Parasite Invasion & System Hostage counter measures.
There is, unfortunately, no "1 step, 10 second-fix" everyone would love.
Try malwarebytes to clean up your system:
& SpywareBlaster for system wide, realtime protection:
Tsunami's of money hungry advertising schemes are engulfing the entire internet.
Don't let the battalions of external parasites into your system in the first place by taking an defensive posture to stop these guys on your threshold and keep 'em out. These steps will help, but methods (vectors) constantly change.
INTERNET EXPLORER: Tools> Internet Options> Privacy> Advanced:
here check 'Override automatic....'; 'Allow session cookies'; 'Allow 1st party cookies' & 'Block 3rd Party Cookies'.
FIREFOX: Tools> Options> Privacy: Check 'Accept Cookies from sites'
& Un-Check 'Accept 3rd Party cookies'
Adblock Plus works pretty good too.
>> "NoScript" for Firefox will stop a lot of these adware/spyware & hijackers; and is the single most important thing you can do to prevent most malware <<
Use this feature to block unwanted advertising re-direct:
With NS running, down on the far right corner is a blue 'S' with a red line through it: right click that> tick 'forbid -------' &/or mark as 'untrusted'.
(Ticking all may reduce interactive behavior; enable just enough to get what's necessary to view the page, on a 'temporarily allow' basis)
Rouge malware and server based spyware are becoming indistinguishable & may cause multiple symptoms on your system.
Worst of all, this spy/adware, records your clickstream & builds a profile of you with advertising conglomerate jackals (it's 'off site' tracking)...
Requires "Opt Out" and requires EVERY browser on EVERY machine be done...
Google here: http://www.google.com/privacy_ads.html
Yahoo here: http://info.yahoo.com/relevantads/
NAI garbage here: http://networkadvertising.org/managing/o…
DoubleClick poison here: http://www.doubleclick.com/privacy/dart_…
(List of 64 Yahoo! co-conspirator advertisers they inflict on users are listed here: http://info.yahoo.com/privacy/us/yahoo/t…
When installing ANY new application, check the EULA or TOS for 'Toolbars' and/or other crud they try to slip past ya'.