Re: searching logs for key phrases

Guido van Rooij (Guido.vanRooij@nl.cis.philips.com)
Wed, 27 Nov 1996 14:02:14 +0100 (MET)

at "Nov 26, 96 01:07:53 pm"
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Mike Kienenberger wrote:
> 
> VRFY            /usr/adm/*SYSLOG.mail   check mail logs for VRFY commands
> EXPN            /usr/adm/*SYSLOG.mail   check mail logs for EXPN commands
> " command "     /usr/adm/*SYSLOG.mail   check mail logs for debug/wiz commands
> 
> deni                    /usr/adm/*SYSLOG.auth   check for denied net cmds in S
YS
> LOG
> fail                    /usr/adm/*SYSLOG.auth   check for failed login  
> attempts (passwords
>                                                                         at  
> the login prompt; brute force attacks, etc)
> 
> Does anyone have other things you look for on a regular basis?

It is in general a bad idea to scan for interesting things. What should
be done in stead is filter out the non-interesting ones.

-Guido