A year ago today, Microsoft issued a security advisory about a zero-day vulnerability in Windows Vista and Windows Server 2008. The advisory was issued about the SMB2 vulnerability in the Windows Vista, 2008 operating systems. Chinese malware brokers were spotted selling a $37 tool kit that allowed anyone to exploit a newly-disclosed RPC-DCOM vulnerability. Read the full story here: http://www.thelastwatchdog.com/watchdog/2008/windows-vista-2008-vulnerable-vulnerability.
Source: https://threatpost.com/stage-set-vista-worm-smb2-flaw-091009/73019/