Sourcefire VRT Certified Snort Rules Update for 12/11/2012. In this release we introduced 28 new rules and made modifications to 131 additional rules. There were no changes made to the snort.conf in this release. The VRT has added and modified multiple rules in the app-detect, browser-ie, browser plugin, exploit, exploit-kit, file-executable and file-flash. Make sure and stay up to date to catch the most emerging threats!”]
Source: https://blog.snort.org/2012/12/sourcefire-vrt-certified-snort-rules_11.html