What Is Incident Response? 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. Here are the five important steps of an 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 people cannot effectively tackle an incident if there are no predetermined guidelines. There must be a strong plan 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 phase involves monitoring security events to detect as well issue warnings and report on security incidents in sight. * 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. * When reporting, there must be room for regulatory reporting escalations. Triage and Analysis This is where most of the effort in correctly scoping and understanding the security incident occurs. 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. People must have in-depth skills and a thorough understanding of digital forensics, live system responses, and memory and malware analysis. In collecting evidence, analysts have to concentrate on three core areas: a. Endpoint Analysis > Determine the tracks of the threat actor > Get artifacts necessary to the creation of 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 > Go through presently used systems and event log technologies and determine the extent 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. Containment and neutralization is based on the intelligence and compromise indicators found in the analysis stage. After system restoration and security verification, normal operations can continue. Post-Incident Activity More work must be done even after the incident is resolved. Any information that can be used to stop similar problems in the future, must be documented. This stage should 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 > improving coordination across the organization for proper implementation of new security methods