Greetings to the malware gurus! I'm visiting the in-laws for Christmas, and as usual they have a to-do list for me on their Windows machines (despite being a Linux and Mac guy myself). In particular, an older Vista laptop has been misbehaving for quite a while. Sudden reboots/BSODs happen occasionally, and there's quite a bit of disk and CPU activity even when no applications are active. Three nights ago, before I arrived, the in-laws report that they were awoken around 3 am by the laptop making "train and conductor noises". Two evenings ago, just after I arrived, I witnessed another random audio event: the laptop loudly played roughly a minute of what sounded like a radio station. Both times, the laptop had been sitting idle, with no obvious applications as the culprits. Some Googling suggests this might be a particularly insidious bootkit, so I figured it was time to ask the big guns for help. I've followed the 5-step preliminary process, with logs to follow. As you can see, MBAM found quite a few infected files (despite the in-laws swearing up and down that they never click on pop-up ads, never open attachments, etc.). I suspect from what I've read, though, that MBAM's cleaning is just the beginning.