How do you know the IP addresses? It is extremely difficult to find the actual source of malware because by the time it gets active, the traces of its installation are normally gone.
If you're just looking at IP addresses recorded by your firewall software, just ignore them, any computer on the internet is constantly bombarded with "attack" IP packets that are not any more than simple knocks at the door. The firewall has already prevented connections from these IP addresses, but it will not report the real source of a successful attack because it can't - otherwise it would have prevented the attack.

Malware on windows computers is mostly installed either by yourself (when you installed something downloaded from the internet) or by your browser when an attacker exploits a browser security hole.

Onkel Paul