The National Cybersecurity and Communications Integration Center (NCCIC) has become aware of an emerging sophisticated campaign, occurring since at least May 2016, that uses multiple malware implants. Initial victims have been identified in several sectors, including Information Technology, Energy, Healthcare and Public Health, Communications, and Critical Manufacturing.

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According to preliminary analysis, threat actors appear to be leveraging stolen administrative credentials (local and domain) and certificates, along with placing sophisticated malware implants on critical systems. Some of the campaign victims have been IT service providers, where credential compromises could potentially be leveraged to access customer environments. Google Sketchup Pro 2013 Keygen Downloader. Depending on the defensive mitigations in place, the threat actor could possibly gain full access to networks and data in a way that appears legitimate to existing monitoring tools. Although this activity is still under investigation, NCCIC is sharing this information to provide organizations information for the detection of potential compromises within their organizations. NCCIC will update this document as information becomes available. For a downloadable copy of this report and listings of IOCs, see: • • • To report activity related to this Incident Report Alert, please contact NCCIC at or 1-888-282-0870.

Risk Evaluation NCCIC Cyber Incident Scoring System (NCISS) Rating Priority Level (Color) Yellow (Medium) A medium priority incident may affect public health or safety, national security, economic security, foreign relations, civil liberties, or public confidence. Details While NCCIC continues to work with a variety of victims across different sectors, the adversaries in this campaign continue to affect several IT service providers. To achieve operational efficiencies and effectiveness, many IT service providers often leverage common core infrastructure that should be logically isolated to support multiple clients. Intrusions into these providers create opportunities for the adversary to leverage stolen credentials to access customer environments within the provider network. Figure 1: Structure of a traditional business network and an IT service provider network Technical Analysis The threat actors in this campaign have been observed employing a variety of tactics, techniques, and procedures (TTPs). The actors use malware implants to acquire legitimate credentials then leverage those credentials to pivot throughout the local environment.

NCCIC is aware of several compromises involving the exploitation of system administrators’ credentials to access trusted domains as well as the malicious use of certificates. Additionally, the adversary makes heavy use of PowerShell and the open source PowerSploit tool to enable assessment, reconnaissance, and lateral movement. Command and Control (C2) primarily occurs using RC4 cipher communications over port 443 to domains that change IP addresses. Many of these domains spoof legitimate sites and content, with a particular focus on spoofing Windows update sites. Most of the known domains leverage dynamic DNS services, and this pattern adds to the complexity of tracking this activity. Listings of observed domains are found in this document’s associated STIX package and.xlsx file. The indicators should be used to observe potential malicious activity on your network.