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What Is Incident Response? Incident response is not an isolated event, but rather a process. For incident response to be truly successful, teams have to use an integrated and organized method to tackle any incident. Here are the five important steps of an effective incident response program: Preparation
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At the core of every incident response program that works, is preparation. Even the best incident response group cannot tackle an incident effectively when there are no 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. * To monitor of security events in the environment, the team can use firewalls, and set up data loss and intrusion prevention systems. * Detection of potential security incidents is done by by correlating alerts within a Security Information and Event Management (SIEM) solution. * Prior to issuing alerts, analysts make an incident ticket, document their initial findings, and then designate an initial incident classification. * A report must leave space for regulatory reporting escalations. Triage and Analysis This is where most of the effort in correctly scoping and understanding the security incident occurs. Resources need to be utilized for data gathering from tools and systems for further examination, and also to identify compromise indicators. Team members must be very skilled and knowledgeable in live system responses and digital forensics, along with malware and memory analysis. As evidence is gathered, analysts must concentrate focus on three main areas: a. Endpoint Analysis > Know the tracks the threat actor may have left behind > Get artifacts necessary to the creation of a timeline of activities > Conduct a forensic analysis of a detailed copy of systems, and have RAM scan through and point to key artifacts to know what transpired on a device b. Binary Analysis > Look into malicious binaries or tools used by the attacker and document the capabilities of such programs. Enterprise Hunting > Go through presently used systems and event log technologies and determine the extent of compromise. incident report completion to enhance the incident response plan and avoid similar security issues in the future > post-incident monitoring to keep threat actors from reappearing > updates of threat intelligence feeds > identifying measures for preventive maintenance > improving internal coordination in the organization to implement new security measures properly