RE: [UPDATE] ping floods

["Drew Copley" <dcopley () eeye com>]

> -----Original Message-----
> From: full-disclosure-admin () lists netsys com 
> [mailto:full-disclosure-admin () lists netsys com] On Behalf Of benjurry
> Sent: Monday, August 18, 2003 10:09 AM
> To: Sam Pointer; full-disclosure () lists netsys com
> Subject: Re: [Full-disclosure] [UPDATE] ping floods
>
>
> This worn written by VC++6.0 and compressed by UPX. Its size 
> is 10240 bytes. The worm's aim is to remove the msblast anf 
> patch the system,which infects by RPC DCOM and WebDEV. When 
> it go into the system ,it copy 
> %systemroot%\system32\dllcache\tftpd.exe to 
> %systemroot%\system32\wins\svchost.exe ,then create the 
> service named RPCTftpd ,and its Display is ""Network 
> Connections Sharing". And then It copy himself to 
> %systemroot%\system32\wins\dllhost.exe ,then create the 
> service named RpcPath . 3rd,the worm will check the process 
> "msblast" and remove it ,then download the patch form the M$ 
> according diffrent language version,and patch system with 
> parameter "-n -o -z -q". Then it scan the subnet with ICMP 
> filled with ,whose type is "echo" and size is 92 bytes ,so 
> there are large volumes of ICMP traffic in network .when the 
> worm find a host ,it will try to infect with RPC DCOM and 
> Webdev, If sucess it will listen a TCP port less than 1000 to 
> send the file.If the year is 2004,then it will remove 
> itself.So the easiest way to remove is adjust your time.
>
> It seems it is a "good " worm to clean msblast:)

Except for the fact that it causes some systems to go into the infinite
reboot loop and it is causing ping floods. 

Whether or not it properly downloads the right patches or close the
command shell it opens... Or whatever other bugs it has... Have not been
shown, yet.

It is not too worrisome, however, as the blaster worm already got a vast
swath of users to finally upgrade.


> benjurry
>
> ----- Original Message ----- 
> From: "Sam Pointer" <sam.pointer () hpdsoftware com>
> To: "'Abraham, Antony (Cognizant)'" 
> <Antony () blr cognizant com>; <B3r3n () argosnet com>; 
> <full-disclosure () lists netsys com>
> Sent: Tuesday, August 19, 2003 12:15 AM
> Subject: RE: [Full-disclosure] [UPDATE] ping floods
>
>
> > Antony Abraham wrote:
> > > http://vil.nai.com/vil/content/v_100559.htm
> > >
> > > New RPC worm which will generate lot of ICMP traffic.
> >
> > Well I guess it would appear from this portion of NAI's 
> analysis that 
> > someone was listening to the thread on this list about writing an 
> > anti-blaster worm:
> >
> > "The worm carries links to various patches for the MS03-026 
> > vulnerability: ... The worm attempts to download and install one of 
> > these patches on the victim machine."
> >
> >
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