Polymorphic Simile.D Virus Affects Linux And Windows Systems

{Win32,Linux}/Simile.D is a very complex virus that uses entry-point obscuring, metamorphism, and polymorphic decryption. It is the first known polymorphic metamorphic virus to infect under both Windows and Linux. The virus contains no destructive payload, but infected files may display messages . . . {Win32,Linux}/Simile.D is a very complex virus that uses entry-point obscuring, metamorphism, and polymorphic decryption. It is the first known polymorphic metamorphic virus to infect under both Windows and Linux. The virus contains no destructive payload, but infected files may display messages on certain dates. It is the fourth variant of the Simile family. This variant introduces a new infection mechanism on Intel Linux plaforms, infecting 32-bit ELF files (a standard Unix binary format). The virus infects PE files as well as ELFs on both Linux and Win32 systems. So far Symantec has not received any submission of this virus from customers.

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