CISA Alert AA23-108A – APT28 exploits known vulnerability to carry out reconnaissance and deploy malware on Cisco routers.
The UK National Cyber Security Centre (NCSC), NSA, CISA, and FBI are releasing this joint advisory to provide TTPs associated with APT28’s exploitation of Cisco routers in 2021.
Resource to mitigate a ransomware attack: CISA-Multi-State Information Sharing and Analysis Center (MS-ISAC) Joint Ransomware Guide.
See CISA Insights Mitigations and Hardening Guidance for MSPs and Small- and Mid-sized Businesses for guidance on hardening MSP and customer infrastructure.
U.S. DIB sector organizations may consider signing up for the NSA Cybersecurity Collaboration Center’s DIB Cybersecurity Service Offerings, including Protective Domain Name System services, vulnerability scanning, and threat intelligence collaboration for eligible organizations. For more information on how to enroll in these services, email firstname.lastname@example.org
To report incidents and anomalous activity or to request incident response resources or technical assistance related to these threats, contact CISA at email@example.com, or call (888) 282-0870, or report incidents to your local FBI field office.