I seem to have picked up something nasty, despite having your Internet Security and MalwareBytes. This search engine (http:// www .istart123. com/) comes up in both Chrome and IE11. Avast seems to block it on Waterfox though. I’ve run an Avast boot scan and MalwareBytes is set to scan for rootkits, but neither have found anything.
I’m not up on the techno computer talk, so any instructions and/or information you can give will have to be in simple terms, please.
since you have run Malwarebytes you only have to run frst from that guide eddy gave you
scroll down to Farbar Recovery Scan Tool and run as instructed … attach the two diagnostic logs
Run FRST and press Fix
On completion a log will be generated please post that
THEN
Please download AdwCleaner by Xplode onto your desktop.
[*]Close all open programs and internet browsers.
[*]Double click on AdwCleaner.exe to run the tool.
[*]Click on Scan.
[*]After the scan is complete click on “Clean”
[*]Confirm each time with Ok.
[*]Your computer will be rebooted automatically. A text file will open after the restart.
[*]Please post the content of that logfile with your next answer.
[*]You can find the logfile at C:\AdwCleaner[S1].txt as well.
Click on the link above to be taken to Unchecky.com
click the very large Download button.
click Save
Click Open folder
Right click on the Unchecky_setup and choose to Run as Administrator
Once open click the Install button.
Then click on Finish
Unchecky is now installed and will help you keep unwanted check boxes unchecked, this is a fire and forget programme
It is critical to have both a firewall and anti virus to protect your system and to keep them updated.
To learn more about how to protect yourself while on the internet read this little guide Best security practices Keep safe