[fireeye] “Operation Clandestine Fox” Now Attacking Windows XP Using Recently Discovered IE Vulnerability

On April 26th, FireEye Research Labs notified the public of a new IE zero-day exploit being used in “Operation Clandestine Fox.” The initial attack targeted users of IE versions 9, 10, and 11 on Windows 7 and 8. Despite attackers only targeting those versions of Microsoft IE and Windows OS, the vulnerability actually impacts all versions of IE from 6 through 11.