Mac makes beeps and will not allow entry keyboard

iMac with OS Yosemite, 4 GB.  Was working fine when I stopped yesterday, but on starting today I hear a continuous beep (maybe not the best description) or his intermittent whenever I try to enter keystrokes in a browser.  In addition, a series of double hyphens (see table) runs in the search window, as if a key is "stuck" I took off my keyboard, but it still happens.

Indeed, my imac has been 'hijacked' I can't do anything.  I checked e-mail, but when I tried to send a msg, the automatic string of dashes fills the screen until I close the e-mail.

I rebooted and also tried to start in safe mode, but the problem persists then I can't run any utility to try to resolve the problem.  I look at my directory and noticed that a file with a name something like zebrouss (?) was there, which, if I remember was a type of malware... and wonder if this could be a source of my problem.  Help!

Try this

https://malwaretips.com/blogs/search-zebrouss-com-removal/

Tags: Mac OS & System Software

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