I have a server running W2008 R2 64bit, patched.
in task manager are a few hundred rundll32.exe, and in scheduled tasks are hundreds of tasks named AT1 to AT999
tasks point to exe withe funky names kasdfg asjdf$sjd etc...
I have Macafee running and patched
Ran Malware Bytes
Ran Malicious software removal tool
all come up clean
I can delete the tasks, they come back