0-day — And Hitlist Week -02-21-2024- Fix

Subject: Threat Intelligence Digest: 0-day and Hitlist Week -02-21-2024-

• Why it made the Hitlist: This required user interaction (clicking a link), but due to the lack of a security warning, infection rates were high. Security analysts noted this as the "entry vector of choice" for Qbot campaigns detected on February 19 and 20.

The concepts of 0-day exploits and hitlists serve as stark reminders of the evolving nature of cybersecurity threats. Events like Hitlist Week offer opportunities for organizations and individuals to assess their cybersecurity posture, update their defenses, and prepare for emerging threats. By understanding these concepts and taking proactive measures, we can mitigate the risks associated with 0-day exploits and other cyber threats, fostering a safer digital environment for all. As cybersecurity threats continue to evolve, so too must our strategies for defense, emphasizing vigilance, collaboration, and a commitment to protecting digital assets. 0-day and Hitlist Week -02-21-2024-

• The "Ghost" Accounts: Several 0-days were found in on-premise identity management systems (think outdated Active Directory setups). Attackers were bypassing MFA entirely.
• Browser Engine Exploits: Two 0-days in popular web rendering engines (WebP and Chromium) were listed. These required no user interaction—just visiting a malicious website.
• The "Patch Gap": The Hitlist showed that for one critical CVE (rated 9.8), only 32% of exposed assets had been patched three weeks after the fix was released.

Part II: The Hitlist (Targeted Infrastructure Analysis Subject: Threat Intelligence Digest: 0-day and Hitlist Week