The US Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), and National Security Agency (NSA) assess that cyber actors affiliated with the Russian General Staff Main Intelligence Directorate (GRU) 161st Specialist Training Center (Unit 29155) are responsible for computer network operations against global targets for the purposes of espionage, sabotage, and reputational harm since at least 2020. GRU Unit 29155 cyber actors began deploying the destructive WhisperGate malware against multiple Ukrainian victim organizations as early as 13 January 2022. These cyber actors are separate from other known and more established GRU-affiliated cyber groups, such as Unit 26165 and Unit 74455.
To mitigate this malicious cyber activity, organizations should take the following actions today:
- Prioritize routine system updates and remediate known exploited vulnerabilities.
- Segment networks to prevent the spread of malicious activity.
- Enable phishing-resistant multifactor authentication (MFA) for all externally facing account services, especially for webmail, virtual private networks (VPNs), and accounts that access critical systems.
This CISA report provides tactics, techniques, and procedures (TTPs) associated with Unit 29155 cyber actors both during and succeeding their deployment of WhisperGate against Ukraine as well as further analysis (see Appendix A) of the WhisperGate malware initially published in the joint advisory, Destructive Malware Targeting Organizations in Ukraine, published 26 February 2022.
Link to full report: IR-24-253-001_RUmilitaryattacks.pdf
Comments