WARNING, DANGEROUS BUG !! 5.1.864 is not scanning anything

[Vlk]

Hmm.. Indeed this was reported by RejZoR in one of the beta builds but we could never simulate it here. The upgrade path from v4.8 to 5.1 was tested on a number of different systems and we couldn't find a single problem.

Now, it would be really useful to find out what's different about your systems.
To help us analyze the problem, please ZIP the following directories

C:\Program Files\ALWIL Software\Avast5
C:\ProgramData\ALWIL Software\Avast5

and upload to ftp://ftp.avast.com/incoming

Also, please add the files C:\Windows\System32\Drivers\asw*.sys and an export of the registry key HKLM\Software\ALWIL Software


We will analyze the files here and hopefully find out what makes your install different from a clean install.


Many thanks
Vlk

[SpeedyPC]

Vlk I can't give you what you need because I went back to v5.0.677 :'(

[ross]

The upgrade path from v4.8 to 5.1 was tested on a number of different systems and we couldn't find a single problem.

In my case I was upgrading from the previous stable build (5.0.677) to the last version of the 5.1 beta that was released. Unfortunately I did a clean install so can't provide a zipped copy of the install dir.

[Silent Assassin]

Hi
I'm also having this problem on my 64bit Vista PC. Avast is practically dead - only the web shield seems to be active .

Vlk, I cannot find the alwil software folder inside Program Files , although there is one under ProgramData.

Also, do you need all of the drivers in C:\Windows\System32\drivers?

Thanks

[Jekku]

I'm also having this problem with Windows 7 x64 systems. Every one of them were completely "silent" after GUI update from build 5.0.677. x86 XPs updated ok. Fortunately Avast is so easy to re-install, so I ended up doing that.

Quite serious bug though, if people don't check their AV after update.

[Vlk]

I'm also having this problem on my 64bit Vista PC. Avast is practically dead - only the web shield seems to be active .

Vlk, I cannot find the alwil software folder inside Program Files , although there is one under ProgramData.

It depends where you installed the program to.

C:\Program Files\ALWIL Software\Avast5

is the default location, unless you changed it in the setup wizard.

Also, do you need all of the drivers in C:\Windows\System32\drivers?

No, sorry, I edited my post, we only need asw*.sys files (all of our drivers are named like this).

Thanks
Vlk

[Silent Assassin]

I'm also having this problem on my 64bit Vista PC. Avast is practically dead - only the web shield seems to be active .

Vlk, I cannot find the alwil software folder inside Program Files , although there is one under ProgramData.

It depends where you installed the program to.

C:\Program Files\ALWIL Software\Avast5

is the default location, unless you changed it in the setup wizard.

Silly me - I could have thought of that
I've already sent you 3 files (I hope you've got them):
[ProgramData]Avast5 (Silent Assassin).zip
avast (Silent Assassin).reg
drivers (Silent Assassin).zip

I'm also sending you avast! Free Antivirus (Silent Assassin).zip which is the folder to which I installed avast.

Thanks

[Vlk]

Thanks. One little thing: the registry export is from HKCU, not from HKLM. Could you please also do one from HKLM?

Thanks
Vlk

[Silent Assassin]

I'm also sending you avast! Free Antivirus (Silent Assassin).zip which is the folder to which I installed avast.

Done

Thanks. One little thing: the registry export is from HKCU, not from HKLM. Could you please also do one from HKLM?

Thanks
Vlk

You mean HKEY_LOCAL_MACHINE\SOFTWARE\ALWIL Software? I don't have such an entry there (see screenshot).

[Vlk]

Oh you have 64-bit Windows, right?
Then it's HKLM\Software\WOW6432Node\ALWIL Software.

Thanks
Vlk

[Silent Assassin]

Oh you have 64-bit Windows, right?
Then it's HKLM\Software\WOW6432Node\ALWIL Software.

Thanks
Vlk

OK, I've sent it. Look for avast (Silent Assassin) [new].reg

[Vlk]

Thanks much. It looks like the driver files haven't updated (are still version 677).
Please try doing the following: copy the *.sys from

D:\PROGRAMY\avast! Free Antivirus\Setup\INF\x64

to

C:\Windows\System32\Drivers

(actually, you don't have to copy aswFW.sys, aswNdis.sys and aswNdis2.sys as these belong to the AIS firewall - but even if you do copy them, it will do no harm...).


After copying the files, reboot the computer. Does that solve the problem?

Thanks
Vlk

[Silent Assassin]

Thanks much. It looks like the driver files haven't updated (are still version 677).
Please try doing the following: copy the *.sys from

D:\PROGRAMY\avast! Free Antivirus\Setup\INF\x64

to

C:\Windows\System32\Drivers

(actually, you don't have to copy aswFW.sys, aswNdis.sys and aswNdis2.sys as these belong to the AIS firewall - but even if you do copy them, it will do no harm...).


After copying the files, reboot the computer. Does that solve the problem?

Thanks
Vlk

When copying I get a message saying that I don't have the permission to do that (LOL - I'm the administrator ).

I've disabled avast's self-defense module and it worked. I will reboot the computer now.

[Silent Assassin]

Hooray! Avast is working now !

However, there's still one thing - the behaviour shield isn't showing any activity . What's wrong?

[Vlk]

There's one registry value missing.  Namely, in

HKLM\System\CurrentControlSet\Services\aswSP\Parameters,

create a REG_DWORD value called BehavShield and set it to 1.

Then reboot and see what happens.

Thanks
Vlk