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Network Security Nessus-Users
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Hydra & Portscanning XP

Subject: Hydra & Portscanning XP
Date: Mon, 25 Apr 2005 11:59:39 +0100
I am able to make Hydra work from the command line to find
login/password pairs via SMB. I cannot make it do the same when called
from Nessus v2.2.2 however. (I found that the Nessus safe checks option
has to be disabled to run Hydra - I now wonder how significant is the
increased risk of disruption that other test could cause simply in order
to call Hydra). Nessusd.messages reports hydra_smb.nasl starting and
finishing in 0.164 second which seems too quick. I have Hydra timeout
set to 30 seconds and have tried parallel tasks set to 16 and 1. I have
seen mention of Hydra not working reliably with Nessus back in September
2003
http://mail.nessus.org/pipermail/nessus/2003-September/msg00029.html.
Does anyone know if there has been advance on that?

-- change of subject ---

I have found that portscanning Widows XP SP2 systems that have the
built-in firewall enabled is extremely slow using both Nessus built-in
portscanner and Nmap when they are in default configurations. It is
possible to make Nmap return results in a reasonable time without
seeming to loose accuracy by setting --max_rtt_timeout to e.g. 50
instead of the default 9000. I'm not aware of such an option for the
Nessus porscanner - is there?

--
Carl Nelson
Distributed Systems Support Section, Computer Centre, University of
Leicester, Leicester, LE1 7RH, U.K.
Tel: +44 (0)116 252 2060, Fax: +44 (0)116 252 5027
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