Re: Scans of 21536

[smarkacz <[EMAIL PROTECTED]>]

Simple Nomad <[EMAIL PROTECTED]> wrote:
> I think that if I were some smart scanning dude or dudette out there, and
> a scanning pattern was "identified" as a "misconfigured device", I'd
> probably make sure my port scan duplicated this type of traffic.

That's pretty obvious. But in case of 18245>21536 packets, there's
almost no gain.. of course, you can send such packets to every IP in
my network and get me alarmed when you hit a machine which doesn't run
an HTTP server. Or you can just use them to OS-fingerprint HTTP
servers my firewall protects. But then - why don't you use port 80 for
your scans? It *is* open and probably you can also know if my firewall
filters are stateful or not. What more can you get from port 21536
scans?

> If I wanted to be REALLY evil, I could do the following:
> 1. Scan large sections of the Internet with a forged source address and
> several decoys with nmap.
> 2. Wait for someone on this list to say something about it, or optionally
> say something about it myself.
> 3. I post a message from my day job stating "oh I spoke to blahblahblah
> about this and it is a misconfigured device/reported to the ISP/whatever".

Nice idea. :)

> As a security-conscious kind of guy, I am surprised by the tone of this
> list which seems to trust every message posted to it. Certainly I am not
> the first person to think of this type of thing. There has always been the
> argument on Bugtraq that the bad guys read Bugtraq, I think one should
> assume the same here.

OK, nobody has to trust me. Or anyone. But it doesn't mean you can
assume anyone posting here to be a bad guy. Some people would lie
here, some'd just be wrong. But you know all this stuff, I won't
repeat. Just verify what you read here before trusting it.
-- 
*** smarkacz ([EMAIL PROTECTED])  --  Jacek P. Szyma&nacute;ski
No jasne, jak cz&lstrok;owiek sepleni to zadowoli si&eogon; i linuksem. To w&lstrok;a&sacute;nie
taki niedorobiony system co zauwa&zdot;a dok&lstrok;adnie ka&zdot;dy poza linuksiarzami.
                                            -- Piotr Trzcionkowski