Andrew Welch: New Mac OS X Trojan/Virus Alert

Andrew Welch (El Presidente of Ambrosia Software) has analyzed and disassembled a new Mac OS X Trojan horse:

A file called “latestpics.tgz” was posted on a Mac rumors web site http://www.macrumors.com/ , claiming to be pictures of “MacOS X Leopard” (an upcoming version of MacOS X, aka “MacOS X 10.5”). It is actually a Trojan (or arguably, a very non-virulent virus). We’ll call it “Oompa-Loompa” (aka “OSX/Oomp-A”) for reasons that will become obvious.

Coincidentally — or perhaps not? — its vector for propagation is an input manager it installs into /Library/InputManagers/ if you’re foolish enough to be running as the root user or ~/Library/InputManagers/ otherwise.

Thursday, 16 February 2006

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