Snort mailing list archives
Re: Detecting FTP Hacks
From: Bamm Visscher <bamm () satx rr com>
Date: 27 Mar 2002 07:33:33 -0600
There is a rule in policy.rules for detecting anonymous logins (sid:553). For detecting someone creating a directory named "tagged" you could use: alert tcp $EXTERNAL_NET any -> $HOME_NET 21 (msg:"POLICY FTP Possible warez site"; content:"MKD"; content:"tagged"; nocase; flags:A+;) Make sure to use the nocase option, since we know no WaReZ puppy worth his zero day is going to use something plain like "tagged" when he/she can gain oh-so-many cool points with a directory called "--==[TaGgEd]==--" You cannot create a single rule to detect anonymous access and the creation of a tagged directory since the USER and MKD commands are going to be in different packets. Bammkkkk On Fri, 2002-03-22 at 04:21, Michael Pickert wrote:
Hi, is there any chance to get snort alerting me if someone access our ftp server as user anonymous or when he is creating a dir named, lets say tagged? I tried a bit arround, but it doesn`t work, because snort isn`t able to check ftp traffic. Any ideas? Thanks. Michael Pickert michael.pickert () semikron com
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Current thread:
- Detecting FTP Hacks Michael Pickert (Mar 27)
- Re: Detecting FTP Hacks Bamm Visscher (Mar 27)