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| Section | Objectives |
|---|---|
| Topic 1: Endpoint and Malware Analysis | - Use of Cisco endpoint security technologies - Malware behavior identification - Endpoint telemetry analysis |
| Topic 2: Incident Response Process | - Containment, eradication, and recovery procedures - Preparation and readiness for security incidents - Incident identification and triage |
| Topic 3: Security Monitoring and Cisco Technologies | - Log correlation and SIEM concepts - Cisco Secure Endpoint (AMP) usage - Cisco Secure Network Analytics (Stealthwatch) |
| Topic 4: Digital Forensics Fundamentals | - Evidence handling and chain of custody - Forensic data acquisition techniques - Disk and memory forensics concepts |
| Topic 5: Network Forensics and Traffic Analysis | - Packet capture and analysis - Network flow analysis using Cisco tools - Identifying malicious traffic patterns |
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NEW QUESTION # 76
Refer to the exhibit.
What is the IOC threat and URL in this STIX JSON snippet?
Answer: A
Explanation:
This STIX (Structured Threat Information eXpression) JSON snippet provides two key elements relevant for IOC (Indicator of Compromise) analysis:
The indicator pattern shows a suspicious URL:# " pattern " : " [url:value = ' http://x4z9rb.cn/4712/ ' ] " This is the actual IOC that can be used for detection.
The type of object that the indicator relates to:# " type " : " malware " # " name " : " x4z9arb backdoor " This indicates the nature of the threat associated with the IOC is malware.
Therefore, the threat is " malware "
and the associated indicator (IOC) is the URL: http://x4z9rb.cn/4712/
Option A correctly captures both the IOC category ( " malware " ) and the indicator value ( " http://x4z9rb.cn
/4712/ " ).
Reference: CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter on "Understanding Threat Intelligence Platforms," including the use of STIX/TAXII for representing threat data.
NEW QUESTION # 77
Refer to the exhibit.
During static analysis of the potentially malicious executable obpdisp.exe, a SOC analyst identifies several functions used by the executable. Which step should the analyst take next to investigate and understand the threat further?
Answer: A
Explanation:
The imported functions provide useful static clues: IsDebuggerPresent suggests anti-analysis awareness, while CreateFile, WriteFile, LoadLibrary, Sleep, and TerminateProcess indicate possible file, library, timing, and process activity. Imports alone do not reveal the arguments supplied, execution sequence, created artifacts, or network behavior. The correct next step is controlled dynamic analysis in an isolated sandbox so the analyst can observe processes, files, registry modifications, and communications without exposing production systems. Retrieving a single exported function address would narrow rather than broaden the investigation.
Creating a mutex changes the environment and is not an analyst's normal next step. Ignoring the file is unjustified. This aligns with CBRFIR Forensics Processes objective 4.4, which requires selecting the next evaluation step from distinguished file characteristics. Cisco Secure Malware Analytics combines static and dynamic runtime analysis for this purpose. Cisco Secure Malware Analytics
NEW QUESTION # 78
Refer to the exhibit.
What should an engineer determine from this Wireshark capture of suspicious network traffic?
Answer: A
Explanation:
In the provided Wireshark capture, we see multiple TCP SYN packets being sent from different source IP addresses to the same destination IP address (192.168.1.159:80) within a short time window. These SYN packets do not show a corresponding SYN-ACK or ACK response, indicating that these TCP connection requests are not being completed.
This pattern is indicative of a SYN flood attack, a type of Denial of Service (DoS) attack. In this attack, a malicious actor floods the target system with a high volume of TCP SYN requests, leaving the target ' s TCP connection queue (backlog) filled with half-open connections. This can exhaust system resources, causing legitimate connection requests to be denied or delayed.
The countermeasure for this scenario, as highlighted in the CyberOps Technologies (CBRFIR) 300-215 study guide under Network-Based Attacks and TCP SYN Flood Attacks, involves:
Increasing the backlog queue: This allows the server to hold more half-open connections.
Recycling the oldest half-open connections: This ensures that legitimate connections have a chance to be established if the backlog fills up.
Reference: CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter 5: Identifying Attack Methods, SYN Flood Attack section, page 146-148.
NEW QUESTION # 79
Refer to the exhibit. TrickBot malware infects a Windows 10 computer. Which IOC from the capture enables the security analyst to identify and remove the malware?
Answer: B
Explanation:
The strongest removable host artifact is ATBOXLGQOOBDZTLA. In the capture, it is associated with an HTTP 200 OK response whose content begins with MZ, the signature of a Windows Portable Executable. The unusual extensionless name combined with executable content makes it a concrete file IOC that an analyst can locate, hash, quarantine, and remove from the infected endpoint. imgpaper.png is presented as an image resource and does not, from this evidence alone, establish executable malware. bolton-tech.com is a network IOC useful for blocking or hunting, but it does not directly identify the local malicious file to remove. YAS20.
exe appears in an HTTP request path, whereas the captured response explicitly associates executable content with the randomly named artifact. This maps to CBRFIR objective 2.3, evaluating malware-analysis and network-traffic output to identify an IOC on a host. Cisco CBRFIR v1.2 exam topics
NEW QUESTION # 80
What is the primary role of hex editors such as HxD in digital forensics and incident-response investigations?
Answer: A
Explanation:
A hex editor exposes a file or storage artifact as raw bytes, normally presenting hexadecimal values beside their ASCII interpretation. Investigators use that view to inspect file signatures and headers, locate embedded strings, identify byte patterns, compare altered regions, examine slack or unstructured data, and make controlled changes to a working copy when required. It is not a network-monitoring platform, so option B describes a packet or flow-analysis tool. Option C describes sandboxing or dynamic malware analysis. Option D is closer to a disassembler or decompiler, which translates executable machine instructions into assembly or higher-level representations. Cisco's current blueprint explicitly separates these roles: objective 1.6.a covers HxD, Hiew, and Hex Fiend in DFIR, while objective 1.6.b covers disassemblers and debuggers for basic malware analysis. Therefore, examining and manipulating binary data is the precise answer. Cisco CBRFIR v1.2 exam topics
NEW QUESTION # 81
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