Microsoft says it has cracked open the notorious FinFisher government spyware to design new ways to detect it and protect Windows and Office users.
FinFisher is sold to law-enforcement agencies around the world and its maker, European firm Gamma Group, has been criticized for selling it to repressive regimes.
Last year, researchers at FireEye discovered FinFisher being distributed in Word documents loaded with an attack for an Office zero-day targeting Russian-speaking victims.
