The Federal Bureau of Investigation, National Security Agency, and Cyber National Mission Force are releasing this joint cybersecurity advisory to alert organizations concerning China-linked cyber threat actors, who use the acronyms QTFY, QT, and QTCYBER for themselves and their tools and have developed malicious distributed platforms to compromise the networks of US and foreign organizations. The cyber actors’ products have enabled hackers to obfuscate their location and target systems in critical infrastructure sectors including defense industrial base (DIB), communications, government, and higher education. This advisory provides details on the actors’ activities; tactics, techniques, and procedures (TTPs); infrastructure details; and indicators of compromise (IOCs). The information is derived from incident response and investigative techniques.
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Source: U.S. Federal Bureau of Investigation Cyber Division
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