Microsoft Security Essentials may be throwing false positives for Trojan:DOS/Alureon.J infection. The problem has been reported to Microsoft MVPs on the Microsoft Answers Forum. The bleepingcomputer.com site overflows with similar complaints — some of which are, most certainly, not false positives. Is it a false positive or a deeper problem that MSE (and all the major antivirus scanners) can’t solve? Hard to tell, but it’s possible that Microsoft re-released a bad signature for DOS.J.”]