Pass the Cisco CyberOps Professional 350-201 Questions and answers with CertsForce

The Wireshark traffic capture exhibits a pattern where a single source IP address is sending a series of SYN packets to a single destination IP address. This pattern is indicative of a SYN flood attack, which is a form of Denial-of-Service (DoS) attack. In a SYN flood attack, the attacker exploits the TCP handshake mechanism by sending a flood of SYN packets to the target’s IP address. Theattacker does not complete the handshake with an ACK after receiving a SYN-ACK from the server, leaving connections half-open and eventually exhausting the server’s resources, which can lead to denial of service.

References:

The Cisco CyberOps curriculum, particularly the courses on Performing CyberOps Using Cisco Security Technologies (CBRCOR), would cover the identification and analysis of network threats, including SYN flood attacks.

Cisco’s official certification resources for the CyberOps Associate level would provide detailed information on various network threats and how to mitigate them, including the mechanisms of a SYN flood attack.

To reduce the number of false positive events about brute force attempts on the organization’s mail server, the Snort rule should be modified to tune the count and seconds threshold. This adjustment will help in defining what constitutes normal versus suspicious activity patterns more accurately. By setting a higher count or longer time threshold, the rule will be less likely to trigger on normal login attempts, thus reducing false positives.

References:

Snort User Manual: Provides guidance on configuring and tuning Snort rules.

Best Practices for IDS Configuration: Offers strategies for reducing false positives in intrusion detection systems.

The STIX (Structured Threat Information eXpression) provided in the exhibit indicates a risk associated with a file that redirects users to a malicious website. The code snippet shows an HTTP request being made to a URL known fordistributing ransomware. This type of threat involves tricking users into downloading and executing malicious software that encrypts their files and then demands payment for decryption. The static analysis of the file’s behavior, as shown in the code, supports the conclusion that the file poses a risk of ransomware infection1.

References:

Cisco CyberOps Using Core Security Technologies documentation.

Understanding Cisco CyberOps Using Core Security Technologies from Cisco’s official training and certifications resources.

Foundation Topics > Security Principles | Cisco Press1.

Conducting Forensic Analysis and Incident Response Using Cisco Technologies for CyberOps (CBRFIR) v1.02.

CBRFIR Exam Topics - Cisco Learning Network

The type of attack described, where users are redirected to a malicious website instead of the intended company website, is known as Domain Name System (DNS) poisoning. This attack involves corrupting the DNS cache with incorrect information,leading users to fraudulent websites even when they enter the correct domain name. This can be used to collect sensitive personal data from unsuspecting users.

The file in question indicates a DOS MZ executable format. The MZ signature at the beginning of the file (as seen in the hexadecimal representation) is characteristic of an executable file format for DOS. This signature, combined with the text “This program cannot be run in DOS mode,” which is typically included as a message in DOS MZ executables to be displayed when they are run in a non-DOS environment, confirms that the file is a DOS MZ executable.

While this format can be used for Windows executables as well (as they may start with a DOS MZ header for backward compatibility), the presence of the MZ header is a clear indicator of the DOS MZ executable format. The other options, such as an MS-DOS executable archive or archived malware, are less specific and do not directly relate to the evidence presented in the file’s resources. A Windows executable file would also have a DOS MZ header, but thequestion specifically asks about the indication from examining the file’s resources, which points to the DOS MZ format. Therefore, the most accurate answer is A. a DOS MZ executable format.

Creating an automation script for blocking URLs on the firewall when the rule is triggered will improve the effectiveness of the process by reducing the time between the detection of a request to a malicious URL and the blocking action. This proactive approach ensures that the URLs are blocked immediately, minimizing the window of opportunity for the threat to cause harm

Platform as a Service (PaaS) is the cloud environment type that allows cloud engineers to deploy applications without managing and controlling the server operating system. PaaS provides a platform with tools to test, develop, and host applications in the same environment

 The HTTP response header that signifies a page will be stopped from loading when a scripting attack is detected is the x-xss-protection header. When configured with the value “1; mode=block”, it instructs the browser to block the entire page from loading if a cross-site scripting (XSS) attack is detected, rather than attempting to sanitize the potentially malicious script. This header is a browser-side measure to prevent the execution of scripts if an XSS attack is suspected.

The other headers listed serve different purposes:

x-frame-options: Controls whether a browser should be allowed to render a page in a ,