[Esd-l] Re: Addition to Klez Signatures

John D. Hardin jhardin at impsec.org
Thu Jun 6 20:48:01 PDT 2002


On Mon, 3 Jun 2002, William R Thomas wrote:

> With the addition of the following rules to your Klez definition,
> we are catching something like 90% of all Klez incarnations.  Not
> sure if you are interested in them or not.
> 
>         :0
>         * ^Subject: A *(special|very)* *(funny|humour|excite|nice|new|good|powful)* *(game|tool|website)
>         $TRASH
> 
>         :0
>         * ^Subject: A  (WinXP|IE 6.0) patch
>         $TRASH
> 
>         :0
>         * ^Subject: W32.(Klez.E|Elkern) *removal tools
>         $TRASH
> 
>         :0
>         * ^Subject: Worm Klez.E immunity
>         $TRASH
> 

Well, the basic sanitizer catches all variants so far. The only reason
for the local-rules signature traps (at least from my POV) is to
identify the specific attack to give the sender some idea of how to go
about cleaning it up.

Thanks!

--
 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
 jhardin at impsec.org                        pgpk -a jhardin at impsec.org
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