APT-10 is a Chinese nation-state threat actor that in recent years has been targeting Japanese IT & Instrastructure organizations using a sophisticated backdoor malware known as LODEINFO. Recently, Jin Ito & Loic Castel, researchers from Cybereason's IR Team, uncovered a new tool used by the group: NOOPDOOR, which incorporates highly sophisticated persistence mechanisms, allowing APT-10 to evade detection and remain inside enterprise networks for two or even three years.