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CISA and FBI Release Advisory on Iranian Government-Sponsored APT Actors Compromising Federal Network


Today, CISA and the Federal Bureau of Investigation (FBI) published a joint Cybersecurity Advisory (CSA), Iranian Government-Sponsored APT Actors Compromise Federal Network, Deploy Crypto Miner, Credential Harvester. The CSA provides information on an incident at a Federal Civilian Executive Branch (FCEB) organization in which Iranian government-sponsored APT actors exploited a Log4Shell vulnerability in unpatched VMware Horizon server.

The CSA includes a malware analysis report (MAR), MAR-10387061-1-v1 XMRig Cryptocurrency Mining Software, on the mining software that the APT actors used against the compromised FCEB network. The CSA also provides tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) obtained from the incident response as well as recommended mitigations.

CISA and FBI strongly recommend organizations apply the recommended mitigations and defensive measures, which include:

  • Updating affected VMware Horizon and unified access gateway (UAG) systems to the latest version.
  • Minimizing your organization’s internet-facing attack surface.
  • Exercising, testing, and validating your organization’s security program against the threat behaviors mapped to the MITRE ATT&CK for Enterprise framework in the CSA.
  • Testing your organization’s existing security controls against the ATT&CK techniques described in the CSA. 

For additional information on malicious Iranian government-sponsored cyber activity, see CISA’s Iran Cyber Threat Overview and Advisories webpage and FBI’s Iran Threats webpage.


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