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. |

| Subject: | [Snort-users] Rules to block FT |
|---|---|
| Date: | Wed, 27 Jun 2007 10:18:54 -0500 |
I have a testbed set up and have already alerted and blocked via snortsam for SSH. I am now working on FTP. My rule: alert tcp $HOME_NET any -> $EXTERNAL_NET 21 ( msg:"BLOCKED Potential FTP Brute-Force attempt";flow:from_server,established; content:"530 "; pcre:"/^530\s+(Login|User|Failed)/smi";classtype:unsuccessful-user; threshold: type threshold, track by_dst, count 10, seconds 60; sid:1000002; rev:1; fwsam: src, 5 minutes;) Does this look like it will work? I am not that adept about building rules and am learning. This was from bleeding edge, I think. Dwane
------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/
_______________________________________________ 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
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: [Snort-users] no info on backdoor, Joel Esler |
|---|---|
| Next by Date: | [Snort-users] Snort 2.6.1.5 Killed?, Christopher Rommel |
| Previous by Thread: | [Snort-users] React: block, Pachulski, Keith |
| Next by Thread: | Re: [Snort-users] Rules to block FT, Joel Ebrahimi |
| Indexes: | [Date] [Thread] [Top] [All Lists] |