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An Overview of the Incident Response Process Incident response is not an isolated event, but rather a process. To be successful, incident response teams must take a synchronized and organized technique to handle any incident. Below are the five main steps that make a reliable effective incident response program: Preparation
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Preparation is the core of every incident response that works. Even the best men cannot work effectively without preset guidelines. A solid plan to support the team is a must. To address security events successfully, this plan must include four crucial elements, namely development and documentation of IR policies, guidelines for communication, cyber hunting exercises, and threat intelligence feeds.
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Detection and Reporting This phase is focused on monitoring security events to spot, warn, and report on probable security incidents. * Security event monitoring is possible with the help of intrusion prevention systems, firewalls, and data loss control measures. * To detect potential security incidents, the team should correlate alerts within an SIEM (Security Information and Event Management) solution. * Before alerts are issued, analysts create an incident ticket, present initial findings, and lay down a preliminary incident classification. * A report must leave space for regulatory reporting escalations. Triage and Analysis This is where most efforts to properly scope and understand the security incident takes place. Resources need to be utilized for data gathering from tools and systems for further examination, and also to identify compromise indicators. People must have in-depth skills and a thorough understanding of digital forensics, live system responses, and memory and malware analysis. As evidence is gathered, analysts must concentrate focus on three main areas: a. Endpoint Analysis > Determine the tracks of the threat actor > Obtain artifacts to create activity timeline > Conduct a forensic examination of a bit-for-bit copy of systems, and get RAM to parse through and spot key artifacts for determining what happened in a device b. Binary Analysis > Look into malicious binaries or tools used by the attacker and document the capabilities of such programs. Enterprise Hunting > Scrutinize current systems and event log technologies to know the scope of compromise. > Document all accounts, machines, etc. that have been compromised to control and neutralize effects. Containment and Neutralization This counts among the most critical steps of incident response. The technique for containment and neutralization is anchored on the intelligence and indicators of compromise spotted during the analysis step. Following the restoration of the system and verification of security, normal operations may continue. Post-Incident Activity After the incident has been resolved, there is still more work to do. Any information that can be used to stop similar problems in the future, must be documented. This step can be divided into the following: > incident report completion to enhance the incident response plan and avoid similar security issues in the future > ponst-incident monitoring to stop the reappearance of the threat actors > updates of threat intelligence feeds > identifying measures for preventive maintenance > improving coordination across the organization for proper implementation of new security methods