[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
768: 0x41EA94F5 - A3 0C 5B C2 EF 0D 2C E5 E9 BF C8 33 A7 A9 CE 76
1024: 0xB8732E79 - 2D8C 34F4 6411 F507 136C AF76 D822 E6E6 B873 2E79
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