Trend Micro is aware of and has been closely monitoring the latest ransomware outbreak that has affected several organizations around the world – which is being commonly referred to as WCRY or WannaCry.

Trend Micro Products and Protection

First and foremost, since this attack appears to exploit a known Microsoft vulnerability – customers may want to consider disabling SMB in their environments if possible – either via GPO or using instructions provided by Microsoft. In addition, customers are strongly encouraged to ensure that they have all of the latest patches applied to their operating systems – especially the ones related to MS17-010.

For protection, Trend Micro recommends a layered security approach of endpoint, email, server, gateway and network security to ensure that all potential entry and compromise points have protection and has some solutions that already provide some level of protection against these new threats:

  • Updated Configuration and Next Generation Technology – Trend Micro customers using the latest versions of OfficeScan and Worry-Free Business Security should ensure that they have both Predictive Machine Learning (OfficeScan XG, Worry-Free Services) and all relevant Ransomware protection features enabled in their product. The following article contains information on optimal configurations to help protect against ransomware:
  • Smart Scan Agent Pattern and Official Pattern Release: Trend Micro has added known variant and component detections into the following patterns for all products that utilizes these patterns:
    • Smart Scan Agent Pattern – 13.401.00
    • Official Pattern Release (conventional) – 13.401.00
    Please note that these patterns are the minimum recommended ones that contain protection for this threat — however, due to new components and variants being discovered it is important that customers ALWAYS obtain the latest pattern files to ensure up-to-date protection.
  • Trend Micro Web Reputation Services (WRS) has added coverage for known Command and Control (C&C) servers.
  • Trend Micro Deep Security and Vulnerability Protection (formerly the IDF plug-in for OfficeScan) customers with the latest rules have an updated layer of protection for multiple Windows operating systems, including some that have reached end-of-support (XP, 2000, 2003). Specifically, Trend Micro released the following rule for proactive protection:
    • IPS Rules 1008224, 1008228, 1008225, 1008227 – Includes coverage for MS17-010 and some specific protection against Windows SMB remote code execution vulnerabilities
  • Trend Micro Deep Discovery Inspector customers with the latest rules also have an additional layer of protection against the vulnerabilities associated with the exploit. Specifically, Trend Micro has released the following official rule for proactive protection:
    • DDI Rule 2383: CVE-2017-0144 – Remote Code Execution – SMB (Request)
  • Trend Micro TippingPoint customers with the following filters have updated protection:
    • Filters 5614, 27433, 27711, 27935, 27928 – Includes coverage for MS17-010 and some specific protection against Windows SMB remote code execution vulnerabilities and attacks
    • ThreatDV Filter 30623 – helps to mitigate outbound C2 communication
    • Policy Filter 11403 – provides additional protection against suspicious SMB fragmentation
  • Trend Micro Home Network Security customers with the latest rules also have protection:
    • Rule 1133635: SMB Microsoft MS17-010 SMB Remote Code Execution -1
    • Rule 1133636: SMB Microsoft MS17-010 SMB Remote Code Execution -2

Trend Micro always highly recommends that vendor critical patches are applied as soon as possible upon release. Customers and partners who may need some additional information or have questions are encouraged to contact their authorized Trend Micro technical support representative for further assistance.