Penetration Testing mailing list archives
Re: Strange service on Port 5656
From: H Carvey <keydet89 () yahoo com>
Date: 17 Apr 2003 14:08:37 -0000
In-Reply-To: <200304162335.02476.Leusent () link-net org> Craig,
When I enter something at this prompt the connection is closed immediately.That response is clearly characteristic of rootkit
backdoors. Can you elaborate? I'm more familiar w/ Windows systems, but given what little information has been provided, I'm wondering what it is that you're seeing that leads to this conclusion.
Nessus detects this service as time server, can
anyone confirm/ deny that?
I have never heard of a time daemon using this port
for anything. If the
banner it yields resembles that of a time server, it
may cause nessus to
report it as such. The fact that it does doesn't
really prove anything, as it
is also a common tactic to make a rootkit yield a
known banner in order to subvert suspicion. This statement leads me to ask my question again...how is it that you know, without more information, that this system has been compromised? I would have suggested further activities, such as running lsof or fuser on the system, to find the path/name of the executable image that's bound to that port. Thanks, Harlan --------------------------------------------------------------------------- Attend Black Hat Briefings & Training Europe, May 12-15 in Amsterdam, the world's premier event for IT and network security experts. The two-day Training features 6 hand-on courses on May 12-13 taught by professionals. The two-day Briefings on May 14-15 features 24 top speakers with no vendor sales pitches. Deadline for the best rates is April 25. Register today to ensure your place. http://www.securityfocus.com/BlackHat-pen-test ----------------------------------------------------------------------------
Current thread:
- Strange service on Port 5656 B F (Apr 16)
- Re: Strange service on Port 5656 Craig Holmes (Apr 16)
- Re: Strange service on Port 5656 Neal K. Groothuis (Apr 16)
- <Possible follow-ups>
- Re: Strange service on Port 5656 H Carvey (Apr 17)