Avast WEBforum

Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: browerowy on May 11, 2020, 09:58:07 AM

Title: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 11, 2020, 09:58:07 AM

I downloaded installer in incognito mode and it has different hash but also smaller size than installer downloaded normally under firefox? Why is that?

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 11, 2020, 10:42:29 AM

Normal file size 228kb

File from Incognito mode size 225kb

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: Asyn on May 11, 2020, 10:43:19 AM

Did you use the same download location/link..?

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 11, 2020, 10:46:18 AM

Yes, download from Avast website in european (english version): https://www.avast.com/en-eu/download-thank-you.php?product=FAV-ONLINE&locale=en-eu

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: Asyn on May 11, 2020, 10:48:36 AM

Strange, wait for one of the devs and/or submit a ticket: https://support.avast.com/contact (paid versions)

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 11, 2020, 10:49:35 AM

When you using direct link, try download twice to find out change of file size in incognito mode. When downloading by googling avast site, size should be different from a first download.

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: Asyn on May 11, 2020, 10:51:21 AM

You can try the full installer: https://files.avast.com/iavs9x/avast_free_antivirus_setup_offline.exe

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 11, 2020, 10:56:13 AM

I installed from this incognito mode installer. Virustotal thinks it is ok, file is signed etc. but I'm just curious why there is a diference in file size.

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: Asyn on May 11, 2020, 10:57:08 AM

Quote from: browerowy on May 11, 2020, 10:56:13 AM

I installed from this incognito mode installer. Virustotal thinks it is ok, file is signed etc. but I'm just curious why there is a diference in file size.

Beats me, sorry.

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 11, 2020, 11:48:54 AM

I just hope that that installer is legit and safe. But why it shouldn't be? Does the devs visit forum regular?

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 11, 2020, 11:54:58 AM

Also online installer downloaded from edge have 225kb size, but yet another hash...

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: Asyn on May 11, 2020, 12:57:07 PM

I reported it, let's see...

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 11, 2020, 01:05:25 PM

THX

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: Asyn on May 11, 2020, 01:09:30 PM

You're welcome.

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 11, 2020, 02:28:21 PM

This smaller files are downloaded from https://bits.avcdn.net/productfamily_ANTIVIRUS/insttype_FREE/platform_WIN/installertype_ONLINE/build_RELEASE/cookie_mmm_ava_003_999_b4e_m when bigger heve url without this cookie.

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: r@vast on May 12, 2020, 09:49:17 AM

Hi,

This occurs in "Incognito mode" irrespective of the browser used and only on subsequent downloads not the first.

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: browerowy on May 13, 2020, 11:08:36 AM

But are all of this installers legit and safe? I saw that analogical situation is with offline installers.

Title: Re: Why instalator downloaded in incognito mode is a diferent file?
Post by: igor on May 13, 2020, 12:17:20 PM

Check the digital signature of the installers. If there's a valid digital signature by Avast (which most likely means "AVAST Software s.r.o." now - though that may change to a different branch), it's OK.