Security Incidents mailing list archives

RE: I think I've been hacked...please help!


From: H C <keydet89 () yahoo com>
Date: Tue, 9 Apr 2002 03:44:30 -0700 (PDT)

Jaime,

1.  Have you gathered detailed process information,
such as using pslist.exe and listdlls.exe (from
SysInternals), and pulist.exe (from the RK)?

2.  Have you run netstat?  Since you didn't specify
which operating systems are running, I'll point out
that only XP has the '-o' switch in netstat.

3.  Have you run fport.exe from Foundstone, mapping
the processes to open ports in netstat?

4.  Have you collected any file info...last access
times, etc?  Something like the following command is a
quick and dirty way of doing it:

c:\>dir /s /ta /od c:\*

5.  Have you collected or reviewed EventLogs (assuming
we're talking about NT/2K here)?

6.  Have you done any network-based packet captures?

It seems to me that you might have a pretty
significant incident on your hands...but you really
haven't given us a whole lot of information to work
with.  For example, are these machines using publicly
routable addresses?  What's the patch level?  What
operating system is being used?  What major apps are
running (IIS, FTP, etc)?

Of course, this may just be some "goodies" this other
admin friend of yours (the "techie") left behind.

I teach a course that walks admins such as yourself
through how to deal with/handle situations like this. 
To be honest, if you have the time, I think these
machines would be very interesting to work
with...observe the activity on the systems, as well as
the network, and see what these "bad guys" are up to.

--- "Arnold, Jamie" <harnold () binghamton edu> wrote:
All:

I have several machines that are using excessive
bandwidth.  Upon
inspection, I find multiple connections to servers
with names like
irc.badguuy.com, etc... On 6667.  Incoming
connections are random although
1067 seems to be a common one.  I have 4 instances
of cmd.exe running and 2
of win.exe  While it looks like Egghead, the reg
entries aren't there nor
the directories/files.  These machines all had an
account ID of Microsoft
with admin privs on them.  They don't connect to a
domain and were setup by
the department "tech" person who left them wide
open.  What is confusing to
me is that one of them uses our Exchange server
which is protected by
Antigen (and I pull nearly every extension known to
man) and McAffee on the
desktop.  I can't find anything that matches this.
Anyone have any insight?

Thanks

J


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