[Snort-sigs] LSA Exploit rule

Jens-Harald.Johansen at ...2457... Jens-Harald.Johansen at ...2457...
Wed May 5 02:47:05 EDT 2004


Hiya,

Yesterday I tried to create a rule which alerts on the LSA Exploit used by
the Sasser worm.
Haven't seen any of the Sasser.d here yet so I'm not sure if it can be used
for detecting that one.

So far I haven't seen any false-positive.

Any comments on this one ?

alert tcp any any -> $HOME_NET 445 ( msg:"LSA exploit"; content:"
|313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131|";
 offset:78; depth:192; flags:A+; classtype: misc-activity; sid:4000001;
rev:1;)


Jens-Harald Johansen
Hydro IS Partner
Int: 138 - 8808
Tlf: +47 22 53 88 08
Mob: +47 934 45 413

There are 10 kinds of people in the world: Those who understand binary and
those who don't...


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