wekcome to the forum. i would suggest you do a svan with malwarebytes antimalware as afirst step.

http://www.filehippo.com/download_malwarebytes_anti_malware/

download install and do a scan, don’t forget to remove what it finds, and a sysytem reboot might be necessary.

second upload that file aswMBr flagging to virustotal.com and post the rsult here.

http://www.virustotal.com/

good luck and let us know one the progress.