Help Net Security has written an article discussing the merits of wargaming to help build well-practiced data breach response processes. The author argues that drilling a wide variety of “what if” scenarios is an effective way for security teams to add new annexes to their existing incident response playbooks, as well as practice emergency communications in a risk-free environment.
While patching vulnerabilities is challenging for defenders, exploiting vulnerabilities left unpatched is not so challenging for threat actors.
The Cybersecurity and Infrastructure Security Agency (CISA) has published the following ICS vulnerability advisories, as well as alerts, updates, and bulletins:
ICS Vulnerability Advisories:
PasswordManager has written an article discussing a survey of 1000 U.S. workers the site conducted to better understand employee password hygiene after leaving their company. According to the report, 47 percent of respondents still used their employers’ passwords after leaving the company; 56 percent of which did so for their personal use.
Kaspersky’s SecureList has published a blog detailing an observed Nokoyawa ransomware attack utilizing a previously unknown Microsoft vulnerability. While the use of zero-days is mostly associated with nation-state threat groups, the actors behind Nokoyawa ransomware are known for their technical sophistication and tendency to utilize exploits targeting the Common Log File System, of which the zero day was associated with.
WaterISAC convened a special web briefing on April 12. Nushat Thomas, the cybersecurity branch chief at EPA's Water Infrastructure and Cyber Resilience Division (WICRD), presented.
Agenda - What You Need to Know: EPA’s New Operational Technology Cybersecurity Requirement to Help PWSs
In addition to the recording and presentation, WaterISAC provided information on upcoming events and opportunities.
The Cybersecurity and Infrastructure Security Agency (CISA) has published the following ICS vulnerability advisories, as well as alerts, updates, and bulletins:
ICS Vulnerability Advisories:
Alerts, Updates, and Bulletins:
CSO Online has written an article discussing the importance of cyber incident reporting and how it helps build a more resilient security community. While many governments are beginning to implement legislation that mandates incident reporting, the article points to existing mechanisms the private sector has used to share information through Information Sharing and Analysis Centers (ISACs). These channels have helped organizations mitigate attacks and coordinate a response to widespread campaigns.
Microsoft, Fortra, and Health-ISAC have announced a partnership to remove malicious copies of Cobalt Strike through legal and technical means. This includes copyright claims, targeting file sharing sites, and a court order allowing the partnership to disrupt the infrastructure that utilizes Cobalt Strike to conduct cyber attacks. Fortra’s Cobalt Strike is a popular security tool used by red teams. However, cracked and altered copies have become extremely popular for threat actors to utilize as part of ransomware attacks.
Threat actors are utilizing a new attack vector that hijacks legitimate proxyware services, which allows users to sell portions of Internet bandwidth to third parties. In large-scale attacks that exploit cloud-based systems, threat actors can use this vector, termed proxyjacking, to earn possibly hundreds of thousands of dollars per month in passive income, according to security researchers from Sysdig Threat Research Team.
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