- Scan all files Since Conficker uses random extension names to avoid detection, Windows users should make sure their security software is set to scan all files, rather than checking on specific extensions.
- Update Windows The alarmingly high number of Conficker infections led Microsoft last Tuesday to enable its anti-malware utility, Microsoft Software Removal Tool (MSRT), to detect the worm. So it's important that Windows users, if they haven't already, download the latest Microsoft security patch that went out earlier this week.
- Use a blocklist This is less relevant for home users, but network administrators can also use a Conficker blocklist provided by F-Secure to try and stop the worm's attempts to connect to websites.
- Disable Autoron You can disable Autorun so that a PC won't suffer automatic attack from an infected USB drive or other removable media when it's connected. The Internet Storm Center links to one method for doing so, but the instructions involve changing the Windows Registry and should only be attempted by adminstrators or tech experts.