Author Topic: question about avgfree 8.5 and avast home  (Read 10540 times)

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mevcit

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Re: question about avgfree 8.5 and avast home
« Reply #15 on: March 31, 2009, 04:09:27 AM »
I clicked on the eicar test files. Now i scanned a few of them in the chest, avast gave alerts. So they are real objects then.
http://www.eicar.org/download/eicarcom2.zip
http://www.eicar.org/download/eicar.com.txt

As you stated they are not actual html pages. But why does this difference occur? Why does web shield quarantine the objects only when silent mode is enabled?

Let's think about surfing a web site, not a direct download process. Do you have any certain idea about the rest of the content of a web site in which avast catch a malware? I asked previously this question, and i think it is as what i said.

theinvulnerable

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Re: question about avgfree 8.5 and avast home
« Reply #16 on: March 31, 2009, 11:25:31 AM »
So u mean guyz i should replace avgfree 8.5 by avast home. And not installed two AV at the same time even if the one is just a scanner and the other one is the resident running on startup?

ilker

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Re: question about avgfree 8.5 and avast home
« Reply #17 on: March 31, 2009, 11:47:47 AM »
So u mean guyz i should replace avgfree 8.5 by avast home. And not installed two AV at the same time even if the one is just a scanner and the other one is the resident running on startup?

Use only one resident shield (avast) and you can use another one only for on demand scans. But the one you use for scanning your pc, should be deactivated. I recommend you use Avira Antivir free for on demand scans because
1) it's faster than AVG
2) better detection ability
3) has antirootkit and antispyware scanner
« Last Edit: March 31, 2009, 11:51:55 AM by ilker »

Offline Tarq57

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Re: question about avgfree 8.5 and avast home
« Reply #18 on: March 31, 2009, 12:15:37 PM »
It seems a bit of a waste of time and resource to me to install a similar application that is supposed to do the same job, to improve the chance of finding a virus by maybe 1%.
A lot of them will not run together, even if one is set to be a demand scanner only. (I believe Avira can be installed without the resident; I don't think the same is true of AVG.) I would uninstall it and run the AVG removal tool http://www.avg.com/download-tools.
For the investment in time, computer resource, and bandwidth, I'd be more inclined to install an application that belongs to a different category. Such as a firewall, and/or a HIPS, and/or something to confer immunity (eg: "Immunize" in Spybot,or SpywareBlaster, or a hosts file), and/or some other kind of behaviour blocker, such as Threatfire by PCTools, or Winpatrol from BillP studios. Any of these will run OK with Avast.
There are demand-only AV's that are designed to run with another AV installed, such as DrWeb's Cureit. http://www.freedrweb.com/cureit/ This one doesn't update, you re-download the application afresh each time you want to scan. It runs from the download location.
Of at least equal importance is keeping the operating system and programs patched and up to date, (especially Java and flash player) and having a regular backup of your important data, photos etc.
Keeping the OS updated will often prevent stuff your AV will catch from exploiting the system, too.
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Mr.Agent

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Re: question about avgfree 8.5 and avast home
« Reply #19 on: March 31, 2009, 12:42:19 PM »
i have heard some time that AVG 8.X are bogs your computer so im not sure if its true but i know that avast antivirus is way better than AVG anti virus !

Offline DavidR

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Re: question about avgfree 8.5 and avast home
« Reply #20 on: March 31, 2009, 03:47:03 PM »
I clicked on the eicar test files. Now i scanned a few of them in the chest, avast gave alerts. So they are real objects then.
hXXp://www.eicar.org/download/eicarcom2.zip
hXXp://www.eicar.org/download/eicar.com.txt
They are physical files in the chest, but that file name is a right royal screw up (technical term) as it incorporates the URL.

As you stated they are not actual html pages. But why does this difference occur? Why does web shield quarantine the objects only when silent mode is enabled?
Well this is something that isn't documented and I certainly didn't expect it, having just set the web shield to silent mode and clicked both of the links in your post. images 1&2
a) The connection is aborted and a firefox error 'The document contains no data' displayed, but no avast alert pop-up (as expected), but none on the bottom of the screen either, totally silent.
b) The same happened on the second link, so I think you can see the point I was raising that the user could be totally in the dark about it being a virus problem if all they see is 'the document contains no data' if using firefox or a similar alert in IE or Opera, etc.

Let's think about surfing a web site, not a direct download process. Do you have any certain idea about the rest of the content of a web site in which avast catch a malware? I asked previously this question, and i think it is as what i said.

You misunderstand what I said, as there can be no certainty in what may be displayed. As I said it depends on what the alert is on, if the .html page then nothing could be displayed. If another element then something 'may' be displayed but there is no guarantee as again it depends on what that element is, it could be that it is a flash element that makes up all or the majority of the content of the page.

So it is a crap shoot and there is no certainty to say what if anything will be displayed from one alert to the next. That is the problem all that the users sees is a problem displaying the page or elements of the page and is tearing out their hair trying to find out why, with not the slightest idea it may be virus related unless by some freak of chance they look in the virus chest.

After running the tests I looked in the chest and found the two screwed up file names, my view of this is that if this is to happen, a) it should be documented (see image 3) and b) the file name should be just that the file name and the URL placed in the Original location field, but I guess that isn't too easy.

By creating a name that includes the URL it breaks the standard windows file naming conventions (see image 4) and if the user tries to extract the file from the chest, to say check the detection at virustotal, it would fail. So to my way of thinking the file name in this format stops checking if the detection is good or bad limiting any good reason to sent it to the chest.
« Last Edit: March 31, 2009, 03:49:28 PM by DavidR »
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mevcit

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Re: question about avgfree 8.5 and avast home
« Reply #21 on: March 31, 2009, 07:27:27 PM »
Aww, really thanks for your detailed reply, David. Now i can understand you more clearly, and it gets more complicated when it is examined more deeply. :)

Today i came across with a malicious website, the web shield reacted only for the concerned content (the silent mode was enabled), and the rest of the website loaded. So you are definitely right that it depends on what the element type is. Again thanks for the time you spent to tell me what you're considering about this subject.

Between, i haven't given a suggestion to the one who opened this topic. Now i'm saying: Just drop avg, and switch to avast right now. lol ;D
You can take a look at the comparison table for the avg products - http://free.avg.com/download-avg-anti-virus-free-edition . The free version has a limitation for the anti-rootkit protection (despite of this limitation, it can catch some rootkits as every software uses different signature defining methods). It hasn't a web guard protection. And the database of avast is absolutely larger and you'll get a better real time protection due to the effective shields. ;)

Offline DavidR

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Re: question about avgfree 8.5 and avast home
« Reply #22 on: March 31, 2009, 08:01:34 PM »
You're welcome, now you have a better understanding of the web shield and whay may happen on detection.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 22.9.6034 (build 22.9.7554.734) UI 1.0.728/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

valentino

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I cannot browse the web
« Reply #23 on: March 31, 2009, 10:49:41 PM »
I had avast 4.7 before and it served me well. i unstalled it and i upgraded to avast 4.8 professional. the 4.8 professional gave me trouble when trying to browse the web using firefox. i would like to know why this happens. it browse the wed well when i take out the web shield but is this safe.... somebody help me.

-i have windows firewall
-only avast as an antivirus

Mr.Agent

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Re: question about avgfree 8.5 and avast home
« Reply #24 on: March 31, 2009, 10:51:59 PM »
did you allowed the ashweb (im not sure for the ash thingy :D) if not then allow it by trought the windows firewall

Offline Lisandro

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Re: question about avgfree 8.5 and avast home
« Reply #25 on: March 31, 2009, 10:54:23 PM »
I had avast 4.7 before and it served me well. i unstalled it and i upgraded to avast 4.8 professional. the 4.8 professional gave me trouble when trying to browse the web using firefox. i would like to know why this happens. it browse the wed well when i take out the web shield but is this safe.... somebody help me.

-i have windows firewall
-only avast as an antivirus
Which was your previous antivirus? How did you uninstall it?
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Mr.Agent

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Re: question about avgfree 8.5 and avast home
« Reply #26 on: March 31, 2009, 10:58:20 PM »
Tech :) He sayed that he was having Avast 4.7 Before so valentino tell us how you uninstalled it :)

Offline Lisandro

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Re: question about avgfree 8.5 and avast home
« Reply #27 on: April 01, 2009, 12:20:00 AM »
Tech :) He sayed that he was having Avast 4.7 Before so valentino tell us how you uninstalled it :)
Sorry, my fault.
Maybe he can say how did he get the 4.8 professional key, where did you buy it?
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