Free Avast Windows 7
Donnell Simon
Have you ever had avast downloaded? You ever witness the speed of your computer diminish just by having it? Or the aggressive pop ups you get about possible malware on your pc? Lets not even get into them monitoring your browser history and selling your data to foreign companies overseas.
I've been practicing my C# lately on a new system. Compiling is fine, however when I try to run the generated .exe file, avast! thinks it is malware and runs it in the sandbox for a while (and it doesn't work in the sandbox as it should work normally), and only when it has finished scanning it will it let me run it normally.
...manually edit[ing] the line where the path for the exception is. So, using the "browse" button, select first the folder, and then edit the resulting path and "add" to exclusions. You can also use "*" and "?".
As others have mentioned, the culprit is DeepScreen. It's especially bad if you have Avast set to Silent/gaming mode because then you can get unexpected/bizarre behavior and have no idea why. (I spent an entire day debugging the installer for a program I'm developing because it suddenly started running twice every single time I launched it--DeepScreen is very forgetful--and only succeeding on the the second run.)
Going under Settings, Update, Details, you can turn off popups for the majority of them--the annoying update-related popups, which should make it easier to work undisturbed, play video games, etc. But DeepScreen popups still pop up!
Unfortunately, the only way I currently have of disabling DeepScreen (in Avast 2014.9.0.2021) is to disable all shields! And I'm not even sure that this is working, since I sometimes get DeepScreen popups even with all shields disabled. Avast can't be prevented from starting with Windows during boot, so maybe uninstalling Avast is the only solution.
I have tried all of the other solutions, like adding an exclusion or deep screen exclusion or exclusion to File System Component shield or disabling deepscreen, etc. The only solution that works for me is to stop the Avast service in services.msc or Computer Management/Services.
Done all the things above (including scanning/excluding the directory/exec where the exec is located) but 20 second after starting, avast kill it. No message, no quarantine, but i have found a way to circumvent the problem:
I'm an amateur programmer, and I'm getting desperate and mad because of a big issue: most of my programs are blocked by Avast Antivirus, while some aren't, and I don't understand why.The more I try to investigate, the less I understand what the problem could be.
There are already many topics about that on the web. However, most of them give only superficial answers: they just explain how antivirus software works with signatures and detection heuristics, or state that you just have to add the offending application in the white list without asking any other question. While it is certainly correct, it's not acceptable answers in my sense, because I'm still left with my own programs that refuse to work without any concrete idea to start investigating.
First of all, the only antivirus software that blocks my programs is Avast 7.x. No other antivirus software see any inconvenient to run my software. Secondly, I haven't installed Avast myself; it is installed on a friend's machine.
I have Windows 7, and he has Windows XP. I'm completely sure that the problem is avast only: when it is temporarily disabled, or if the program is added to its white list, everything works nicely as expected.
The first one is open source, and I can give a link to the executable and the source code if needed. The two others are closed source but free to use, I can give a link to the executable of the current version only.
The only obvious common things between these three programs are me as a developer, my Windows 7 machine that compiled them, the compiler family which is MinGW/GCC, and they are all Win32 GUI applications without any framework (no MFC, no WPF, no Qt, wxWidgets or whatever; just pure Win32/C GUI applications).
This is unacceptable. Newbie users of my program, especially the game, don't know how antivirus software works; don't know how to put it into the white list and why it will unblock it; don't know how to change settings of their antivirus software; if they see the pop-up, won't understand it and will end up being afraid or disappointed because they can't play without knowing why; and if they don't see the pop-up, I can't expect them to wait 5 minutes with a half-freezing computer. each time they want to play.
Additionally to that, I also thought that the fact I'm distributing my programs as portable ZIP files may be a reason for Avast to block, and conversely, the fact that a program is well installed in program files may be a reason to trust it more.
So I made a simple experience: I compiled a new Inno Setup 5 installer for the beta 2.0.0 of my game, as well as one for the version 1.3 of my text editor, and discover that the installers themselves were blocked!
I made another experience with my friend, where I tried to find exactly the place where the programs crash, based on using MessageBeep (MessageBox is also blocked!). I didn't noticed anything problematic. The game is blocked when SetDlgItemText is called for the first time in the login dialog box, but if I remove all SetDlgItemText it is blocked further down. In the text editor, it is blocked while populating the menu bar...
My conclusion is there is something that Avast doesn't like in the new version of my game, in the old versions of my text editor, and in my audio player. Something that is absent in the newest version of my text editor. What could it be? Do you have any clue? Do you have only an idea on how I could proceed to find what it is so that I can hope to fix it? Is there only a way to analyse such a problem, or is the whole world screwed by Avast?
Note that I'm a single person and not a company, all those programs are free to use, I have not pay any IDE to develop them, and I'm not paid by the users when they use them, so I assume that a certificate is probably not affordable at all. Moreover, I don't know if it's a true solution, how to sign an application compiled with GCC, and I really don't want to switch to an "usine gaz" like Microsoft Visual C++ (MSVC). I would prefer strongly forget that option if there is any other solution, even a very dirty one.
Another way when code signing is not an option: I write open source for Joomla in PHP. After I received the first indications that Avast marked my file as a (false) positive, I contacted them and they whitelisted my file within hours.
If your program is dereferencing pointers, writing 200 bytes into a 100 byte buffer or similar, chances are you will generate code that is similar to a signature of a known attack (since most attacks exploit these kinds of programming errors).
Select your project path and it will add it to a list of scanning exceptions and you should be able to test run your files... it worked well for me. I also disabled deep scan in the same menu due to a suggestion from another member.
I recently encountered an issue where some of my applications would not run. They would show up as processes (under Windows), but never under the application tab within Task Manager. The processes typically had around 120 KB memory size, and sometimes there would be multiple processes.
Then find and click the 'Exclusions' option from the menu on the left side. Add your project folder in the file exclusion list. This is safe unless dangerous viruses crawls into your project folder without your knowledge :P
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