The precise circumstances are unclear, but it's becoming obvious that MSE in some cases detects a DOS/Alureon.J infection where none exists
It's looking more and more likely that Microsoft Security Essentials (MSE) is warning about a TrojanDOS/Alureon.J infection when none exists.
On Sept. 16, Microsoft Answers Forum poster
ElBanko said that he couldn't remove an MSE-identified infection of TrojanDOS/Alureon.J, in spite of repeated scans and removals from multiple packages. According to ElBanko, who appears to be quite knowledgeable:
I have run TDSS, Combofix, JunkwareRemovalTool (JRT), MS Malicious Software Removal tool, AdwCleaner, HitManPro, Malwarebytes (MBAM) and searched the registry for any related entries in a manual attempt to delete files related to it - nothing found… MSE is the only product that even identifies it but it does not remove it!
On Sept. 23, MVP Le Boule reported:
The Microsoft team that is responsible for MSE is aware of the reports of "possible" false detections of Dos/Alureon J and are working to identify and resolve any issue involving the MSE program. Anyone seeing this issue should monitor this thread.
