What is "ghostnet"

GhostNet is the name given by researchers at the Information Warfare Monitor to a large-scale cyber spying operation discovered in March 2009. The operation is likely associated with an Advanced Persistent Threat. Its command and control infrastructure is based mainly in the People's Republic of China and has infiltrated high-value political, economic and media locations in 103 countries. Computer systems belonging to embassies, foreign ministries and other government offices, and the Dalai Lama's Tibetan exile centers in India, London and New York City were compromised.