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-Signatures
[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

Re: [Snort-sigs] Possible improvements to pop3 rules.

from [Jeff Kell] Network Security [Permanent Link]
Subject: Re: [Snort-sigs] Possible improvements to pop3 rules.
Date: Wed, 04 May 2005 09:52:16 -0400 
Frank Knobbe wrote:

On Wed, 2005-05-04 at 08:04 -0400, Michael Stone wrote:

On Wed, May 04, 2005 at 02:56:59PM +1000, Erik de Castro Lopo wrote:


Here we have a search of the string "USER" followed by the given
PCRE search. However, the PCRE is anchored to the start of the
packet. 


Hmm. That's bogus. There's no reason that the USER has to be at the
start of the packet.



Heh... actually, I think I have to agree. The USER has to be at the
beginning on the line, but that doesn't have to be the beginning of the
_stream_. 


OK, so then it's anchored by ^ or \r\n then, with a \s afterwards.

Jeff



-------------------------------------------------------
This SF.Net email is sponsored by: NEC IT Guy Games.
Get your fingers limbered up and give it your best shot. 4 great events, 4
opportunities to win big! Highest score wins.NEC IT Guy Games. Play to
win an NEC 61 plasma display. Visit http://www.necitguy.com/?r=20
_______________________________________________
Snort-sigs mailing list
Snort-sigs@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/snort-sigs
[More with this subject...]




<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  Re: [Snort-sigs] Possible improvements to pop3 rules., Frank Knobbe
Next by Date:  Re: [Snort-sigs] Possible improvements to pop3 rules., Brian
Previous by Thread:  Re: [Snort-sigs] Possible improvements to pop3 rules., Frank Knobbe
Next by Thread:  Re: [Snort-sigs] Possible improvements to pop3 rules., Brian
Indexes:  [Date] [Thread] [Top] [All Lists]