[Snort-users] WEB-IIS cmd.exe access

Brown, Bobby (US - Hermitage) bobbrown at ...5777...
Thu Oct 10 08:13:17 EDT 2002


This is a constant scanning attempt to see if the server can be exploitted.
If the directory listing comes back to the user, the server will accept
cmd.exe commands and exploit will continue.

it is looking for Nimda type exploited machines by looking for the IIS "c"
virtual root.

Bobby



-----Original Message-----
From: Alwin Raymundo [mailto:alrayworld at ...131...]
Sent: Monday, October 07, 2002 8:57 AM
To: user snort
Subject: [Snort-users] WEB-IIS cmd.exe access


Hi Everybody,

This morning when I review some of the attacked on our
ISS server, I found this

HEAD /c/winnt/system32/cmd.exe?/c+dir+c:\ HTTP/1.0\r\n
Host: xxx.xxx.xx.297\

and so many more.

My question is does my ISS server has been exploited?
because most of the time.  I always see "Connection
Closed" so I dont bother but this time I'm little bit
worried.

I check also the log files on the ISS server but the
IP address of the attacker was not there.

All service pack has been installed on this machine I
I think).  I just want to be sure if my machine is not
exploited.

anyone can shed light on this matter would be highly
aprecciated.

Thanks in Advance.



=====
Alwin Raymundo

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