Full Disclosure mailing list archives
Re: Random HTTP-Requests
From: Andres Riancho <andres.riancho () gmail com>
Date: Tue, 31 Mar 2009 11:56:45 -0300
Jan, On Tue, Mar 31, 2009 at 11:30 AM, Jan G.B. <ro0ot.w00t () googlemail com> wrote:
Hi there, I've noticed that some weird requests are showing up in the error logs of one of my apache webservers. The requests seem to have the following in common: * GET Request on some random alphanumeric string like "GET /hDMe9NS"
w3af [0] uses these types of requests to identify the 404 response of a web application. Maybe its somebody using w3af to scan your website? Are you seeing a lot of requests coming from the same IP address after the "random" request?
* Referer has some randomized, invalid URL like http://www.kSJn32.com/ckJMSC/kSMSR/mndm/sads.html
w3af [0] doesn't perform requests with invalid referers; at least not in the original version. Someone could have modified it to behave like this.
Every domain that showed up wasn't registered - no DNS reply or whatsoever. Here's an example out of my Log file ( I slightly modified the random strings - just in case ;)) [Tue Mar 30 10:12:41 2009] [error] [client 124.236.*.*] File does not exist: /var/www/foo.bar/web/hFBeX7EK, referer: http://www.ruyidqpg.com/SJQubgQP/QenlI/_n2Pn/_px/Uph/wSBf_l/leJB/C8Y00EIPfD07U/AO8lnzhgAl/SD70gA8Jg/nfA013J/ZOWAgYCZ/DOf7hg.html
How does the corresponding entry in the access.log file look like? It should show you some user agent... To find this just: grep hFBeX7EK access.log
The amount of random directories isn't constant. Any Ideas what is causing these requests? Is it a well known worm? What could it be.. what for..? The Server is Running Apache with PHP, the main application is made with the symfony framework. Thanks, Regards PS: You believe this doesn't belong into this mailing list? Sorry, I'm not interested - keep it to yourself. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
[0] http://w3af.sf.net/ Cheers, -- Andrés Riancho http://www.bonsai-sec.com/ http://w3af.sourceforge.net/ _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Random HTTP-Requests Jan G.B. (Mar 31)
- Re: Random HTTP-Requests Andres Riancho (Mar 31)
- Re: Random HTTP-Requests Jan G.B. (Mar 31)
- Re: Random HTTP-Requests Andres Riancho (Mar 31)