Security Incidents mailing list archives

Re: Method to Clean up IIS servers hit by CRv2


From: "Ralph Mellor" <ralph () dimp com>
Date: Mon, 6 Aug 2001 13:27:22 -0500

So far I've been doing the following:

1. Patch the server.

2. Remove root.exe from the web directories.

3. Remove explorer.exe from c: and/or d:

4. reboot.

My main question is do you need to mess with the registry keys that it
alters? Are these reset on reboot or do you need to set them to some
value? If so what values? Or delete them all together?

If you want to be sure the machine is clean you need to wipe it and
start from scratch.

Unlike CR1, CR2 leaves a back door, and you don't know what other
things have been done using that backdoor.


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