Network Connection Gone Windows Server 2003

20 pts.
Tags:
LAN
Network Connection lost
Network connectivity
Windows Server 2003
i used trogan remover scan and registry easy scan on my primary domain controller when i was restart my sever. my local area connection icon are missing and services are stopped like network connection,netlogon,dhcp,tcp/ip and other.how i correct this problem sorry i forget to add that when i try to start services manually it shows an error that the dependency service or group failed to start and one more thing that my additional domain controller running fine.

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Can you restart the server in safe mode with networking? Do services work there? If not, sounds like your system is beyond repair and will need to be reinstalled. Were there any critical services like DHCP, DNS running on this system and not mirrored on the other DC? If so, you need to find a way to backup the information so it can be restored at reinstallation.

Sometimes with a trojan (especially a rootkit), it is much better to reinstall anyway as you cannot be sure what system files have not been changed or modified. You should always have antivirus protection on a DC and keep patches up to date. The DC should also never be exposed to the internet.

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  • carlosdl
    I agree, maybe reinstallation is the best option. What is the status of the network adapter in device manager ? It might be that some driver became corrupt by some malware (or some anti-malware trying to clean it). It this was the case, a network driver reinstallation could solve the problem.
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  • Kevin Beaver
    I've found in situations like this that re-installation (ideally with a re-format) is much easier than trying to troubleshoot and clean up the mess. Best of luck!
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