A new advisory from the Cybersecurity and Infrastructure Security Agency and Australian Cyber Security Centre details the top malware strains observed last year and immediate actions organizations should take to protect themselves from these remote access Trojans, information stealers and ransomware threats.

“This report confirms that the most prolific malware users are cyber criminals who use malware to deliver ransomware,” said John Riggi, AHA’s national advisor for cybersecurity and risk. “A particular threat interest to hospitals and health systems cited in the report is the botnet TrickBot, which was leveraged by the notorious Russian-speaking ransomware gang known as Conti to conduct at least 450 attacks globally, including at least 16 high-impact ransomware attacks against U.S. health care organizations. Along with prioritizing patching of known vulnerabilities and enforcing multi-factor authorization, the report recommends utilizing CISA’s free cyber hygiene services, which include continuous scanning of an organization’s public IP addresses and weekly vulnerability reports. This is a very good service for hospitals and health systems to add, especially those with limited resources, as part of a layered, defense-in-depth cybersecurity strategy.”

For more information on this or other cyber and risk issues, contact Riggi at jriggi@aha.org.
 

Related News Articles

Headline
In part one of a new blog, John Riggi, AHA national advisor for cybersecurity and risk, and Scott Gee, AHA deputy national advisor for cybersecurity and risk,…
Perspective
Public
This week, the FBI issued an urgent warning to all users — including hospitals — of a critical security soft spot within Oracle’s E-Business Suite, stating “…
Headline
The Health Sector Coordinating Council Oct. 7 released its Sector Mapping and Risk Toolkit, created to help health care providers and other organizations…
AHA Cyber Intel
As of Oct. 3, 2025, 364 hacking incidents had been reported to the U.S. Department of Health and Human Services Office for Civil Rights, affecting over 33…
Headline
The AHA Oct. 6 released a Cybersecurity Advisory urging immediate action against a critical Oracle E-Business Suite vulnerability that is remotely exploitable…
Headline
The AHA has launched an enhanced Cybersecurity and Risk webpage designed to help health care organizations strengthen their defenses against emerging cyber and…