[Full-disclosure] Random HTTP-Requests
andres.riancho at gmail.com
Tue Mar 31 15:56:45 BST 2009
On Tue, Mar 31, 2009 at 11:30 AM, Jan G.B. <ro0ot.w00t at 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  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
w3af  doesn't perform requests with invalid referers; at least not
in the original version. Someone could have modified it to behave like
> 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:
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.
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