full-disclosure - possible MS03-026 worm?

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From: tcpdumb at pentiumbuster.homelinux.com (tcpdumb)
Subject: possible MS03-026 worm?

On Sat, 2 Aug 2003 11:58:00 -0500
"mobly99" <dhopper@...ritech.net> wrote:

> Seems to be a possible worm based on the RPC/DCOM exploit making the
> rounds?

Definetly. Depending on the logfiles from our Firewall at work, there must be something out there. Infected machines found at:

156.34.222.0/24 
194.96.90.0/24
196.30.232.0/24
200.0.0.0/8
202.0.0.0/8

and so on. Their traffic is about 50-75% of a day's traffic. Fortunately without any damage to our systems. The worm seems to check hosts with a funny ryhtm within a Subnet:

IP=123.123.123.1

$IP+5
	$IP+1
$IP+4
	$IP+2
$IP+3
	$IP+3
$IP+2
	$IP+4
$IP+1
	$IP+5
...
	...

Dunno why but I found it out reading the 24h output of our Firewall. The coder must be stupid/[totally stoned] or simply made a mistake coding the loops for scanning.
Strange thing,

	Lukas

> puts these files in %systemdrive%
> rpc.exe
> rpctest.exe
> tftpd.exe
> worm.exe
> lolx.exe
> 
> also in %windir%\system32 
> lolx.exe 
> dcomx.exe
> 
> rpc.exe and dcomx.exe appear in the running tasks. 
> 
> 
> I pulled samples of them and submitted to SARC.
> 
> 
> -Dave
>