My elderly parents are receiving chrome notifications from a strange URL on their iMac: (https://s1.snc.com.ru:443)

Example Messages

• Pending Payment: Paypal Has Sent You $65,900

• Clean your mac. Do not ignore this message.

Screenshot of Notifications

I've remotely connected and scanned with Malwarebytes & Avast, but have found no threats.

I didn't see any issues when checking the URL on VirusTotal either. Visiting the URL renders a progress bar made with Bootstrap/Javascript and asks for permission to give notifications. Of course, I click no/block. There's some interesting javascript in the sourcecode that has a couple other URLS.

I've just blocked the notifications for now, but I'm really curious; what is this? Did I screw up by visiting the URL?

  • You may want to check the installed extensions/add-ons in the browser. Also maybe check that they don't have an alternate DNS setting in the browser. – Daisetsu Mar 7 '19 at 6:07

The site asks permission to send Web Push Notifications. That's not technically a malware and won't get detected as such. The site is just using this permission in a malicious way by sending these spam messages. That's pretty common.

You must teach your parents some basic rules on the Internet: Don't click yes on everything. By default, select no if you don't understand the question. You could also tweak their browser to help them with this task:

  • Disabled web push notifications altogether by selecting Do not allow any site to show notifications from the Content Settings.
  • You could also disable location by selecting Do not allow any site to track your physical location.
  • Revise all Content Settings and disable everything your parents won't actually need.
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  • Thank you so much for your input and the articles. Very helpful! – Jaguilar Mar 7 '19 at 15:58

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