[Snort-sigs] Gator client (Gator/4.0) POST + bannerserver.dll

daniel uriah clemens daniel_clemens at ...842...
Tue Jul 8 13:57:28 EDT 2003


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Rule:

alert tcp $HOME_NET any  -> $EXTERNAL_NET 80 \
(msg:"OUTGOING GATOR/4.0 CLIENT CONNECTION VIA HTTP POST "; \
flow:to_server,established; \
content:"POST"; \
uricontent:"/bannerserver.dll"; content:"Gator/4.0";within: 30;\
classtype:policy-violation;)


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Sid:

--
Summary:

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

--
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:

x.1.20.23 - - [ 7/Jun/2003:22:34:07 -0500] "POST
http://bannerserver.gator.com/bannerserver/bannerserver.dll?GetBannerHash
HTTP/1.1" - - "-" "Gator/4.0"
This particular rule looks at the gator client's POST to a url with the
uricontent containing bannerserver.dll coupled with the Gator/4.0 client
identification tag.

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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.


 --
Ease of Attack:

simple

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False Positives:

--
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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