The U.S. Cybersecurity and Infrastructure Security Agency (CISA) released an alert today about more than a dozen malware samples found on exploited Pulse Secure devices that are largely undetected by antivirus products. The agency recommends administrators strengthen the security posture by following the best practices: Maintain up-to-date antivirus signatures and engines. Administrators are strongly encouraged to review the reports for indicators of compromise and to learn about the threat actor s tactics, techniques, and procedures.
Source: https://www.bleepingcomputer.com/news/security/cisa-warns-of-stealthy-malware-found-on-hacked-pulse-secure-devices/