Author Topic: Avast is blocking my website  (Read 427 times)

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Offline renan.silva

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Avast is blocking my website
« on: August 12, 2020, 03:58:46 PM »
I don't know if this is the proper place to talk about it. If it's not, please help me finding the proper place.

I have a website which is used by all my clients hxxps:// This website uses ADFS authentication, which is redirected to hxxps:// and then back to initial URL.

Many clients are reporting AVAST is blocking the access to hxxps://

I've tried checking blacklists and it seems not to be in one of them

It's a microsoft service, wich I don't have anything to do on.

What can I do?

Offline Asyn

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Offline renan.silva

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Re: Avast is blocking my website
« Reply #2 on: August 13, 2020, 01:28:26 PM »
You can report a suspected FP (File/Website) here:

I did it! Waiting for a response.

Offline polonus

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Re: Avast is blocking my website
« Reply #3 on: August 13, 2020, 09:49:39 PM »
Not blocked by avast's but the page cannot be displayed because an internal server error occurred.
Take this up with the hoster at Microsoft Brazil for website at

Site has kicked up errors ->
Microsoft HTTPAPI httpdVersion: 2.0
HTTP/1.1 404 Not Found
Content-Type: text/html; charset=us-ascii
Server: Microsoft-HTTPAPI/2.0
Date: Sun, 09 Aug 2020 08:39:51 GMT
Connection: close
Content-Length: 315

See scanresults and recommendations here:
No vulnerable libraries detected:!/scan/5bbd89ae2769ace0c7522565a419f5e032db793973a291933ca7b8496656dbe4

Wait for a final verdict by an avast team member, but as stated the error is at the webserver...

polonus (3rd party cold recon website security analyst and website error-hunter)
Cybersecurity is more of an attitude than anything else. Avast Evangelists.

Use NoScript, a limited user account and a virtual machine and be safe(r)!