Macs face 'virus' threat

Users of the Mac OS X system are for the first time the target of a malicious code, security experts warn.

The virus, named OSX/Leap-A, spreads via the instant messaging iChat program as a file called latestpics.tgz and attempts to spread to contacts on an infected user's buddy list.

According to Sophos, when the latestpics.tgz file is opened it disguises itself with a JPEG graphic icon to fool people into thinking it is harmless.

Experts said that they are still analysing the virus and its effect as there have been viruses for earlier versions of Macintosh but this is the first one ever for Mac OS X.

Sophos claims that the recent increase in popularity of Mac computers might be the reason for this attack.

Until now, most virus writers were targeting Windows users, but the Mac virus maybe an attempt by someone to prove it could be done, the security company warned.

Graham Cluley, senior technology consultant for Sophos, said: "Some owners of Mac computers have held the belief that Mac OS X is incapable of harbouring computer viruses, but Leap-A will leave them shell-shocked, as it shows that the malware threat on Mac OS X is real.

“Apple Mac users need to be just as careful running unknown or unsolicited code on their computers as their friends and colleagues running Windows," Cluley added.

Security experts advice Mac users to ensure they run up-to-date anti-virus software, but admit there are fewer anti-virus products for Macintosh than Windows.

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