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Fake Firefox Update opened while on Yahoo.com

Posted

First time was Monday Morning, I had just opened Yahoo.com when screen was taken over by an "Urgent Firefox Update" screen. At the bottom right of the screen was a small rectangular box stating "opening firefox-patch.js". I hit AltF4 and closed both. Anti virus (Kaspersky) didn't detect the pop up screen. It happened again this morning on Yahoo.com, this time with a different URL. Have attached screen prints. Malwarebytes and Kaspersky didn't find anything on scan completion.

First time was Monday Morning, I had just opened Yahoo.com when screen was taken over by an "Urgent Firefox Update" screen. At the bottom right of the screen was a small rectangular box stating "opening firefox-patch.js". I hit AltF4 and closed both. Anti virus (Kaspersky) didn't detect the pop up screen. It happened again this morning on Yahoo.com, this time with a different URL. Have attached screen prints. Malwarebytes and Kaspersky didn't find anything on scan completion.
Attached screenshots

Chosen solution

hi, this is a scam tactic that is trying to trick you into installing malware, so don't download or execute this kind of stuff just because of a popup or redirect on a website! updates are handled automatically by firefox so you don't have to download anything for that (and you can always initiate a manual check for updates in the firefox menu ≡ > help ? > about firefox).

we suspect this is coming form "malvertising" (=ads placed on legitimate websites that redirect you to this fraudulent message), so using an adblocking addon like https://addons.mozilla.org/firefox/addon/ublock-origin/ would also help with that.

I found a fake Firefox update

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Additional System Details

Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape "9.5.5"
  • Citrix Online App Detector Plugin
  • GEPlugin
  • Google Update
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Office Authorization plug-in for NPAPI browsers
  • Shockwave Flash 24.0 r0
  • 5.1.50709.0
  • VLC media player Web Plugin
  • NPWLPG

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; rv:50.0) Gecko/20100101 Firefox/50.0

More Information

philipp
  • Top 25 Contributor
  • Moderator
4538 solutions 20321 answers

Chosen Solution

hi, this is a scam tactic that is trying to trick you into installing malware, so don't download or execute this kind of stuff just because of a popup or redirect on a website! updates are handled automatically by firefox so you don't have to download anything for that (and you can always initiate a manual check for updates in the firefox menu ≡ > help ? > about firefox).

we suspect this is coming form "malvertising" (=ads placed on legitimate websites that redirect you to this fraudulent message), so using an adblocking addon like https://addons.mozilla.org/firefox/addon/ublock-origin/ would also help with that.

I found a fake Firefox update

hi, this is a scam tactic that is trying to trick you into installing malware, so don't download or execute this kind of stuff just because of a popup or redirect on a website! updates are handled automatically by firefox so you don't have to download anything for that (and you can always initiate a manual check for updates in the firefox menu ≡ > help ? > about firefox). we suspect this is coming form "malvertising" (=ads placed on legitimate websites that redirect you to this fraudulent message), so using an adblocking addon like https://addons.mozilla.org/firefox/addon/ublock-origin/ would also help with that. [[I found a fake Firefox update]]

Helpful Reply

Thanks for your reply. I didn't click on it as I have never seen an update come through like that and fortunately noticed the URL's were not Mozilla's. I find it disturbing that Yahoo does not control malware on their site. I merely had the browser open and had not clicked on any of the articles. The browser window opened on its own.

Thanks for your reply. I didn't click on it as I have never seen an update come through like that and fortunately noticed the URL's were not Mozilla's. I find it disturbing that Yahoo does not control malware on their site. I merely had the browser open and had not clicked on any of the articles. The browser window opened on its own.
philipp
  • Top 25 Contributor
  • Moderator
4538 solutions 20321 answers

Helpful Reply

unfortunately we had reports from users who said it was happening on other major sites as well. these advertising networks are totally out of control :-/

unfortunately we had reports from users who said it was happening on other major sites as well. these advertising networks are totally out of control :-/