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Zombie crawlers with a referrer sig?

We're getting hit from various places

         

Everyman

6:39 pm on Jul 30, 2002 (gmt 0)



Does anyone see the referrer "http://www.iaea.org" in their logs?

It looks like some worm or virus has taken over some machines out there, and these various zombies are fast-crawling (if they're on broadband) several of our sites in a sporadic fashion. The referrer has to be bogus, a sort of "worm signature." Needless to say, we have no links from the International Atomic Energy Agency.

I can't find anything on this in Google Groups, except for one small piece of suspicious activity reported last February.

littleman

6:42 pm on Jul 30, 2002 (gmt 0)



Do a search for it, there is a lot of speculation about this one in the archives.

Everyman

6:54 pm on Jul 30, 2002 (gmt 0)



Thanks littleman, I just did that and was about to modify my post to ask a more specific question.

Does anyone see recent activity from multiple domains leaving this sig?

The posts I just read didn't suggest the zombie angle. If this thing has been zombied, it may be in a position to DoS us and I have some coding to do.

korkus2000

7:01 pm on Jul 30, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



I have been seeing it for 2 days. It hasn't been real heavy. I assumed it was a new spider.

<edit>Nevermind I found it</edit>

jdMorgan

7:53 pm on Jul 30, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Everyman,

When they try to "visit" my site, they are using iaea.org as an {HTTP_REFERER}, not as a
{REMOTE_HOST}. The log entry shows that the request does not come from iaea.org, it was
refered by a link on iaea.org. So unless iaea.org is really linking to your site, this is likely just
a spamtool with a faked referer field to fool filters (like mine) that reject requests for certain
pages if they come in without a valid referer...

I haven't been visited by this agent in a long time, but a block on requests refered from iaea.org
is one of the very oldest entries in my "go away" list.

Jim

Everyman

8:05 pm on Jul 30, 2002 (gmt 0)



So unless iaea.org is really linking to your site, this is likely just a spamtool with a faked referer field to fool filters (like mine) that reject requests for certain pages if they come in without a valid referer...

Thanks, jdMorgan. Yes, I know it's coming in as a referrer, and I know that it had to be a faked referrer. What had me confused was why different, seemingly unrelated amateur crawlers were faking this same referrer. I though of zombies, but the notion of a spam tool never occurred to me. Your suggestion makes a lot more sense to me. It's probably not anything to worry about.

The fact that the history of this thing goes back a year or so is further evidence that it's most likely a spam tool rather than some sort of zombie threat.

jdMorgan

10:03 pm on Jul 30, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Everyman,

Dang! Got carried away and forgot to answer your main question...

Yes, I had a visit last weekend. I'll have to check my logs this evening and see if it came from
multiple remote-hosts.

Just to be clear on this thread, how do you define "zombie" - a distibuted agent for launching DOS
attacks? - I are an engineer, and like to make sure I understand how the terms are being used. :)

Thanks,
Jim

mack

10:08 pm on Jul 30, 2002 (gmt 0)

WebmasterWorld Administrator 10+ Year Member Top Contributors Of The Month



"Does anyone see the referrer "http://www.iaea.org" in their logs? "

I see this a lot. It just looks like a user has clicked through froma link. Very strange.

korkus2000

12:13 am on Jul 31, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



I am getting very aggressive hits from it or them.

hanuman

3:46 am on Jul 31, 2002 (gmt 0)

10+ Year Member



Recently I am getting quite weird HTTP_REFERER[s], including (seriously) BillGate and xxxxxx--------

The “BillGate” one seems to be interested in graphics the others does not really put an overload on my bandwidth, therefore I don’t take the time to block them.

www.iaea.org is still showing up on my logs on a daily basis. Since my site does not have anything to do with them, I have blocked it.

For a better Internet
hanuman

Dreamquick

8:05 am on Jul 31, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Unless you are getting genuine traffic from the site then I'd suggest that you are seeing a certain brand of spambot whose referrer is hard-coded to "http://www.iaea.org" (I can't remember which right now but if you really want to know drop me a sticky and I'll look it up later), I seem to remember that the same bot used fake user-agents which made the referrer kind of a finger-print for that particular bot.

This is also why "http://www.iaea.org" crops up in several of the .htaccess posts which relate to blocking spambots and other malicious bots. I'm sure a site search would throw up several examples of these scripts.

- Tony