Redirects via "jupk.com"
For info only now.
I have just recovered from a couple of days where by calls to such innocent places as GoogleUK finished up at some porn site or other unwanted locales.
It turned out that this 'Bug' had altered the DNS setting in Network Connections
The cure was quite simple.
'Settings/Control panel/Network Connections/'Right click' Internet conection/ Properties/Networking/ Double click TCP/IP and ensure that "Obtain DNS Server Address Automatically" IS SELECTED
Hope his make sense to anyone who may need it.