[Snort-sigs] Generic Gator client GET Rule

daniel uriah clemens daniel_clemens at ...842...
Tue Jul 8 13:56:25 EDT 2003


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Rule:

alert tcp $HOME_NET any -> $EXTERNAL_NET 80 \
(msg:"Generic GATOR CLIENT CONNECTION VIA HTTP GET - Gator - "; \
flow:to_server,established;\
content:"GET";\
content:"Gator";\
classtype:policy-violation; )


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Sid:

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Summary:

A client on your network has somehow had a gator adware/spyware client
installed on its host.
This rule should detect a generic GET request from a  Gator client.


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Impact:

Many corporations and individuals view this type of adware/user profile
software a policy violation by their end users. This type of software is
also generally thought of as 'spy-ware' by the way sends data about your
surfing habits to a third party without the direct knowledge of the end
user.


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Detailed Information:

A simple dump of http get requests on your network will reveal something
lik the following.

x.x.x.x - -  "GET http://gatorcme.gator.com/gatorcme/autoupdate/installdatemanager.exe
HTTP/1.1" - - "-" "Gator/1.0 Date Manager {56A31F5B-6B18-42FD-8D2B-xxxxxxxxxxx}"

This particular rule looks at the GET , and then the Gator' portion of the
client identifation.

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Affected Systems:

windows based operating systems.


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Attack Scenarios:
A website tricks the end user into loading this software, or this software
can be coupled with other software installing itself silently on your
computer without the end users knowledge.


 --
Ease of Attack:

simple

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False Positives:

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False Negatives:

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Corrective Action:

The esiest way to clean up this software is to download a copy of
pestpatrol from pestpatrol.com.

To eliviate further installation you should tighten up the security level
on your browser and watch what software you install.


--
Contributors:

Daniel Uriah Clemens
dan.clemens at ...1661...


-- 
Additional References:





-Daniel Uriah Clemens

Esse quam videra
    		(to be, rather than to appear)
http://www.birmingham-infragard.org   | 2053284200
fingerprint: EDF0 6566 2A4A 220E 5760  EA1F 0424 6DF6 F662 F5BD







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