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AR15.COM
1/18/2012 10:29:41 AM EDT
Having a problem with a Windows 7 laptop I'm fixing for someone.  It had some pretty nasty malware that I was able to remove.  However, now that the malware is gone, something is buggered up in the network stack.  DNS isn't working (can't browse or ping sites by name).  You can nslookup domains and they fire back the correct IP.  I've tried manually resetting TCPIP and Winsock manually, but no dice.

Suggestions?
1/18/2012 12:04:28 PM EDT
[#1]
remove the network card from device manager and restart the computer.  


otherwise
1/18/2012 12:27:03 PM EDT
[#2]
Also check the HOSTS file in system32/drivers/etc.
1/18/2012 12:38:16 PM EDT
[#3]
Quoted:
Also check the HOSTS file in system32/drivers/etc.


link

1/18/2012 2:54:13 PM EDT
[#4]
In command prompt you can enter netsh int ip reset c:\resetlog.txt  to reset the entire tcp/ip stack.

http://support.microsoft.com/kb/299357
1/19/2012 6:01:33 AM EDT
[#5]
No go... I used LSPFix to get DNS working to the point that I could browse the internet.  However, something is screwing with Windows Update and it errors out.  I also can't PING websites from the command line (unknown host name), but can browse to them.  I've tried resetting TCPIP/Winsock/etc.
1/19/2012 6:18:28 AM EDT
[#6]
You are most likely infected with a root kit then


Posted Via AR15.Com Mobile
1/19/2012 6:33:08 AM EDT
[#7]
Quoted:
You are most likely infected with a root kit then


Posted Via AR15.Com Mobile


Tried a few rootkit scanners; didn't find anything.  I gave up and initiated a restore from the factory recovery partition.