Interpretation: Ma Xin NH virus, a network security expert, doctor of Chinese Academy of Sciences and postdoctoral fellow in Tsinghua University, is a variant of grey pigeon virus. It steals private information through network communication and remote control, so that any call made by users can be called to a certain number or recorded and sent to a fixed mailbox. The virus not only infects mobile phones, but also may bring great hidden dangers to users' computers. When the virus runs, it will first copy itself into the system directory and set it as hidden, system and read-only. Then the virus will create a system service, starting with the system itself. It also creates a new IE process and sets it as hidden, and then inserts the virus itself into the process. By recording the user's keyboard operation in the background, the virus will steal user information and local system information and send them to hackers. In this way, the user's computer will be controlled remotely, and files can be deleted involuntarily, downloaded and uploaded remotely, and the registry can be modified. Suggestion: In order to prevent virus invasion, mobile phone users should not open strangers' short messages and multimedia messages in public, especially Bluetooth. Computer users should not open suspicious emails and suspicious websites; Many viruses are spread by using vulnerabilities, so we must patch the system in time; Install professional antivirus software to upgrade to the latest version, and open the real-time monitoring program; The administrator account of this machine has a complex password to prevent the virus from spreading through password guessing; Open the protection center and open all protection to prevent viruses from invading the computer through IE vulnerabilities.