G'Day aura6aura,
There are a number of anti-virus programs about that will do the job that you are looking for; such as, AVG Free Edition Anti Virus available from
here, is one very good example.
You might also want to try Trend Microsystems "housecall" from
here. This one will do an on-line scan your entire computer as well.
Give them a try and post back with the outcome.