Hello JamieJelly
The log you posted has the following ...
Adware from 180Solutions, Purityscan/Clickspring and Adlogix. It also has spyware from Shopnav.
Furthermore the java is
long out of date.
What firewall is operating on this computer?
Suggest your brother goes here .....
http://www.help2go.com/Tutorials/Pro...Hijackers.html
....and runs through all the steps carefully. Post a fresh HJT log after that WITH an update on how the computer is operating now. There may be more to do.
OJ