[Snort-users] Please, point to the source where i can read about some signatures

twig les twigles at ...131...
Fri Sep 6 09:13:04 EDT 2002


Actually I got some false positives on that sig
yesterday.  I just did a google search on the message
and the 3rd or 4th link got me to arachnids.


--- "Anton A. Chuvakin" <anton at ...5376...> wrote:
> Sergei and all,
> 
> >What does this message mean:
> DDoS tool shaft client (i.e. a controll program) is
> probably talking to
> one of the control modules of shaft
> denial-of-service network. The
> handlers than can send commands to DoS bots to
> initiate an attack.
> 
> >[**] DDOS shaft client to handler [**]
> >09/05-17:16:14.598799 213.152.133.10:80 ->
> 217.196.100.63:20432
> I suspect it is a FALSE POSITIVE. Check the
> signature in your
> /etc/snort.conf and confirm that they only track
> shaft by port number and
> not by packet content. Then the sig will trigger on
> RESPONSE to a web
> request done from high-numbered port to port 80.
> 
> >TCP TTL:64 TOS:0x0 ID:18426 IpLen:20 DgmLen:48 DF
> >***A**S* Seq: 0x82327B22  Ack: 0xBC9B5FF7  Win:
> 0x60F4  TcpLen: 28
> >TCP Options (4) => NOP NOP SackOK MSS: 1460
> 
> >Where can i read something about these signatures.
> Thanks a lot.
> Hmm, if not on snort.org/snortdb, than nowhere.
> 
> Best,
> -- 
>   Anton A. Chuvakin, Ph.D., GCIA
>      http://www.chuvakin.org
>    http://www.info-secure.org
> 
> 
> 
> 
>
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