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  • Different types of incidents
  • Importance of the incident response process
  • Phases of the incident response process
  • Tools used for SOC incident response
  • Enhancing SOC incident response with SIEM
  • Challenges of the incident response process
  • Best practices
  • Role of SIEM in effective SOC incident response
 

Security operations centers (SOCs) are game-changers in modern cybersecurity, playing a crucial role in strengthening incident response capabilities. In a world where cyberthreats evolve rapidly, swift and efficient incident response is vital to minimizing damage and ensuring business continuity . According to IBM’s Cost of a Data Breach Report, organizations with an incident response team and a formal response plan save an average of $473,706 in breach-related costs. A well-defined incident response process enables organizations to detect, contain, and remediate threats in real time. With a proactive SOC in place, businesses can transform their defense strategy from reactive to resilient.

This article delves deep into the SOC incident response process and how SIEM can be helpful.

Types of incidents that a SOC handles

T he following are the five most common types of incidents that a SOC typically handles:

  1. Malware infections: Detecting and removing malicious software, such as viruses, worms, ransomware, or Trojans, which can compromise systems or data
  2. Phishing attacks: Identifying and responding to deceptive emails or messages aiming to steal credentials or sensitive information
  3. Unauthorized access: Monitoring for and mitigating instances where attackers or insiders gain access to systems or data without proper authorization
  4. Denial-of-service attacks: Detecting and responding to attacks that flood systems or networks, disrupting service availability
  5. Data breaches: Investigating and containing incidents involving unauthorized data exfiltration or the exposure of confidential information

The importance of the SOC incident response process

Maintaining an organization's security posture and reducing the impact of cyberattacks depend heavily on the SOC incident response process. It provides a structured, systematic approach to detecting, analyzing, containing, and recovering from security incidents. A robust incident response process ensures compliance with regulations, minimizes damage, speeds up response times, and promotes continuous improvement through the lessons learned. In the end, it helps companies protect critical assets, respond to threats proactively, and maintain stakeholders' trust.

Phases of the SOC incident response process

Phase Process
Preparation This is the foundation of a successful incident response process. It entails:
  • Creating and updating playbooks and policies for incident response.
  • Installing alerting systems and monitoring tools.
  • Defining team roles and communication methods.
  • Conducting simulated incident drills and providing regular staff training.
Identification In this phase, the SOC works to detect and verify that an actual security incident has occurred. This involves:
  • Analyzing logs, alerts, and anomalies from security tools (SIEM tools, IDSs, IPSs, EDR tools, etc.).
  • Correlating threat intelligence with internal events.
  • Prioritizing and classifying the incident based on its severity and impact.
Containment Reducing the incident's impact and spread is the aim here. Usually, containment is divided into:
  • Short-term containment: Immediate steps to isolate the affected systems (e.g., taking a device offline and blocking IPs)
  • Long-term containment: Measures to keep the threat isolated while planning for full remediation (e.g., network segmentation or patching)
Eradication The SOC concentrates on eliminating the incident's primary cause after the threat has been contained. This involves:
  • Removing malicious programs or files.
  • Disabling hacked accounts.
  • Patching exploited configuration errors or vulnerabilities.
Recovery During this stage, the organization brings its systems back to regular functioning while ensuring their security before resuming online operations. Recovery involves:
  • Rebuilding the impacted systems.
  • Verifying the security and integrity of data and systems.
  • Monitoring for signs of reinfection or residual issues.
Lessons learned After the incident is resolved, the SOC conducts a post-incident review to:
  • Analyze how the incident occurred and was handled.
  • Identify what worked well and what didn’t.
  • Recommend improvements to the response process, tools, or training.
Documentation and reporting Proper documentation is essential for:
  • Internal review and learning.
  • Compliance with industry regulations and audits.
  • Communicating with stakeholders and management.

Key tools used in the SOC incident response process

For efficient detection and monitoring, the following tools and capabilities can be used:

  • SIEM tools: Collect and analyze log data from across the environment to detect anomalies and generate alerts.
  • IDSs and IPSs: Monitor network traffic for signs of attacks or policy violations.
  • EDR tools: Monitor for and respond to threats at the endpoint level.

The role of SIEM in enhancing the SOC incident response process

Phase SIEM solution features
Preparation
  • Collects data logs from firewalls, endpoints, cloud services, servers, and more and presents them in a unified format
  • Helps establish baselines for normal activity patterns to aid in detecting anomalies later
  • Allows you to set up customized correlation rules for detecting specific threat types
  • Tracks and maintains an inventory of assets and their risk posture data
  • Allows the creation of multiple technician roles for the various analyst levels and their responsibilities
Identification
  • Identifies and sends alerts on suspicious activity (e.g., brute-force login attempts or lateral movement) based on log data and correlation
  • Uses behavior analytics or ML to flag deviations from baseline behavior in order to detect anomalies
  • Implements threat intelligenceintegration to match event data with IoCs from threat intelligence feeds
Containment
  • Works with orchestration tools like SOAR platforms to initiate automated containment actions (e.g., disabling user accounts or quarantining endpoints)
  • Escalates incidents to analysts and triggers predefined workflows for containment
Eradication
  • Tracks attackers' movements and uncovers the root cause of how an attack was established
  • Queries across vast logs to find related indicators or compromised systems through historical search capabilities
  • Helps isolate affected components based on attack or event timelines
Recovery
  • Verifies that restored systems haven’t been tampered with
  • Confirms that operations are returning to normal based on log activity and performance patterns
Lessons learned
  • Reconstructs timelines throughreportsto understand what happened and when
  • Maps attacker actions (e.g., with the MITRE ATT&CK® framework) to identify gaps in detection or responses
  • Tracks the mean time to detect and respond, alert volumes, and response effectiveness
Documentation and reporting
  • Logs every action taken by analysts during an incident
  • Generates detailed incident summaries and compliance reports (e.g., for the GDPR, HIPAA, and ISO/IEC 27001)
  • Offers real-time and historical views of incidents, trends, and SOC performance through dashboards

For effective containment and protection, you can use the following tools:

  • SOAR platforms automate repetitive tasks and orchestrate workflows for faster incident response.

For faster eradication and recovery, you can use the following tools:

  • Forensic analysis tools assist in deep analysis of compromised systems to find root causes and malicious artifacts.
  • Vulnerability management tools identify vulnerabilities that may have been exploited in an incident, tracking them across endpoints and helping you deploy patches.

For enhanced post-incident review and learning, you can use the following tools:

  • Knowledge base management tools help you review your incident response process across various stages and make improvements.

For better documentation and reporting, you can use the following tools:

  • Incident tracking and ticketing systems log incidents, track the progress of tickets, and maintain audit trails.
  • Threat intelligence platforms aggregate threat data and context to enrich investigations and anticipate future threats.

Challenges of the SOC incident response process

SOC teams face the following challenges:

  • Alert fatigue: Every day, SOC analysts may get dozens of alerts, many of which are low-priority or false-positive events. Burnout and missed incidents result from the inability to distinguish real threats from noise. Critical threats may go undetected, or analysts may take too long to address them, increasing the potential damage.
  • A lack of skilled personnel: There's a global shortage of experienced cybersecurity professionals with the skills needed for incident response. It is difficult to look into complicated incidents or make prompt, well-informed decisions without qualified analysts. Poor remediation techniques, misinterpreted threats, and delayed responses can increase your organization's risk.
  • Tool overload and poor integration: SOC teams frequently utilize a variety of tools that come from many suppliers and are ineffective at communicating with one another. Incident handling is slowed down by interface switching, redundant work, and missing context. Inefficiencies in workflows and incomplete threat visibility lead to uncoordinated, slow responses.
  • Insufficient visibility: Many SOCs don't have complete visibility into every aspect of their IT infrastructure, particularly when it comes to the cloud, remote endpoints, or third-party systems. Attackers could take advantage of undiscovered vulnerabilities or activities since we can't protect what we can't see. Insufficient visibility means threats remain hidden longer, leading to greater damage and harder investigations.
  • Slow response times: Log analysis, threat containment, and triage are examples of manual procedures that are labor-intensive and prone to human error. Slow operations give attackers more time to move laterally or exfiltrate data. Since every second counts during an incident, this leads to increased downtime, data loss, and reputational damage.
  • An evolving threat landscape: Cyberthreats constantly evolve, with attackers using new techniques like file-less malware or AI-generated phishing. SOC teams need to update their detection rules, playbooks, and threat intelligence constantly. Falling behind on threat trends increases the risks of undetected attacks or ineffective response strategies.

Best practices for an effective SOC incident response process

The following are the best practices you can follow to overcome the challenges listed above:

  • Fine-tune your SIEM solution's detection rules to reduce false positives.
  • Use correlation and context enrichment to focus on meaningful alerts.
  • Automate tasks like triage and enrichment using a SOAR platform to lighten the analysts' load.
  • Regularly upskill your team with certifications, workshops, and simulations.
  • Invest in training analysts on how to use advanced SIEM solution features like search queries and regular expressions.
  • Use SIEM or SOAR tools to centralize data and responses in one interface.
  • Integrate real-time intelligence into detection and investigation processes.

The role of SIEM in effective SOC incident response

Here's how a SIEM solution can help you overcome the challenges mentioned above:

Challenge SIEM features
Alert fatigue
  • Correlate and prioritize alerts: A SIEM solution reduces noise and analyst fatigue by highlighting real threats and eliminating false positives using correlation rules and risk-based scoring.
  • Fine-tune the detection logic: To adjust to changing trends, use ML-based anomaly detection and continuously refine rules and thresholds based on insights from previous incidents.
A lack of skilled personnel
  • Automate with playbooks: Built-in workflows and guided investigations help less experienced analysts respond effectively, reducing dependence on highly skilled staff.
  • Scale with a SOAR integration: Pair SIEM with SOAR tools to automate repetitive tasks, enabling faster responses and better use of limited resources.
Tool overload and poor integration
  • Centralize and normalize data: A SIEM solution unifies logs from various tools, enabling a single pane of glass view and reducing context switching during investigations.
  • Integrate key tools via APIs: Streamline workflows by integrating EDR tools, firewalls, and threat feeds directly into the SIEM solution for cohesive, contextual incident handling.
Insufficient visibility
  • Ingest data from a variety of sources: Modern SIEM solutions collect logs from on-premises, cloud, remote, and third-party systems to ensure complete infrastructure visibility.
  • Audit and close gaps: Make sure all important assets are tracked and correlated in the SIEM solution and regularly review data sources to address blind spots.
Slow response times
  • Accelerate responses with automation: SIEM solutions can trigger immediate response actions (like isolating endpoints) and present attack timelines for quick analysis.
  • Predefine incident workflows: Use templates and automated response scripts to reduce manual intervention and ensure consistent remediation.
An evolving threat landscape
  • Update rules and intelligence feeds: Customize the SIEM solution's rules and integrate real-time threat intelligence to detect the latest attacker techniques.
  • Test and refine detection rules: Conduct regular simulations using MITRE ATT&CK to validate detection rules and improve response strategies.

Empower your enterprise

ManageEngine Log360, a unified SIEM solution with data security and cloud security capabilities, stands as your enterprise’s shield, defending against a multitude of cyberthreats with its robust capabilities, such as:

  • Unmatched threat detection across your network: Identify threats across endpoints, firewalls, web servers, databases, switches, routers, and cloud sources, ensuring enterprise-wide protection.
  • Proactive attack detection with advanced analytics: Harness rule-based attack detection, the MITRE ATT&CK framework, and ML-powered behavior analytics to detect cyberthreats, trigger real-time alerts, and automate incident response for swift mitigation.
  • UEBA for deeper insights: Monitor and detect anomalous activities across users, hosts, and other network entities using advanced ML algorithms, strengthening your security posture against insider threats.
  • SOAR: Enhance security operations with unified security data analytics, integrated incident management, prebuilt response workflow profiles, and automated ticketing systems, streamlining response and remediation.
  • Integrated DLP for sensitive information protection: Prevent data leaks by locating and classifying sensitive information using predefined data discovery policies, enforcing security controls, and restricting access to non-business cloud services.
  • CASB capabilities for cloud security management: Gain control over cloud applications, monitor shadow IT, and analyze user interactions with cloud services, ensuring secure access and usage.
  • Simplified IT compliance management: Stay ahead of regulations with audit-ready reports, real-time compliance alerts, privileged user monitoring, and incident resolution features that help you meet regulatory mandates effortlessly.
  • Real-time security analytics for complete visibility: Monitor network activity, detect anomalies, and manage incidents in real time with interactive dashboards, advanced threat analytics, real-time event correlation, and automated response features, ensuring a proactive security stance.

If you would like to enhance your enterprise's security posture, sign up for a personalized demo of ManageEngine Log360.