I got a file from LEJ last night called RMKEYS.EXE, with the message being titled "!"#$" and no text in the message. I ran InnoculateIT on the file (I updated on Jul 20) and it didn't find anything. I still didn't open it, because I couldn't see LEJ sending something without writing something about it.

This may be too new for your anti-virus software to pick up. Time to rely on your "wetware" (brain).

Just like any other social disease, the person who's infected usually doesn't know they're infected until it's too late. Nobody sends these things on purpose - they're designed so there aren't many "symptoms" until the virus had spread around a bit. No blame.