I am new in my company and since a week I discovered that the company linux server contains a virus..tying to figure out what is the cause of the virus infection I noticed that the server is not up to date since a long time!! and I think but not sure this is the cause why the virus hacked the system.
Via terminal the
lsb_release -a command displays the following:
No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 5.0.10 (lenny) Release: 5.0.10 Codename: lenny
I know, this too old (lenny!!) and I have to upgrade the system to Debian 7.0 Wheezy.The questions are:
- What risks could happen after the update procedure?
- Have to reinstall all the system files from scratch?
- Have I after that to update php and mysql versions too to be compatible with the new Debian version?
I am hesitating since the versions is too old and my knowledge in linux server is very limited.