Code Red 2 Erratication

Sun Aug 19 10:56:57 UTC 2001

At 2:49 am -0700 19/8/01, Joe Blanchard wrote:
>Who was/is talking about a DOS??? I wasn't. Your impling that my fix 
>(which doesn't work and I've gotten many responses about having 
>"tried that") causes a DOS. Um, Please re-evaluate the data I have 
>shared. There is NOTHING I have offered that is not already known. 
>You come to my website, ask for a file (default.ida) and I send it 
>to you, Wheres the DOS in that?
>
>Legal or not, Um, next case...

There is an Apache module for dealing with CodeRed in a civilised way:

from ApacheWeek:

                    Continuing requests for /default.ida

      We continue to get a large number of messages from system
      administrators who see requests for /default.ida in their Apache
      access logs. The requests look similar to this:
192.168.2.12 - - [19/Jul/2001:16:55:47 +0100] "GET /default.ida?NNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNN%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%
u7801%u9090%u9090%u8190%u00c3%u0003%u8b00%u531b%u53ff%u0078%u0000%u00=a
   HTTP/1.0" 400 252 -

      If you are running Apache there is nothing to worry about, these
      requests are part of the [5]Code Red Worm designed to search out
      vulnerable IIS servers running on Windows. You can quite happily
      ignore these requests, or [6]get them back

  6. http://www.apacheweek.com/issues/01-08-17#featured
  9. http://www.onlamp.com/pub/a/apache/2001/08/16/code_red.html

Featured articles

In this section we highlight some of the articles on the web that are 
of interest to Apache users.

Fancy a role in Episode 2, Attack of the Code Red 2 Worm? No, this is 
not a new B-grade movie but how you can be a good internet citizen 
and let people know that their server has been infected by the Worm. 
One way is by using Apache::CodeRed written by Reuven M. Lerner. In 
this article, he explains how the module intercepts requests for 
/default.ida, determines the host name of the HTTP client, sends only 
one warning e-mail message in a 24-hour period to SecurityFocus and 
the administrator of that client, and keeps a list of IP addresses to 
be ignored.

--

Regards

	f