Information Technology Services
Information Technology Services

Home users can apply a simple test for the presence of a Conficker/Downadup infection on their home computers. 

The presence of a Conficker/Downadup infection may be detected if a user is unable to surf to their security solution website or if they are unable to connect to the websites, by downloading detection/removal tools available free from those sites:

If a user is unable to reach any of these websites, it may indicate a Conficker/Downadup infection. The most recent variant of Conficker/Downadup interferes with queries for these sites, preventing a user from visiting them.  If a Conficker/Downadup infection is suspected, the system or computer should be removed from the network or unplugged from the Internet - in the case for home users.

from: US-CERT, United States Computer Emergency Readiness Team