[aclug-L] Re: Hacker or ??

[Joshua S Brown <joshb@xxxxxxxxxxx>]

Thanks....any help would be good right now.


Josh

On 18 Sep 2001, gLaNDix (Jesse Kaufman) wrote:

>
> /usr/local/apache/bin/apachectl stop
>
>  : ^ )
>
> I don't think there's any reliable way to stop the traffic to linux
> servers...  basically very similar to the GET /index.ida?XXXX... stuff
> from CRII that seems to have become a normal occurance in atleast my
> httpd-access.log file...  i know there were various CodeRed Killer
> scripts (such as the Apache::CodeRed perl mod), but nothing that
> completely stopped the traffic...  what i had done was add any hosts i
> found to my /etc/ipfw.conf and denied all traffic on port 80 from them,
> but in a business situation, this is not very practical, since you could
> very easily block potential customers from seeing your website...
>
> the only reccomendation i have gotten is to create a small index.ida
> file (or whatever the file is that the new attack is attempting to
> access) by doing a 'touch /usr/local/www/data/index.ida' (or wherever
> your DocumentRoot is) so that instead of sending a "huge" 404 error, it
> only sends the information contained in your emtpy index.ida file...  i
> don't know how much of a difference it really makes, but some have said
> it should help bandwidth usage...  on my system, i really haven't
> noticed any difference, but it don't have to look at a billion 404
> errors in my log (which also means no more related entries in your
> httpd-error.log, thus smaller log files if that is a concern)...
>
> other than that, i think we just have to grin and bear it until the
> world upgrades to apache... i mean installs the support pack... : ^ )
>
> gLaNDix
>
> p.s. I'd recommend subscribing to AntiOnline.com...  you get to hear
> about these things pretty quick...  i was actually surprised to hear
> about it there before on any user group lists...  i bcc'd the e-mail to
> a number of other places, including RR, so maybe this time they'll take
> action sooner......... : ^ )
>
> On 18 Sep 2001 13:05:31 -0500, Joshua S Brown wrote:
> >
> > Looks like a new worm that tries to attack 16 vulnerabilities in IIS.
> > Wonderful for people who run Linux but are still being pounded.
> >
> > Josh Brown
> >
> > Anyone have any ideas to stop it or just grin and bear it?
> >
> > On Tue, 18 Sep 2001, Steven Saner wrote:
> >
> > >
> > > Appears that this is the worm that Glandix reported. I got the
> > > readme.exe email this morning as well. It was made to appear like a
> > > bounce back message from someplace.
> > >
> > > Steve
> > >
> > >
> > > On Tue, Sep 18, 2001 at 12:49:24PM -0500, Joshua S Brown wrote:
> > > >
> > > > We are having the same problem on all our web servers. Is this a hack or
> > > > something like code red?
> > > >
> > > >
> > > > Josh Brown
> > > >
> > > > On Tue, 18 Sep 2001, Maverick wrote:
> > > >
> > > > >
> > > > > Hi, all
> > > > >  Recently I check on my apache webserver access.log
> > > > > and find out a lot of entrie like this:
> > > > > 24.254.90.73 - - [18/Sep/2001:10:44:38 -0700] "GET
> > > > > /scripts/..%c0%af../winnt/sys
> > > > > tem32/cmd.exe?/c+dir HTTP/1.0" 404 231
> > > > > 24.254.90.73 - - [18/Sep/2001:10:44:39 -0700] "GET
> > > > > /scripts/..%%35%63../winnt/sy
> > > > > stem32/cmd.exe?/c+dir HTTP/1.0" 400 215
> > > > > 24.254.90.73 - - [18/Sep/2001:10:44:41 -0700] "GET
> > > > > /scripts/..%%35c../winnt/syst
> > > > > em32/cmd.exe?/c+dir HTTP/1.0" 400 215
> > > > > 24.254.90.73 - - [18/Sep/2001:10:44:43 -0700] "GET
> > > > > /scripts/..%c1%9c../winnt/sys
> > > > > tem32/cmd.exe?/c+dir HTTP/1.0" 404 231
> > > > > .....
> > > > >
> > > > > Is that someone try to access my /var/www/scripts/?
> > > > > and my error.log generate something like this..
> > > > > Tue Sep 18 10:52:27 2001] [error] [client
> > > > > 24.234.20.197] File does not exist: /
> > > > > var/www/c/winnt/system32/cmd.exe
> > > > > [Tue Sep 18 10:52:28 2001] [error] [client
> > > > > 24.234.20.197] File does not exist: /
> > > > > var/www/d/winnt/system32/cmd.exe
> > > > > ....
> > > > >
> > > > > anyone have any idea? or did I set something wrong?
> > > > > or really have a hacker knocking on my door?
> > > > >
> > > > > Thanks.
> > > > > Mav
> > > > >
> > > > > __________________________________________________
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>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<
Joshua Brown
Administration / Web Development
WebSurf Internet Services
www.websurf.net
316-945-7873 or 877-329-1671 (toll-free)
>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<

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