Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Snort-Users
[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

Re: [Snort-users] Capture Spam mail traffic using snort

from [Jason] Network Security [Permanent Link]
Subject: Re: [Snort-users] Capture Spam mail traffic using snort
Date: Wed, 30 Mar 2005 00:58:43 -0500 
if those systems are in your network you could try a threshold rule


alert tcp !$SMTP_SERVERS any -> any 25 (msg"possible spammer"; content:"rcpt to\:"; nocase; flow:to_server, established; threshold:type both, track by_src, count 10, seconds 60; sid:1000000; rev:1;)

That rule should alert on any system that sends 10 mails in 60 seconds except those defined as SMTP_SERVERS.

lokesh.khanna@accelonafrica.com wrote: 


Hi

I am using snort on Redhat box.

Is it possible to capture IP addresses using snort which are sending Spam mails. If yes, how can I get signature?



Cordially,

Lokesh



-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
_______________________________________________
Snort-users mailing list
Snort-users@lists.sourceforge.net
Go to this URL to change user options or unsubscribe:
https://lists.sourceforge.net/lists/listinfo/snort-users
Snort-users list archive:
http://www.geocrawler.com/redir-sf.php3?list=snort-users

[More with this subject...]




<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  [Snort-users] Capture Spam mail traffic using snort, lokesh.khanna
Next by Date:  RE: [Snort-users] Capture Spam mail traffic using snort, lokesh.khanna
Previous by Thread:  [Snort-users] Capture Spam mail traffic using snort, lokesh.khanna
Next by Thread:  RE: [Snort-users] Capture Spam mail traffic using snort, lokesh.khanna
Indexes:  [Date] [Thread] [Top] [All Lists]