Today, Microsoft released an out of band patch for a vulnerability concerning DCE/RPC that is being actively exploited by a Trojan.
We were busy today :D
Details on what we were busy with are available here: http://www.snort.org/vrt/advisories/vrt-rules-2008-10-23.html
More details on the Trojan are available here: http://www.microsoft.com/security/portal/Entry.aspx?Name=TrojanSpy:Win32/Gimmiv.A
Here's a link to the Microsoft bulletin: http://www.microsoft.com/technet/security/bulletin/ms08-067.mspx