Hi. The easiest and sure way to overcome this misfortune has been to flash in a new firmware. No anti-virus has been known to have the ability to track down and remove the malware behind those activities. Please confirm if you have an AG Chrome Vibe device by replying below.
Signature: I (as a co-founder of this site) have offered online support since 2014 but have now (as of Oct 2016) given up my shareholding and am now with http://www.saroms.co.za