Pass the ECCouncil ECIH 212-89 Questions and answers with CertsForce

Anti-forensics refers to techniques used to hinder the forensic analysis of a computer system. By hiding files in slack space, changing file headers, embedding suspicious files in executables, and altering metadata, BadGuy Bob is attempting to make it difficult for forensic analysts to find, analyze, and attribute the malicious activities and data on his laptop. These actions are designed to conceal evidence, manipulate digital artifacts, and obstruct investigations, making them clear examples of anti-forensic techniques. While such actions could be part of broader criminal activities, constituting a felony, and could be seen as adversarial mechanics or legal hostility in specific contexts, the most accurate classification of these techniques is anti-forensics.

Wireshark is a network protocol analyzer that allows users to capture and interactively browse the traffic running on a computer network. It is a crucial tool for incident responders like Eric who are developing incident-handling plans and need to analyze network traffic and patterns. Wireshark can provide detailed information about the network, including protocols used, source and destination of packets, and potential signs of malicious activity, making it invaluable for developing informed policies and procedures.

This scenario involves an active cloud malware incident affecting operational systems. According to the ECIH cloud incident handling process, the priority after detection is containment and eradication using appropriate tooling. Cloud-specific security tools provide visibility into workloads, API activity, lateral movement, and malicious persistence mechanisms unique to cloud environments.

Option B is correct because deploying the cloud security tool enables identification of infected resources, malicious processes, compromised identities, and abnormal API usage. This allows responders to contain spread, remove malware, and restore integrity without unnecessary disruption.

Option A is an extreme business decision that could cause severe operational and financial damage and should only occur if safety is directly threatened. Option C is a communication step that must be based on verified impact. Option D is monitoring, not response.

ECIH emphasizes that incident response actions must be proportional, evidence-based, and targeted. Leveraging cloud-native or cloud-aware security tools is the most effective primary response in such incidents, making Option B correct.

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.

Employee monitoring tools are primarily used by employers to detect and prevent malicious insider threats. These tools can track activities such as data access, data exfiltration attempts, unauthorized actions, and other behaviors that could indicate malicious intent or pose a risk to the organization's security. While such tools may also incidentally uncover issues like lost registry keys, conspiracies, or stolen credentials, their main purpose is to safeguard against insiders who might misuse their access to harm the organization, steal data, sabotage systems, or engage in espionage.

High Orbit Ion Cannon (HOIC) is a tool designed to perform stress testing on networks or servers. It can launch a Distributed Denial of Service (DDoS) attack by enabling an attacker to overwhelm a target with HTTP POST and GET requests. HOIC's distinctive feature is its ability to attack multiple targets (up to 256 URLs simultaneously) with configurable HTTP flood attacks. This capability makes it a preferred choice for attackers aiming to disrupt services on a large scale. Unlike tools designed for debugging or vulnerability scanning (e.g., IDA Pro, Ollydbg, OpenVAS), HOIC is specifically crafted for launching DoS/DDoS attacks, making it the correct answer for Dash's objective.

Email Dossier is a tool designed to assist in the investigation of email incidents by analyzing and validating email headers and providing detailed information about the origin, routing, and authenticity of an email. When Michael is tasked with handling an email incident and needs to check the validity of an email received from an unknown source, Email Dossier can be utilized to trace the email's path, assess its credibility, and identify potential red flags associated with phishing or other malicious email-based attacks.

WMIC (Windows Management Instrumentation Command-line) is a command-line tool that provides a unified interface for Windows management tasks, including the collection of system information. It allows administrators and forensic investigators to query the live system for information about running services, their process IDs, start modes, states, and statuses, among other data. The use of WMIC is particularly valuable in incident response scenarios for gathering volatile information from a system without having to install additional software, which might alter the state of the system being investigated. By executing specific WMIC commands, Clark can extract detailed information about the services running on a system at the time of the investigation, making it an essential tool for collecting volatile data in a forensically sound manner.

This incident indicates credential compromise, a common cloud security issue addressed in the ECIH Cloud Incident Handling module. When credentials are suspected to be compromised, the immediate priority is to stop unauthorized access and determine the scope of misuse.

Option B is correct because resetting the compromised credentials immediately cuts off the attacker’s access. Reviewing recent access logs allows responders to validate what actions were taken, which data was accessed, and whether additional accounts were affected. ECIH emphasizes immediate credential revocation as a first-response action in identity-based cloud incidents.

Option D (enabling MFA) is a critical hardening measure but does not immediately revoke compromised credentials. Option A is a recovery step that may not stop ongoing access. Option C may be necessary later but should not delay immediate containment.

Therefore, resetting credentials and reviewing logs is the most effective first action, fully aligned with ECIH guidance.

According to the EC-Council Incident Handler (ECIH) curriculum, malware infections commonly originate from users downloading malicious executables from untrusted external sources. The scenario clearly indicates repeated access to suspicious URLs followed by the download of unsigned executable files outside business hours. ECIH classifies such behavior as high-risk web activity leading to malware compromise.

The endpoint protection system flagged the executables as malicious after execution, and outbound communication attempts suggest command-and-control (C2) beaconing behavior. ECIH explains that once malware executes, it frequently attempts outbound connections to attacker-controlled infrastructure for instructions, payload updates, or data exfiltration.

There is no evidence suggesting Wi-Fi spoofing (Option B), as logs trace activity to an internal workstation. Option C (SQL injection) relates to web application vulnerabilities, which are not described in this endpoint-based download scenario. Option D (privilege escalation) may occur after infection, but it is not presented as the initial cause.

ECIH emphasizes monitoring web proxy logs, correlating SIEM alerts, validating digital signatures, and analyzing firewall egress traffic to confirm malware incidents. Nina’s actions—log correlation, endpoint isolation, and lateral movement investigation—align precisely with recommended containment procedures.

Therefore, the most likely cause of the incident is inappropriate resource usage through malicious downloads.