EC-COUNCIL 312-39 Actual Free Exam Questions & Community Discussion

Juliea a SOC analyst, while monitoring logs, noticed large TXT, NULL payloads.
What does thisindicate?

Bonney's system has been compromised by a gruesome malware.
What is the primary step that is advisable to Bonney in order to contain the malware incident fromspreading?

You are a SOC analyst at a leading financial institution tasked with developing a comprehensive threat model to safeguard critical assets: sensitive customer data, online banking applications, and real-time payment processing systems. The organization has observed increased targeted attacks on financial entities, including credential theft, account takeovers, and sophisticated phishing. Senior management is concerned about long- term financial and reputational damage. You need intelligence providing insights into high-level risks, geopolitical threats, and emerging cybercriminal strategies with long-term implications for security posture.
Which type of threat intelligence are you seeking?

DNS logs in the SIEM show an internal host sending many DNS queries with long, encoded subdomains to an external domain. The queries predominantly use TXT records and occur during off-business hours. The external domain is newly registered and has no known business association. Which option best explains this behavior?

A manufacturing company is deploying a SIEM system and wants to improve both security monitoring and regulatory compliance. During planning, the team uses an output-driven approach, starting with use cases that address unauthorized access to production control systems. They configure data sources and alerts specific to this use case, ensuring actionable alerts without excessive false positives. After validating success, they move on to use cases related to supply chain disruptions and malware detection. What is the primary advantage of using an output-driven approach in SIEM deployment?

The SOC team at CyberSecure Corp is conducting a security review to identify anomalous log entries from firewall logs. The team needs to extract patterns such as email addresses, IP addresses, and URLs to detect unauthorized access attempts, phishing activities, and suspicious external communications. The SOC analyst applies various regular expressions (regex) patterns to filter and analyze logs efficiently. For example, they use \b\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}\b to match IPv4 addresses. Which regex pattern should the SOC analyst use to extract all hexadecimal color codes found in the logs?

A rapidly growing e-commerce company wants to implement a SIEM solution to improve its security posture and comply with PCI DSS requirements. They need a solution that offers both the necessary technological features and the expertise to manage the system effectively. They also need continuous compliance support and data security assistance. Which SIEM solution is appropriate for this company?

At GlobalTech, the SOC team detects a suspicious ransomware outbreak affecting multiple endpoints. After successfully isolating the infected systems from the network, the Digital Forensics team begins their investigation. They deploy a forensics workstation to acquire RAM dumps, extract Windows Event Logs, and collect network PCAP files from the compromised hosts. Which phase of the Incident Response lifecycle is currently underway?

In which log collection mechanism, the system or application sends log records either on the local disk or over the network.

SecureTech Inc. operates critical infrastructure and applications in AWS. The SOC detects suspicious activities such as unexpected API calls, unusual outbound traffic from instances, and DNS requests to potentially malicious domains. They need a fully managed AWS security service that continuously monitors for malicious activity, analyzes CloudTrail logs, VPC Flow Logs, and DNS query logs, leverages machine learning and threat intelligence, and provides actionable findings. Which AWS service best fits?

CyberBank has experienced phishing, insider threats, and attempted data breaches targeting customer financial records. The bank operates across multiple regions and needs a solution offering continuous security monitoring, rapid threat detection, and centralized visibility across all branches. Which solution will provide automated alerting, digital forensics capabilities, and active threat hunting?

Global Bank relies heavily on Microsoft Azure to host critical banking applications and services. The SOC must ensure continuous monitoring, compliance, and real-time threat detection across Azure resources. They need a comprehensive solution to collect, analyze, and visualize telemetry from cloud resources, VMs, storage, and applications, and integrate with security tools to detect anomalies and monitor performance.
Which Azure service is best suited?

Mark Reynolds, a SOC analyst at a global financial institution, is working on the eradication phase after detecting phishing attacks targeting employees. To ensure attackers cannot reuse malicious infrastructure, Mark implements a technique that blocks known malicious IP addresses used for sending spam emails at the Domain Name System (DNS) level. Which technique is best suited?