We need a anti-virus expert to work on our website

We need a Virus expert who are familiar with [login to view URL] task is given as follows: 1. audit all files and remove any malicious content from our CRE Loaded website 2. You need to find an outdated version of osCommerce or any other software to upgrade this to the latest version. 3. give any possible security patches to protect from our website against hackers to attack. Payment will be given after you have completed this project successfully.