Well, first Microsoft Tuesday after DefCon and as punishment, there are 9 advisories to note with 8 of them being suitable for detection by an IPS/IDS.

Microsoft Security Advisory (MS09-036):
Microsoft Internet Information Server (IIS) contains a programming error that may allow a remote attacker to cause a Denial of Service (DoS) against a vulnerable system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15851.

Microsoft Security Advisory (MS09-037):
The Microsoft Active Template Library contains programming errors that may allow a remote attacker to execute code on a vulnerable system.

Previously released rules to detect attacks targeting this vulnerability are included in this release with updated references, and are identified with GID 1, SIDs 15638 through 15671.

Microsoft Security Advisory (MS09-038):
The Microsoft Windows AVIFile API contains a programming error that may allow a remote attacker to execute code on a vulnerable system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 15854 and 15857.

Microsoft Security Advisory (MS09-039):
The Microsoft Windows Internet Naming Service (WINS) contains a programming error that may allow a remote attacker to execute code on a vulnerable system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 15848 and 15849.

Microsoft Security Advisory (MS09-041):
The Microsoft Windows Workstation Service contains a programming error that may allow a remote attacker to execute code on a vulnerable system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15860.

Microsoft Security Advisory (MS09-042):
The Microsoft Windows Telnet implementation suffers from a programming error that may allow a remote attacker to execute code on an affected system. The problem occurs due to the improper processing of NTLM credentials.

A Rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15847.

Microsoft Security Advisory (MS09-043):
Microsoft Office Web Components contain multiple vulnerabilities that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 15685 through 15692 and GID 1, SIDs 15852, 15853, 15855 and 15856.

Previously released rules to detect attacks targeting this vulnerability are included in this release with updated references, and are identified with GID 1, SIDs 7872 and 7873.

Microsoft Security Advisory (MS09-044):
Microsoft Remote Desktop Connection contains programming errors that may allow a remote attacker to execute code on a vulnerable system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 15850 and 15861 through 15864.

As always, a link to snort.org http://www.snort.org/vrt/advisories/2009/08/11/vrt-rules-2009-08-11.html