Message in cache.log

["squid squid" <squidusr@xxxxxxxxxxx>]

Hi,

I have a Linux server running Squid 2.5 Stable 12 and I found the various 
following messages in the cache.log file.

2006/07/03 16:53:50| httpSendRequestEntryDone: Likely proxy abuse detected 
'192.168.1.37' -> 'http://application.global.com/mgt/docu_upload.asp'

Pls advise what are these messages about and can they be suppressed from the 
cache.log file.

Thank you.