A computer worm that China warned Internet users against is an updated version of the Panda Burning Incense, which infected millions of PCs three years ago, according to McAfee.

• 病毒厂商迈克菲称，数年前感染几百万台电脑的熊猫烧香病毒已变种升级。中国有关部门已就此向网民发出警报。