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An Overview of the Incident Response Process Incident response is not an isolated event, but rather a process. To make incident response successful, teams need to use a harmonized and organized strategy to approach any incident. Below are the five main steps that make a reliable effective incident response program: Preparation
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Preparation is the key most crucial ingredient of an incident response program that works. Even the best men cannot work effectively without preset guidelines. A solid plan should be there to support the team. To successfully address security events, this plan should include four elements: IR policy development and documentation, communication guidelines, threat intelligence feeds, and cyber hunting exercises.
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Detection and Reporting This part is concerned with monitoring security events for detecting, alerting and reporting foreseen 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 issuing alerts, analysts create an incident ticket, document preliminary findings, and set a preliminary initial incident category. * When reporting, there must be room for regulatory reporting escalations. Triage and Analysis This is where most efforts to properly scope and understand the security incident takes place. Resources have to be utilized for the collection of data from tools and systems for more extensive analysis, as well as to find indicators of compromise. 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 left by the threat actor > Get the artifacts required to create a timeline of activities > 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 machines, accounts, etc. that may have been compromised for damage containment and neutralization. Containment and Neutralization This is among the most crucial 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 Even after the incident is resolved, more work must be done. Any information that can be used to stop similar problems in the future, must be documented. This step can be divided into the following: > completion of incident report to improve the incident response plan and prevent similar security incidents in the future > ponst-incident monitoring to stop the reappearance of the threat actors > updates of threat intelligence feeds > identifying preventative measures> identifying preventative techniques > enhancing coordination within the organization for effective implementation of new security approach