According to VN-CERT, these codes are extremely dangerous as they have the ability to steal information and destroy computer systems.
To minimise the risk of being attacked, VN-CERT has required specialist units for information technology in ministries and agencies, the Department of Information and Communications in the localities and financial and banking institutions to supervise and block the three sites; scan their systems and delete files and folders that contain malicious code.; investigate the MD5 and SHA-1 codes of the files and the way to delete files containing malicious code.
You can visit the website of Viet Nam Computer Emergency Response Teams at www.vncert.gov.vn for guidance to handle malicious codes.