From zdnet.com
Hackers exploited a Trend Micro OfficeScan zero-day to plant malicious files on Mitsubishi Electric servers.
Chinese hackers have used a zero-day in the Trend Micro OfficeScan antivirus during their attacks on Mitsubishi Electric, ZDNet has learned from sources close to the investigation.
Trend Micro has now patched the vulnerability, but the company did not comment if the zero-day was used in other attacks beyond Mitsubishi Electric.