incident response

  1. AA21-055A: Exploitation of Accellion File Transfer Appliance

    Original release date: February 24, 2021 Summary This joint advisory is the result of a collaborative effort by the cybersecurity authorities of Australia,[Link Removed] New Zealand,[2] Singapore,[3] the United Kingdom,[4] and the United States.[Link Removed][6] These authorities are aware of...
  2. AA20-352A: Advanced Persistent Threat Compromise of Government Agencies, Critical Infrastructure, and Private Sector Organizations

    Original release date: December 17, 2020 Summary This Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) version 8 framework. See the ATT&CK for Enterprise version 8 for all referenced threat actor tactics and techniques. The Cybersecurity and Infrastructure...
  3. AA20-336A: Advanced Persistent Threat Actors Targeting U.S. Think Tanks

    Original release date: December 1, 2020<br/><h3>Summary</h3><p class="tip-intro" style="font-size: 15px;"><em>This Advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&amp;CK®) framework. See the <a href="Techniques - Enterprise | MITRE ATT&CK®">ATT&amp;CK for...
  4. AA20-304A: Iranian Advanced Persistent Threat Actor Identified Obtaining Voter Registration Data

    Original release date: October 30, 2020 Summary This advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) version 7 framework. See the ATT&CK for Enterprise version 7 for all referenced threat actor tactics and techniques. This joint cybersecurity advisory...
  5. AA20-302A: Ransomware Activity Targeting the Healthcare and Public Health Sector

    Original release date: October 28, 2020 Summary This advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) version 7 framework. See the ATT&CK for Enterprise version 7 for all referenced threat actor tactics and techniques. This joint cybersecurity advisory...
  6. AA20-301A: North Korean Advanced Persistent Threat Focus: Kimsuky

    Original release date: October 27, 2020 Summary This advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) version 7 framework. See the ATT&CK for Enterprise version 7 for all referenced threat actor tactics and techniques. This joint cybersecurity advisory...
  7. AA20-296A: Russian State-Sponsored Advanced Persistent Threat Actor Compromises U.S. Government Targets

    Original release date: October 22, 2020 Summary This joint cybersecurity advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise framework for all referenced threat actor tactics and techniques This joint cybersecurity...
  8. AA20-283A: APT Actors Chaining Vulnerabilities Against SLTT, Critical Infrastructure, and Elections Organizations

    Original release date: October 9, 2020 Summary This joint cybersecurity advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise framework for all referenced threat actor techniques. Note: the analysis in this joint...
  9. AA20-275A: Potential for China Cyber Response to Heightened U.S.–China Tensions

    Original release date: October 1, 2020 Summary This Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise framework for all referenced threat actor techniques. In light of heightened tensions between the United States and...
  10. AA20-266A: LokiBot Malware

    Original release date: September 22, 2020 Summary This Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise frameworks for all referenced threat actor techniques. This product was written by the Cybersecurity and...
  11. AA20-258A: Chinese Ministry of State Security-Affiliated Cyber Threat Actor Activity

    Original release date: September 14, 2020 Summary The Cybersecurity and Infrastructure Security Agency (CISA) has consistently observed Chinese Ministry of State Security (MSS)-affiliated cyber threat actors using publicly available information sources and common, well-known tactics...
  12. AA20-245A: Technical Approaches to Uncovering and Remediating Malicious Activity

    Original release date: September 1, 2020 Summary This joint advisory is the result of a collaborative research effort by the cybersecurity authorities of five nations: Australia,[Link Removed] Canada,[2] New Zealand,[3][4] the United Kingdom,[5] and the United States.[Link Removed] It...
  13. AA20-239A: FASTCash 2.0: North Korea&#039;s BeagleBoyz Robbing Banks

    Original release date: August 26, 2020 Summary This Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise framework for all referenced threat actor techniques. This joint advisory is the result of analytic efforts among...
  14. AA20-206A: Threat Actor Exploitation of F5 BIG-IP CVE-2020-5902

    Original release date: July 24, 2020 Summary The Cybersecurity and Infrastructure Security Agency (CISA) is issuing this alert in response to recently disclosed exploits that target F5 BIG-IP devices that are vulnerable to CVE-2020-5902. F5 Networks, Inc. (F5) released a patch for CVE-2020-5902...
  15. AA20-205A: NSA and CISA Recommend Immediate Actions to Reduce Exposure Across Operational Technologies and Control Systems

    Original release date: July 23, 2020 Summary Note: This Activity Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise and Link Removed frameworks for all referenced threat actor techniques and mitigations. Over recent...
  16. AA20-198A: Malicious Cyber Actor Use of Network Tunneling and Spoofing to Obfuscate Geolocation

    Original release date: July 16, 2020 Summary This Activity Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK™) and Pre-ATT&CK frameworks. See the MITRE ATT&CK for Enterprise and Pre-ATT&CK frameworks for referenced threat actor techniques. Attributing...
  17. AA20-183A: Defending Against Malicious Cyber Activity Originating from Tor

    Original release date: July 1, 2020 | Last revised: July 2, 2020 Summary This advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) and Pre-ATT&CK framework. See the ATT&CK for Enterprise and Pre-ATT&CK frameworks for referenced threat actor techniques. This...
  18. AA20-107A: Continued Threat Actor Exploitation Post Pulse Secure VPN Patching

    Original release date: April 16, 2020 | Last revised: June 30, 2020 Summary Note: This Activity Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise framework for all referenced threat actor techniques and mitigations...
  19. AA20-073A: Enterprise VPN Security

    Original release date: March 13, 2020 | Last revised: April 15, 2020 Summary As organizations prepare for possible impacts of Coronavirus Disease 2019 (COVID-19), many may consider alternate workplace options for their employees. Remote work options—or telework—require an enterprise virtual...
  20. VIDEO AA20-049A: Ransomware Impacting Pipeline Operations

    Original release date: February 18, 2020 | Last revised: June 30, 2020 Summary Note: This Activity Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK™) framework. See the MITRE ATT&CK for Enterprise and Link Removed frameworks for all referenced threat actor...