212-89 Exam Dumps - EC Council Certified Incident Handler (ECIH v3)

The statement "Do not download or execute applications from trusted sources" is incorrect and not considered a good practice for maintaining information security and eradicating malware incidents. In contrast, downloading or executing applications from trusted sources is a fundamental security best practice. Trusted sources are vetted and are generally considered safe for downloading software, updates, and applications. This practice helps to minimize the risk of introducing malware into the organizational environment. The other options (A, B, C) represent good practices that help in reducing the likelihood of malware infections by avoiding potentially harmful actions.

Restoring web application services with the help of existing backups, as performed by Robert, falls under the Recovery stage of the Incident Handling and Response (IH&R) process. The Recovery stage involves actions taken to return the organization to normal operations after an incident, which includes restoring systems to their operational state using backups, patching vulnerabilities, and ensuring that all systems are clean and secure before being brought back online. This step is crucial for resuming business operations and mitigating the impact of the incident.

Splunk is a powerful tool for log analysis, capable of collecting, analyzing, and visualizing data from various sources in real time. For an incident handler like Drake, intending to detect traces of malicious activities within the network infrastructure, Splunk can efficiently parse large volumes of log data, enabling the identification of patterns and anomalies that may indicate malware propagation or other security incidents. Its real-time analysis capabilities make it an ideal tool for monitoring network activities and responding to incidents promptly.

Email-bombing refers to the attack where the attacker sends a massive volume of emails to a specific email address or mail server in order to overflow the mailbox or overwhelm the server, potentially causing it to fail or deny service to legitimate users. This attack can disrupt communications and, in some cases, lead to the targeted email account being disabled. Masquerading involves pretending to be another legitimate user, spoofing is the creation of emails (or other communications) with a forged sender address, and a smurf attack is a specific type of Distributed Denial of Service (DDoS) attack that exploits Internet Protocol (IP) and Internet Control Message Protocol (ICMP) to flood a target with traffic. Email-bombing specifically targets email services with the goal of causing disruption by overflowing inboxes.

True attribution in the context of cyber incidents involves the identification of the actual individuals, groups, or entities behind an attack. This can include pinpointing specific persons, organizations, societies, or even countries that sponsor or carry out cyber intrusions or attacks. Alexis's efforts to identify and attribute the actors behind a recent attack by distinguishing the specific origins of the threat align with the concept of true attribution, which goes beyond mere speculation to provide concrete evidence about the perpetrators.

The term that describes the combination of strategies and services intended to restore data, applications, and other resources to the public cloud or dedicated service providers is "Cloud recovery." This term encompasses disaster recovery efforts focused on ensuring that an organization's digital assets can be quickly and effectively restored or moved to cloud environments in the event of data loss, system failure, or a disaster. Cloud recovery strategies are part of a broader disaster recovery and business continuity planning, ensuring minimal downtime and data loss by leveraging cloud computing's scalability and flexibility. Mitigation, analysis, and eradication are terms associated with other aspects of incident response and risk management, not specifically with the restoration of resources to cloud environments.

MxToolbox is a comprehensive tool designed for analyzing email headers and diagnosing various email delivery issues. When Francis received a spoofed email asking for his bank information, using MxToolbox to analyze the email headers would be appropriate. This tool helps in examining the source of the email, tracking the email's path across the internet from the sender to the receiver, and identifying any signs of email spoofing or malicious activity. It provides detailed information about the email servers encountered along the way and can help in verifying the authenticity of the email sender. Other options like EventLog Analyzer, Email Checker, and PoliteMail are tools used for different purposes such as analyzing system event logs, checking email address validity, and managing email communications, respectively, and do not specifically focus on analyzing email headers to the extent required for investigating a spoofed email incident.

Racheal should check for DKIM (DomainKeys Identified Mail) in the email headers to analyze the authenticity of received emails. DKIM is an email authentication method designed to detect email spoofing. It provides a way for the receiver to check that an email claimed to have come from a specific domain was indeed authorized by the owner of that domain. It achieves this by affixing a digital signature, linked to a domain name, to each outgoing email message. The recipient can verify this signature to confirm that the email was not altered during its transmission and that it indeed comes from the specified domain, thereby helping to prevent email spoofing. Other options like SNMP (Simple Network Management Protocol), POP (Post Office Protocol), and ARP (Address Resolution Protocol) are not directly related to email authenticity checks.