RE: Concept Virus(CV) V.5 - Advisory and Quick analysis

["Robert Nieuwhof" <RNieuwhof () nos com>]

Have you indeed confirmed that the worm utilizes port 69? If so, how was
this confirmed and will you please share the criteria and results of your
confirmational testing?

Thanks,
Robert J. Nieuwhof, CNA, MCP
mailto:Rnieuwhof () nos com
Network Engineer
NOS Communications - Information Services

http://www.nos.com

Madness takes its toll. Please have exact change. 

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-----Original Message-----
From: Dave Sill [mailto:davids () socket net]
Sent: Tuesday, September 18, 2001 11:13 AM
To: Grady Fox
Cc: incidents () securityfocus com
Subject: Re: Concept Virus(CV) V.5 - Advisory and Quick analysis


We've blocked 69/udp at our internal and border routers both incoming and 
outgoing.  Be careful with your private networks.  Our tech support 
department contracted this bug by opening a web page of an infected customer

in response to a complaint about performance.

Dave Sill
Server Admin
Socket Internet Services
davids () socket net

On Tuesday 18 September 2001 15:10, you wrote:
> YES
>
> --- Dave Sill <davids () socket net> wrote:
> > You say that the worm gets a payload by tftp...  Is
> > it using port 69?
> >
> > Thanks,
> >
> > Dave Sill
> > Server Admin
> > Socket Internet Services
> > davids () socket net
> >
> > Is the worm
> >
> > On Tuesday 18 September 2001 10:47, you wrote:
> > > Hi all!
> > >
> > >
> > > We've all just been hit by a VERY aggressive
> >
> > worm/virus.
> >
> > > Quick analysis indicates that it propagates itself
> >
> > in
> >
> > > a number of different ways:
> > >
> > > Through use of IIS UNICODE direcory traversal
> >
> > coupled
> >
> > > with the recent IIS .dll privilege escalation
> >
> > attack.
> >
> > > It uses SMB/CIFS and TFTP to get the worm payload.
> > >
> > > Through MAPI mails (probably to all of
> >
> > addressbook).
> >
> > > Other ways of spreading may be possible, but we
> >
> > haven't
> >
> > > yet had the time to properly analyse the
> >
> > worm/virus.
> >
> > > It seems to share "c:\" via SMB/CIFS as "c$" and
> > > the worm/virus also adds the "Guest" user and
> >
> > "Guests"
> >
> > > group to the local "Administrators" group....
> > >
> > >
> > > Interesting strings in binary:
> > >
> > > Concept Virus(CV) V.5, Copyright(C)2001  R.P.China
>
> SYSTEM\CurrentControlSet\Services\lanmanserver\Shares\Security
>
> > > share c$=c:\
> > > user guest ""
> > > localgroup Administrators guest /add
> > > localgroup Guests guest /add
> > > user guest /active
> > > open
> > > user guest /add
> > > net
> > >
> > >
> > > More info as we come upon it.....
> > >
> > > /olle
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