Sandboxing involves isolating potentially harmful files or programs in a secure environment to analyze their behavior without risking damage to the main system.
In the context of the scenario provided, where a ransomware attack has already breached the company's defenses, implementing sandboxing may help prevent future attacks by better understanding how malware behaves. However, in the immediate aftermath of an attack, addressing vulnerabilities through vulnerability management (option B) would likely have a more immediate impact on mitigating the effects and preventing similar incidents in the future
B. Implement vulnerability management. This is because vulnerability management is a process of identifying, assessing, and remediating security weaknesses in systems and applications that could be exploited by malicious actors1. By implementing vulnerability management, an organization can reduce the attack surface and prevent ransomware from spreading or encrypting more data.
So... if you have an active ransomware attack in your organization, you are going to prefer starting the process of vulnerability management to attempt to prevent other systems from getting encrypted, rather than updating the application blocklist to immediately block the encryption binary?
I would definitely update the blocklist first and then think about assessing and remediating vulnerabilities.
If a ransomware attack has already made it past the company antivirus. Implementing vulnerability management during a ransomware attack or installing a firewall doesn't seem to be the best option. Sandboxing might stop some lateral movement but doesn't guarantee it will mitigate the programs ability to run on other machines.
Finding the ransomware program and adding it to an application block list ensures the application can't run / move laterally. Which will mitigate an active attack, instead of hoping a sandbox will stop it. Which it won't.
This is one of those questions where all the answers seem not good enough. All of these measures are preventative when we're looking for corrective measures when the problem is already there.
I’m thinking in term of prioritising isolation/containment first. Blocking the malware from running on other still clean systems would limit the damage.
But I could argue that running a sandbox to better understand the malware to block it better is also reasonable. But that cost more time, so I’m going with D. Feeling almost 50/50 between them.
Updating the application blocklist can immediately block the ransomware binaries on the rest of systems, making it the best option to mitigate the effects of a materialized ransomware attack.
The best option to mitigate the effects of a new ransomware attack that was not properly stopped by the company's antivirus would be:
C. Deploy sandboxing.
Sandboxing allows you to run potentially malicious files or programs in an isolated environment where they cannot affect the rest of the system. This way, even if ransomware manages to get past the antivirus, its ability to cause harm would be limited to the sandboxed environment.
While options like installing a firewall (A), implementing vulnerability management (B), and updating the application blocklist (D) are important security measures, they may not directly address the immediate threat posed by the ransomware attack. Sandboxing provides a proactive defense mechanism specifically designed to detect and mitigate the effects of malware, including ransomware, by analyzing its behavior in a controlled environment.
Sandboxing seems like the best answer here, it's the only post infection persciption from what I can see. We need to mitigate it after it already beat the firewall making the other options questionable.
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