Author Topic: Avast Webshield blocks streams and some internet videos  (Read 33293 times)

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Offline Bugses

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Avast Webshield blocks streams and some internet videos
« on: October 29, 2013, 02:35:43 AM »
Hi there.
First of all, let me say that I'm normally a very happy user of the free version of Avast. Lately though, I've been noticing some strange things.
I like to watch streams on twitch.tv, and I often watch videos on the internet. The webshield though, seems to be blocking this, well some of it. I cant watch Twitch.tv without it making it reloading the stream constantly. I can without problems watch YouTube videoes and stuff like that, but I cant watch the videoes on my local news site.

Everything works perfectly, as soon as I disable the Webshield. I'm using Windows 8.1 and Google Chrome.
Can you help me?

Thanks.
« Last Edit: October 29, 2013, 02:38:26 AM by Bugses »

Offline enduser9999

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Re: Avast Webshield blocks streams and some internet videos
« Reply #1 on: October 29, 2013, 02:45:52 AM »
[suspicious].[/suspicious]
« Last Edit: October 29, 2013, 04:39:19 PM by enduser9999 »

Offline mchain

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Re: Avast Webshield blocks streams and some internet videos
« Reply #2 on: October 29, 2013, 03:01:43 AM »
It's possible these blocks are legitimate and are now detected because you are now running Avast! 2014, whereas version 8.0 was not able to detect or see these threats. 

Maybe something one might think about a bit before disabling WebShield?

Links to these sites are welcome, and I will investigate each of them for possible site malware for you.

If you post a link, please make them as hxxp:// and not http:// so they are not a live connective link for unaware users to prevent any possible infection to them.  Doing it this way will prevent any possible harm coming to other users here.

Screenshots of the warning pop-ups will help also.

Windows 10 Home 64-bit 20H2 Avast Premier Security version 21.3.2459 (build 21.3.6164.652) UI version 1.0.612.

Offline DavidR

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Re: Avast Webshield blocks streams and some internet videos
« Reply #3 on: October 29, 2013, 03:46:49 AM »
Many streaming sources though using http ports, don't strictly use HTTP protocol, this can mess up the web shield as it is expecting HTTP protocol.

Is there a particular area of twitch.tv that you have problems with ?
I just checked access and was watching the 24hr Battlefield Stream for a while without any issue.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 21.9.2494 (build 21.9.6698.703) UI 1.0.672/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

Offline enduser9999

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Re: Avast Webshield blocks streams and some internet videos
« Reply #4 on: October 29, 2013, 10:54:57 AM »
.
« Last Edit: October 29, 2013, 04:38:10 PM by enduser9999 »

Offline Bugses

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Re: Avast Webshield blocks streams and some internet videos
« Reply #5 on: October 29, 2013, 12:15:23 PM »
It's possible these blocks are legitimate and are now detected because you are now running Avast! 2014, whereas version 8.0 was not able to detect or see these threats. 

Maybe something one might think about a bit before disabling WebShield?

Links to these sites are welcome, and I will investigate each of them for possible site malware for you.

If you post a link, please make them as hxxp:// and not http:// so they are not a live connective link for unaware users to prevent any possible infection to them.  Doing it this way will prevent any possible harm coming to other users here.

Screenshots of the warning pop-ups will help also.

hxxp://www.twitch.tv and hxxp://www.ekstrabladet.dk

I do NOT get any warning pop-ups. On ekstrabladet.dk - it just shows a black screen where the video should be. On Twitch.tv - it just keeps reloading the stream. Shows the stream for 3 seconds or so, and reloads again. No warnings whatsoever.

Offline Bugses

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Re: Avast Webshield blocks streams and some internet videos
« Reply #6 on: October 29, 2013, 12:17:47 PM »
Many streaming sources though using http ports, don't strictly use HTTP protocol, this can mess up the web shield as it is expecting HTTP protocol.

Is there a particular area of twitch.tv that you have problems with ?
I just checked access and was watching the 24hr Battlefield Stream for a while without any issue.

Its every single stream on Twitch.tv
If it helps anyone, then I can record a video of what happens?

Offline Eddy

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Re: Avast Webshield blocks streams and some internet videos
« Reply #7 on: October 29, 2013, 12:30:03 PM »
I just tried 3 videos on twitch.tv and was able to watch them for over 10 minutes each without a problem and webshield on.

Offline Bugses

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Re: Avast Webshield blocks streams and some internet videos
« Reply #8 on: October 29, 2013, 12:40:03 PM »
I just tried 3 videos on twitch.tv and was able to watch them for over 10 minutes each without a problem and webshield on.

I dont know what to  tell you.. I just know that, as soon as I disable the Webshield, it starts working.

Offline DavidR

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Re: Avast Webshield blocks streams and some internet videos
« Reply #9 on: October 29, 2013, 03:52:28 PM »
Many streaming sources though using http ports, don't strictly use HTTP protocol, this can mess up the web shield as it is expecting HTTP protocol.

Is there a particular area of twitch.tv that you have problems with ?
I just checked access and was watching the 24hr Battlefield Stream for a while without any issue.

Its every single stream on Twitch.tv
If it helps anyone, then I can record a video of what happens?

Whilst this might seem strange as it doesn't relate to the web shield, I just wonder if it could have an effect.
With the web shield enabled - Try disabling the 'avast! online security' plugin in Chrome and see if that makes a difference.
Sorry I can't tell you where to do this in Chrome as I don't use it.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 21.9.2494 (build 21.9.6698.703) UI 1.0.672/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

Offline Para-Noid

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Re: Avast Webshield blocks streams and some internet videos
« Reply #10 on: October 29, 2013, 04:07:52 PM »
Chrome...click on the three bars>click "tools">click "extensions"  :)
Dell Inspiron, Win10x64--HP Envy Win10x64--Both systems Avast Free v17.9.2322, Comodo Firewall v8.2 w/D+, MalwareBytes v3.0, OpenDNS, Super Anti-Spyware, Spyware Blaster, MCShield, Unchecky, Vivaldi Browser and, various browser security tools.

"Look before you leap!" Use online scanners before you click on any link.

Offline DavidR

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Re: Avast Webshield blocks streams and some internet videos
« Reply #11 on: October 29, 2013, 04:14:20 PM »
Thanks Para-Noid.

Whilst you are here, you could try connecting to the twitch.tv site and see if the streams are working for you with Chrome, Web Shield and 'avast! online security' enabled.  I suspect that there may be more to this than the Chrome, Web Shield and 'avast! online security' combo.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 21.9.2494 (build 21.9.6698.703) UI 1.0.672/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

Offline Bugses

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Re: Avast Webshield blocks streams and some internet videos
« Reply #12 on: October 29, 2013, 09:07:08 PM »
That dosent help unfortunately. I've tried that already. And at the moment, its not even installed, the Chrome plugin.

Offline mchain

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Re: Avast Webshield blocks streams and some internet videos
« Reply #13 on: October 29, 2013, 10:14:39 PM »
Both wXw.twitch and wXw.ekstrabladet come out as clean at the moment.

http://www.urlvoid.com/scan/ekstrabladet.dk/
http://zulu.zscaler.com/submission/show/e676cb2da28b61bcb82a91b9cc5fc50f-1383079516
http://urlquery.net/report.php?id=7286497
http://www.mywot.com/en/scorecard/www.ekstrabladet.dk
http://www.urlvoid.com/scan/twitch.tv/
http://zulu.zscaler.com/submission/show/f8d4d357b5ac067ad05de7d43e78bfe6-1383080029
http://urlquery.net/report.php?id=7286730
http://www.mywot.com/en/scorecard/www.twitch.tv

Possible iffy add-ons or rogue toolbars present in your browsers?  Browsers clean?  Neither DavidR or Eddy are reporting issues.

Only thing showing is a redirection for ekstrabladet in zulu and a minor elevation in risk in zulu Netblock size.  Otherwise everything looks normal from here.
« Last Edit: October 29, 2013, 10:19:22 PM by mchain »
Windows 10 Home 64-bit 20H2 Avast Premier Security version 21.3.2459 (build 21.3.6164.652) UI version 1.0.612.

Offline Para-Noid

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Re: Avast Webshield blocks streams and some internet videos
« Reply #14 on: October 29, 2013, 10:27:24 PM »
Thanks Para-Noid.

Whilst you are here, you could try connecting to the twitch.tv site and see if the streams are working for you with Chrome, Web Shield and 'avast! online security' enabled.  I suspect that there may be more to this than the Chrome, Web Shield and 'avast! online security' combo.
twitch.tv works great here! Chrome w/AOS enabled and Firefox w/AOS enabled.
As far as the web shield goes I never disable it. All shields up and always running.

Sorry it took so long to get back to this thread.
Dell Inspiron, Win10x64--HP Envy Win10x64--Both systems Avast Free v17.9.2322, Comodo Firewall v8.2 w/D+, MalwareBytes v3.0, OpenDNS, Super Anti-Spyware, Spyware Blaster, MCShield, Unchecky, Vivaldi Browser and, various browser security tools.

"Look before you leap!" Use online scanners before you click on any link.