New Scientist An ancient computer virus has infiltrated the latest fast spreading email scourge to create a nasty "double-infected" virus.
Anti-virus software makers say some versions of the widespread computer virus Klez.h hide a mutation of a very destructive virus first seen in 1998 and known as Chernobyl or CIH. The Chernobyl virus variant automatically infects files and programs files on computers running Microsoft Windows.