Author Topic: Avast slows down Ecwid widgets in IE9  (Read 5091 times)

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Offline makfruit

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Avast slows down Ecwid widgets in IE9
« on: September 28, 2012, 09:44:41 AM »
Hello,

We have recently discovered that Avast antivirus significantly slows down the web pages containing Ecwid widgets in IE9. Ecwid provides e-commerce widgets (cloud service) for building online stores.

This probably means that Avast suspects some malicious content transferred from either app.ecwid.com or Amazon (Ecwid uses AWS for hosting stores' data and scripts). If so, it is apparently false positive.

It doesn't completely blocks the loading though. I am not sure, what is going on in the background as Avast doesn't provide any report or log records on the matter. However, with the help of IE9 developer tools I discovered that the processing of some JS files becomes a way longer when Avast is enabled. Maybe, it takes so long for Avast to analyse the code in those files.

Could you please check it? Here is the details.

System: Windows 7 , IE9, Avast 7 Free

Site.
The issue is reproduced on every site where Ecwid widgets are placed. The easiest way to reproduce the issue and make sure no external files affects it is to check it on our demo store:
Simple version (only widgets): http://mdemo.ecwid.com/simple-store
Embedded version: http://www.ecwid.com/demo-frontend.html

How to reproduce.
Open the demo store in IE9 with disabled Avast scanners - it loads quite fast.
Enable Avast scanners.
Open the demo store in IE9 again - it loads way longer (about 10 seconds longer).


We'd like to ask you to address the issue as soon as possible, as it may affect many of our clients (more than 200,000 merchants currently use our service). Thank you in advance.

Kind regards,

Matvey Kuritsyn
Ecwid team

Offline makfruit

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Re: Avast slows down Ecwid widgets in IE9
« Reply #1 on: October 02, 2012, 08:36:39 PM »
Still waiting for response from Avast team. Guys, the issue affects many people. Please give it high priority so it can be fixed shortly. If any further details are needed, please let me know.

Offline makfruit

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Re: Avast slows down Ecwid widgets in IE9
« Reply #2 on: October 16, 2012, 03:25:37 PM »
Anyone?

Offline CharleyO

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Re: Avast slows down Ecwid widgets in IE9
« Reply #3 on: October 17, 2012, 03:57:15 AM »
***

Welcome to the forum, makfruit.

I have asked that someone from the Avast Team to take a look at this problem.
Hopefully, you will get a reply soon.


***
Self-built desktop (8 years old) - AMD64 3200+_Gigabyte GA-K8NS Ultra-939_4 gb RAM_GeForceFX 5800w/256 ram_XP/SP3_Avast 7_MBAM_ZA Free __and__ Toshiba Satellite Laptop_W7-64bit_ 4 gb Ram_Avast 8_MBAM

Offline makfruit

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Re: Avast slows down Ecwid widgets in IE9
« Reply #4 on: October 22, 2012, 10:39:08 AM »
Hello,

Thank you.

Looking forward to comments from them.

Offline makfruit

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Re: Avast slows down Ecwid widgets in IE9
« Reply #5 on: November 12, 2012, 06:46:38 AM »
No replies for two months. Guys, can you please look into it?

Offline Asyn

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Re: Avast slows down Ecwid widgets in IE9
« Reply #6 on: November 12, 2012, 06:53:28 AM »
Does it help to disable the Script-Shield..??
Win 8.1 [x64] - Avast PremSec 21.11.6787.IBC [UI.681] - EEK - Firefox ESR 91.3 [NS/uBO/PB] - TB 91.3.2
Avast-Tools: Secure Browser 96.0 - Cleanup 21.4 - SecureLine 5.14 - Driver Updater 21.4 - CCleaner 5.87
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline makfruit

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Re: Avast slows down Ecwid widgets in IE9
« Reply #7 on: November 14, 2012, 09:21:39 AM »
Does it help to disable the Script-Shield..??

Yes, it does.

Offline makfruit

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Re: Avast slows down Ecwid widgets in IE9
« Reply #8 on: December 03, 2012, 10:10:37 AM »
It's been more than two months already since we discovered this problem, and until now - no response on the matter from Avast team, not even a tiny hint that you're working on it. This problem adversely affects many of Ecwid store users who're using your solution. This is absolutely not acceptable. You're leaving us with only one solution: Though reluctantly, but to recommend our clients to withdraw using Avast.

We do hope you can handle this case at the highest priority.

Offline Asyn

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Re: Avast slows down Ecwid widgets in IE9
« Reply #9 on: December 03, 2012, 10:23:25 AM »
It seems, avast! is just doing its job - scanning the scripts. ;)

But feel free to open a technical support ticket here: http://support.avast.com/index.php?_m=tickets&_a=submit
(Add the link to this topic.)
Win 8.1 [x64] - Avast PremSec 21.11.6787.IBC [UI.681] - EEK - Firefox ESR 91.3 [NS/uBO/PB] - TB 91.3.2
Avast-Tools: Secure Browser 96.0 - Cleanup 21.4 - SecureLine 5.14 - Driver Updater 21.4 - CCleaner 5.87
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline makfruit

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Re: Avast slows down Ecwid widgets in IE9
« Reply #10 on: December 06, 2012, 08:17:13 AM »
Asyn,

Thank you. Created a support ticket.

Offline Asyn

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Re: Avast slows down Ecwid widgets in IE9
« Reply #11 on: December 07, 2012, 04:43:16 AM »
You're welcome.
Win 8.1 [x64] - Avast PremSec 21.11.6787.IBC [UI.681] - EEK - Firefox ESR 91.3 [NS/uBO/PB] - TB 91.3.2
Avast-Tools: Secure Browser 96.0 - Cleanup 21.4 - SecureLine 5.14 - Driver Updater 21.4 - CCleaner 5.87
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0