need help tracking process down ..

I've noticed a 0 byte file called '.ugothacked' inside /tmp owned by user (let's call him userx)

It's a 0 byte file so i wasn't immediately concerned. I simply deleted it thinking that it may have been just some lame (failed) php/cgi hack attempt.

However the same 0 byte file reappeared a couple times more after I deleted it manually.

I've gone through the http logs for this user and haven't found anything suspicious although i only skimped through it.

I grepped through userx's entire homedir search for the string 'hacked' in all his files and nothing came up ...

So I am getting a little tired of playing this cat and mouse with whoever it is and was wondering if the more experienced folks here would have any tips as to how to trap/catch this guy in the act ie. at least find out what sort of process is writing that file and who/where/from where it was started.

It's a RHEL 3.4 Cpanel box (latest kernel etc).

 

 

 

 

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