A Professional Guide For Responding to a Network Breach, System Breach, or Hack

Digital First Aid:

A Professional Guide For Responding to a Network or System Breach, and/or Hack

Discovering a security breach is a high-stakes race against time. Whether you are a home user or a business owner, your response in the first few hours determines whether the attacker is evicted or stays for the long haul.

Suspicious Network & Endpoint Activity Investigation Guide

Suspicious Network & Endpoint Activity Investigation Guide

This guide combines a structured documentation checklist with an actionable toolkit in PowerShell and Python to help rapidly investigate and respod to suspicious activity on a Windows-based endpoint. It includes tutorials for all tools and programs mentioned.

Documentation, Triage/Remediation & Reporting Structure

1. Initial Triage & Observation

Symptoms Observed: 

• Unexpected outbound connections
• CPU/disk spikes
• Unknown open ports
• Software behaving erratically
• System slowdown
• Time & Date Logged
• System(s) Affected: IP address / Hostname
• Alert Source Verficication/Review:
• User report
• SIEM
• EDR alert
• IDS/IPS
• Valid Security Alert (OS/AV)
• Etc.