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AVG EMAIL SHIELD FOR MAC FOR MAC OS
AVG EMAIL SHIELD FOR MAC VERIFICATION

AVG EMAIL SHIELD FOR MAC VERIFICATION

EV certificates are backed by a much more thorough identity verification process, not to mention that they’re considerably more expensive than a normal certificate. This is what a real certificate is supposed to look like:ĭid you notice the inscription “Microsoft Corporation ” next to the padlock symbol that indicates you’re on an encrypted connection? That shows Microsoft is using an EV (Extended Validation) certificate for this particular site. Now compare the identity information for the “clean” connection with avast! web shield disabled to the information that was showing up in my first example showing Google Maps. Have a look at the “Issued by:” entry for the certificate information and also the encryption information in the URL box: Web Shield AlertĪs I was preparing the images for the blog post, I noticed the same behaviour on. I case you’re not that familiar with what the connection information is supposed to show you, you can be pretty sure that Google doesn’t have their identity verified by avast!. A quick check on a Windows machine in my household confirmed that this was also true for Windows:

AVG EMAIL SHIELD FOR MAC FOR MAC OS

I read about this on a blog post that was linked from Hacker News where someone claimed that Avast’s virus scanner for Mac OS inserts itself into SSL-encrypted connections using a self-signed certificate.

Deactivate or pause Web Shield, File Shield, Mail Shield or Behavior Shield on Windows 10/8.1/7 or Mac OS X.

Just checked and these are running, but the windows security centre still says its turned off left clicked the icon and I have 2 of everything (instant messaging, internet mail, network shield, outlook/exchange, psp shield, standard shield and web shield) 1 lot is coloured the other lot is grey if I run the mouse over the avast icon on my task.ĭisable (turn off, stop) Avast antivirus 2018 completely or temporarily in 3 simple steps.

Now, if it is the Web Shield doing this as you browse, just understand the concept of 'safe web site' is dated, legit sites can and do regularly get hacked, malicious scripts inserted, especially.

I would recommend you turn off web shield’s https scanning or choose another virus scanner.

Tl dr – avast’s web shield functionality appears to insert itself into SSL connections using a self signed trusted root certificate and a simple kind of man-in-the middle “attack” on SSL.