Getting an alert when loading up Google Chrome.

http://postimg.org/image/nnf1rjsjv/ any idea what’s causing this?

This url is possibly the cause of the alert, see: https://www.virustotal.com/en/domain/sb.adtidy.org/information/
(This domain is highly LIKELY BANNED from Google Adsense program! )


        <meta http-equiv="refresh" content="5;
URL='http://adguard.com/'"> 
  Array
(
    [0] => Array
        (
            [host] => sb.adtidy.org
            [class] => IN
            [ttl] => 299
            [type] => A
            [ip] => 185.22.60.101
        )

)

It is unscrupulous advert site redirection, attach the demanded log files (see Eddy’s reply) and then wait for a qualified
removal expert to relieve your computer of this malcode.

kind regards,

polonus

So it’s nothing to be worried about then?

It is the reddit redirect again
https://forum.avast.com/index.php?topic=53253.0