"Windows 7 RC, which Microsoft Corp. will officialy launch
tomorrow, leaked two weeks ago, with copies first appearing on
BitTorrent tracking sites on April 24.
"Some of the pirated builds include a Trojan horse, numerous
users said in message forums and in comments on BitTorrent sites
such as Mininova.org.
""Just a warning for anyone downloading the new RC builds of
windows 7. Quiet [sic] a lot of the downloads have a trojan
inbedded [sic] in the setup EXE," said someone identified as Frank
Fontaine on a Neowin.net discussion thread. "The Setup EXE is
actually a container, it appears to be a self-extracting EXE. There
are 2 files inside, Setup.exe and codec.exe."