350-201 Performing CyberOps Using Core Security Technologies (CBRCOR) Questions and Answers

In the case of a suspicious email, the security analyst should communicate with employees to determine who opened the link and isolate the affected assets to prevent further spread of potential malware. Additionally, checking the email header to identify the sender and analyzing the link in an isolated environment are crucial steps to begin the investigation and understand the scope and impact of the potential breach13.

In the context of REST API authentication, the process typically involves the REST client first obtaining an access token by providing the necessary credentials, which usually include a password. Once the REST client has the access token, it uses this token to request access to a specific resource on the server. The REST API then validates the provided access token to ensure it is correct and has not expired. If the token is valid, the REST API grants the client access to the requested resource. This method ensures that only authenticated clients can access resources, providing a layer of security for the API.

The first security threat that should be mitigated when installing a new application server for IP phones is the attack using default accounts. Default accounts often have preset usernames and passwords that are widely known and can be easily exploited by attackers. It is crucial to change these default credentials to prevent unauthorized access

 According to the NIST incident response handbook, after detecting a ransomware outbreak and notifying the affected parties, the next step is to eradicate the malicious software from the infected machines. This involves removing the ransomware and any associated malware to prevent further encryption or spread of the infection3

When analyzing a possible compromise that occurred in the past, tools like Wireshark and Autopsy can be instrumental. Wireshark is a network protocol analyzer that can capture and display the data traveling back and forth on a network in real-time. It’s useful for understanding what happened during the compromise by analyzing the packets for signs of malicious activity. Autopsy is a digital forensics platform that cananalyze hard drives and smartphones to recover evidence of a compromise, such as malware artifacts or suspicious file changes. Both tools would provide an engineer with the necessary data to analyze the events leading up to and during the compromise.

System hardening is the process of securing a system by reducing its surface of vulnerability, which is larger when a system performs more functions; in principle, a single-function system is more secure than a multipurpose one. Reducing available ways of attack typically includes changing default passwords, the removal of unnecessary software, unnecessary usernames or logins, and the disabling or removal of unnecessary services1

The browser page rendering permissions are displayed in the X-Frame-Options HTTP response header. This header is used to control whether a browser should be allowed to render a page in a ,