![]() You can also contact CISA’s 24/7 Operations Center: /report | | 88.The easiest way is to go to and click the “report a cyber issue” button right up top.Urgently report potential malicious activity to CISA or the FBI:.Prioritize mitigation of Known Exploited Vulnerabilities, including those outlined in our joint advisory on the top Common Vulnerabilities and Exposures (CVEs) used since 2020 by PRC cyber actors.Prioritize logging (e.g., command-line interface "CLI") and close and/or monitor high-risk ports (e.g., Remote Desktop Protocol, Server Message Block, File Transfer Protocol, Trivial File Transfer Protocol, Secure Shell, and Web Distributed Authoring and Versioning).Isolate privileged administrator actions and locations to a manageable subset of locations, where effective baselines of “where” and “who” can be established.Establish a security baseline of normal host behavior and user activity to detect anomalous activity on endpoints.In particular, CISA recommends that every organization take the following steps to reduce the risk of adversaries using LOTL techniques: LOTL has been growing in use over the years by state-sponsored threat actors, cyber criminals, and penetration testing teams. By using such native tools, this fileless attack makes it easier for cyber actors to sustain and advance attacks and evade detection from security teams. This Advisory focuses on a tactic called Living off the land, or LOTL, a set of techniques used by cyber actors to maintain anonymity within IT infrastructures by abusing tools already present in the environment such as PowerShell, Windows Management Instrumentation (WMI), and file transfer protocol (FTP) clients. Review the Joint Cybersecurity Advisory on People's Republic of China State-Sponsored Cyber Actor Living off the Land to Evade Detection.As a starting point, organizations should: government and around the world provide timely and actionable information about the PRC cyber threat to help organizations prioritize the most effective cybersecurity measures. In this context, every organization must take urgent action to understand and address known tactics, techniques, and procedures (TTPs) used by PRC cyber actors – including efforts to detect and prevent intrusions and respond to and recover from incidents, particularly by investing in the operational resilience of essential services. ![]() ![]() China almost certainly is capable of launching cyber attacks that could disrupt critical infrastructure services within the United States, including against oil and gas pipelines, and rail systems." China’s cyber pursuits and its industry’s export of related technologies increase the threats of aggressive cyber operations against the U.S. ![]() The Office of the Director of National Intelligence’s 2023 Annual Threat Assessment makes clear the cyber threat posed by the People’s Republic of China (PRC): “China probably currently represents the broadest, most active, and persistent cyber espionage threat to U.S. ![]()
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