April 12 Windows Updates causing issues with ESET

[MarcFL 24]

It's been reported that the April 12 Windows updates are causing issues with browsers with Eset installed:
See: https://www.world-today-news.com/windows-update-is-preventing-some-browsers-from-opening/
Also See: https://www.askwoody.com/
 

[MarcFL 24]

More reports:
https://www.ghacks.net/2022/04/14/browsers-are-crashing-with-error-code-0xc0000022-after-installing-the-april-2022-windows-updates/
 

[itman 1,497]

The issue was resolved yesterday morning: https://forum.eset.com/topic/32063-ff-edge-bpp-cannot-be-opened-error-code-0x847695d2/

It is a "poster child" example though that when B&PP secure all browsers setting is enabled and something get's borked in B&PP, your browser also gets also borked.

[MarcFL 24]

Thanks itman.  Didn't know the acronym B&PP (had to look it up).  "Banking & Payment Protection" - which doesn't exist in NOD32.

Edited April 14, 2022 by MarcFL

[Marcos 4,553]

The issue was caused by a coincidence when the trust to certain Microsoft files signed with a specific MS certificate which was used on a malicious file was lost and the fact that certain recently updated dlls had not become popular enough yet. These dlls are now trusted which resolved the issue.

Users who had the Secure all browsers (SAB) option enabled could not start the browser since loading of the untrusted dll was blocked. Those with SAB disabled could use the browser and only redirection to a secured browser was failing. Users with products without Banking and payment protection (ie. ESET NOD32 Antivirus, ESET Endpoint Antivirus) were not affected.