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HYDERABAD: Symantec Corporation, an Internet security solutions provider, has spotted the first known 64-bit malicious threat W64.Rugrat.3344. Described as a proof-of-concept virus, this has not yet spread in the wild. However, it is the first known threat to attack 64-bit Windows.

The threat does not infect 32-bit executables and will not run on 32-bit Windows platforms. It only targets Win64-bit systems. W64.Rugrat.3344 written in IA64 (Intel Architecture) assembly code, it infects IA64 executable files excluding .dll files and infects files that are in the same folder as the virus as well as all files within the subfolders.

According to a Symantec statement, there is no broad penetration of 64-bit systems now as most home and business systems deployed today are running on 32-bit platforms and are not affected by this threat. W64.Rugrat.3344 is a Level 1 threat (Level 5 being the most severe).

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