In September Microsoft published information about a new Internet Explorer vulnerability CVE-2013-3893. The vulnerability affects IE versions 6 through 11 for platforms from Windows XP through Windows 8.1. In late September, we discovered an exploit for the vulnerability. A modification of the exploit was used in targeted attacks against a number of high-profile organizations in Japan. We have the following information on the servers from which the exploits payload has been downloaded: The following requests are sent from the Lab-DropperWin32.”]
Source: https://securelist.com/targeted-exploit-for-cve-2013-3893/57326/