[ossec-list] Re: ossec-rootcheck found hidden ports -- how can I verify if this is a false positive or not?

2007-08-27 Thread Peter M. Abraham
Greetings: I replaced the netstat on the server (actually updated net-tools which was out dated), rpm -V net-tools-1.60-37.EL4.9 Provides no output for which I understand means the package verified ok. Yet, ossec-rootcheck still shows hidden ports as listed in my first post. strings

[ossec-list] Re: ossec-rootcheck found hidden ports -- how can I verify if this is a false positive or not?

2007-08-27 Thread Jeff Schroeder
On Aug 27, 11:11 am, Peter M. Abraham [EMAIL PROTECTED] wrote: Greetings: I replaced the netstat on the server (actually updated net-tools which was out dated), rpm -V net-tools-1.60-37.EL4.9 Provides no output for which I understand means the package verified ok. You realize that even

[ossec-list] Re: Rootkit check, check?

2007-08-27 Thread Daniel Cid
Hi Andrew, There is a very subtle acknowledgement that the rootcheck scan ran that is stored on the server side. If you go to /var/ossec/queue/rootcheck you will see one entry for each agent (plus the one for the server, just named rootcheck). If you look at any of the files in there, you will

[ossec-list] Re: ossec-rootcheck found hidden ports -- how can I verify if this is a false positive or not?

2007-08-27 Thread David Williams
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 In my previous life, we had several busy servers and they would often alert like this because of temporary port usage. I believed the alert was because OSSEC tried to bind to a port, could not then ran netstat and did not see the port in

[ossec-list] Re: ossec-rootcheck found hidden ports -- how can I verify if this is a false positive or not?

2007-08-27 Thread Daniel Cid
Hi David, In addition to what you mentioned, if you are using Linux, it can also be caused by a bug in an application that is binding to a TCP port, but not listening on it. For some weird reason, Linux does not report these ports on netstat... More info here: http://www.ossec.net/dcid/?p=87

[ossec-list] Re: ossec-execd invoked oom-killer

2007-08-27 Thread Daniel Cid
Hi Daniel, Are you sure ossec did this? First, it doesn't run on kernel mode, so even if it crashed, it would not crash the whole system. It also doesn't use a lot of memory, so I can't see it being responsible for that... Can you show us more information? If you are still getting alerts from