Techspective
Recently patched Internet Explorer flaw added to Angler exploit kit
SecurityWeek
The Jscript9 memory corruption vulnerability (CVE-2015-2419) affecting Internet Explorer 11 was identified by Vectra Threat Labs while analyzing files leaked as a result of the data breach at Italian surveillance software maker Hacking Team. The flaw was identified from an email in which someone offered to sell the exploit to the Hacking Team.