I just checked this (My Hosts file)and the Spyware.possible_website_hijack detections
you are experiencing is caused by Spybot.
Spybot appears to be detecting spywareinfo.com as malicious therefore it
is utilising the host file to prevent access to this site, however on
Spyware Doctor's side this site contains no malicious entries therefore
it is removing host file entries that are trying block access to
legitimate sites, in this case spywareinfo.com.
I would suggest you contact Spybot for further information and to
prevent further spywareinfo.com detections add this detection into
Spyware Doctor's Global Action list.
1. Open Spyware Doctor and select the 'Settings' button >> 'History'
2. Locate the spywareinfo.com detection, you should be able to see
detailed description of the infection at the bottom of the screen.
3. Once you have located the false positive detection, right click on
the item and select 'Add to Global Action list'
The file is now added and will be ignored by all IntelliGuard Tools and
Spyware Doctor scans.