in the Snort manual. 

J 

On Friday, September 18, 2009, Daniel Qian < daniel.qian () supracanada com > wrote: 


I am having nearly 10000 Microsoft SQL server related alerts produced by 
Snort for our /23 network block. But most of our systems are not even 
Microsoft. I am trying to make Snort send these alerts for only a couple 
servers. so I have tried putting 

var SQL_SERVERS [x.x.x.x/32,y.y.y.y/32] 

in snort.conf but it doesnt do anything for me. What is the best approach to 
achieve that result? 

Two links about the alerts copied from Barnyard2: 

http://www.microsoft.com/technet/security/bulletin/MS02-039.mspx 

http://vil.nai.com/vil/content/v_99992.htm 


Thanks, 
Daniel 


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Brian Fagan 
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Phone: (847) 812-9564 
Email: bfagan () teleformix com 

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