[Snort-sigs] Generic Gator Client Post rule

daniel uriah clemens daniel_clemens at ...842...
Tue Jul 8 13:56:38 EDT 2003


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Rule:

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


--
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 POST request from a  Gator client.


--
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.


--
--
Detailed Information:

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

x.1.20.23 - - [ 6/Jun/2003:x:48:16 -0500] "POST http://gs.gator.com/gs_hi
HTTP/1.1" - - "-" "Gator/4.0"

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

--
Affected Systems:

windows based operating systems.


-- 
--
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.

This signature identifies the posting of arbitrary data to a remote server
usually
 without the knowledge of the end user that data is being uploaded or what
data is being uploaded.

 --
Ease of Attack:

simple

--
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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