Strange MSN 2.b Bot Behavior.Hacker?

Strange MSN 2.b Bot Behavior

[Lain_se]

Over the past few days I have seen some very strange behavior from the new MSN/2.0b Bot. Strange in that its requesting my robots.txt file, then not following it...but by not following I mean it (or someone) is simply randomly generating requests for directories and files that simply DO NOT EXIST! If I did not know better I would simply see this as a a person trying to infiltrate my site. Here are some log files below. The IPs are definitely MSN, but I have never seen "bots" randomly generate such nonsense with the exception of Google who sometimes requests a page to see if there is a 404....but nothing like this.

Is my site under attack by a comprised MSN server?

[Mon Apr 13 04:55:51 2009] [error]
[client 65.55.106.234] File does not exist: /usr/local/apache/vhosts/httpdocs/10betClient/default.aspx

[Mon Apr 13 05:13:16 2009] [error]
[client 65.55.106.179] File does not exist: /usr/local/apache/vhosts/httpdocs/f.html

[Mon Apr 13 06:42:05 2009] [error]
[client 65.55.106.239] File does not exist:
/usr/local/apache/httpdocs/forum/login.php

[Mon Apr 13 06:42:05 2009] [error]
[client 65.55.106.239] File does not exist:
/usr/local/apache/httpdocs/forum/login.php

[Mon Apr 13 06:48:22 2009] [error]
[client 65.55.106.179] File does not exist:
/usr/local/apache/httpdocs/ShaunPics/Morocco12th29thJan2009/img_1419.html

[Mon Apr 13 07:13:54 2009] [error]
[client 65.55.106.133] File does not exist:
/usr/local/apache/httpdocs/2008/AtomicNuclearProperties/MUON_ELOSS_TABLES/muonloss_254.dat

[Mon Apr 13 07:24:53 2009] [error]
[client 65.55.106.118] File does not exist: /usr/local/apache/httpdocs/errori/404.php

[wilderness]

This is mentioned in another recent thread [webmasterworld.com]

There's also an earlier thread [webmasterworld.com]