There was a post by The Flaming Brain which had the above Subject line, an attachment 2.pdf and no other content.
I downloaded the PDF and didn't open it but sent it to VirusTotal for checking. The result was that 4 A-V engines out of 43 found a suspicious script:
DrWeb SCRIPT.Virus 20121016
McAfee-GW-Edition Heuristic.BehavesLike.PDF.Exploit-CRT.I 20121016
Sophos Troj/PDFJs-ABA 20121016
TrendMicro HEUR_PDFEXP.G 20121016
These may be false positives, but if you have downloaded and opened that file, I suggest you run an antivirus check on your machine.
I deleted the post and put The Flaming Brain on moderation for now (and apologize if VirusTotal got this wrong). It's best to be safe.
Argey