I have the same problem. My pc crash with aswnet.sys and ndis.sys when I install a program with windows 8.
In my laptop, I upgrade windows 7 to windows 8 and any problem but in the Home PC, I was a fresh install and I have many crash.
When I uninstall the Avast, the problem was out.
I don´t have any problem with other programs or drivers.
Fixed soon please.
(Avast Internet security, Intel i7 3.4. Geforce 460gtx, 8gb ram, Sound blaster x-fi titanium sound car)
Samsung R560-Aura Dilis Laptop here @ win 8 x64
still aswnet.sys BSOD QQ
Still BSOD with version 1474 and aswnet.sys. When turning Webshield off, everything works. I have payed this product and they have had six days to correct the problem. Not a pro work at all.
Patience my friend, they are trying. I know it sucks, but sometimes it takes time to figure out the cause before they can find a solution. 
As for fixing it, they have made 2 attempts in the last couple days already, which have worked for some, but not others. The issue is also not consistent as some systems get the error and some don’t. We just have to wait it out and hope things get fixed soon.
https://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=1356
https://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=71
Can’t speak for the others, but:
thanks!
Hi, this is strange. Others reported turning Network shield off to help, Web Shield is not directly connected to this new aswnet.sys driver (of course it uses network, so its possible of course).
It doesn’t appear to be a consistent error either, so I’m wondering if it’s something else on the system that is conflicting in Windows 8.
Hello everyone. I am having this same exact BSOD on Windows 8 x64 Professional. I am unable to upload my memory dump at the moment as it is a very large file and my upload speed is very poor on VDSL. Here is some information on my crash however. http://pastebin.com/Fqaxn7LT I am on Avast! Build #7.0.1474
Ahh…the old DRIVER_IRQL_NOT_LESS_OR_EQUAL BSOD reason. Same thing I’ve got here after further investigation [and crashing]. I remember that thing plaguing systems back in the old Windows 2000 era. ;D
Clean install of Windows 8 x64. First was getting BSOD of Driver IRQL not less or equal ndis.sys and now aswnet.sys BSOD’s are starting. Happens at random moments. ASUS Motherboard and NVIDIA driver. Glad to see I’m not the only one with this issue.
From what I’ve heard, the previous update fixed the ndis.sys BSOD problem. Still awaiting updates on the aswnet.sys one, though. Windows 8 x86 here. My Windows 8 x64 on my other system remains unaffected by this bug.
Yes a blast from the past come back to haunt me it would seem. I recommend everyone check out this program for diagnosing BSODs as well it is what I used to generate that pastebin file. http://www.nirsoft.net/utils/blue_screen_view.html I have no affiliation with them, rather I am merely suggesting a peice of software that has proved useful to me over the years. 
I’ll give that a try if I can get on the system long enough :lol:
I never had this problem then I updated to the new 7.0.1474 version of avast and now I do have the issue so this is not fixed.
I am also having this problem in my windows 8 (64 bits).
I have uninstalled avast until this problem is fixed… Because I was not able to use the computer with all these crashes.
Do you guys need my dump file? If so, How can I find my dump file in windows 8? I am a bit lost here…
Thanks for your time,
Elminster
Snip ~ Double post, sorry, update post below /
It crashed 
Minidump link: https://docs.google.com/open?id=0B_dolYolq39ZcUxxUzlfdTZyRTQ
Also uploaded minidump to ftp://ftp.avast.com/incoming
I’ll upload the full dump later.
On Fri 11/2/2012 8:35:52 PM GMT your computer crashed crash dump file: D:\Windows\Minidump\110212-24164-01.dmp This was probably caused by the following module: aswnet.sys (0xFFFFF880061623AA) Bugcheck code: 0xD1 (0x38, 0x2, 0x0, 0xFFFFF880061623AA) Error: DRIVER_IRQL_NOT_LESS_OR_EQUAL file path: D:\Windows\system32\drivers\aswnet.sys product: Avast Firewall company: AVAST Software description: AVAST Firewall Core Driver Bug check description: This indicates that a kernel-mode driver attempted to access pageable memory at a process IRQL that was too high. This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswnet.sys (AVAST Firewall Core Driver, AVAST Software). Google query: AVAST Software DRIVER_IRQL_NOT_LESS_OR_EQUAL
How did you extract a single dump? Thanks.