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Cyber Analysis 101
To look for hashes in your environment, you should check devices using an enterprise EDR or a similar solution with visibility into each connected device. But first, it is recommended to research the hash via a reputation tool such as VirusTotal – Home. To find IP addresses in your environment, use an enterprise SIEM solution…
Endpoint Analysis 101
Endpoint Analysis & Asset Investigation — L1 SOC Analyst Guide Overview This guide covers the initial steps for investigating endpoint alerts for the L1 Analyst onboarding. The focus is on determining whether a known malicious hash exists in the environment and identifying the affected device and its user. By the end of this section you…
Cyber Analysis 102
Endpoint Analysis & Asset Investigation — L1 SOC Analyst Guide Overview This guide covers the initial steps for investigating endpoint alerts for the L1 Analyst onboarding. The focus is on determining whether a known malicious hash exists in the environment and identifying the affected device and its user. By the end of this section you…
VirusTotal — Tool Overview
What is VirusTotal? VirusTotal is a free, web-based threat intelligence service that aggregates results from over 70 antivirus engines, URL scanners, and security vendors to analyze suspicious files, hashes, URLs, IP addresses, and domains. It is widely used across the security community as a quick and reliable reference point during threat investigations. No account or…
Standard Endpoint Investigation
Objective: Determine the distribution of a specific file across the environment to establish a baseline for the investigation. Exercise Note: For this instructional walkthrough, a Standard Reference MD5 Hash is utilized. This allows the Analyst to practice the workflow using a known, high-incidence file to ensure the system and parameters are responding as expected. Step…
The Triple Punch
Standard Endpoint Investigation Workflow Objective: To determine if a file is safe or malicious, find out who has it, and confirm if security controls (Antivirus) took action. Punch 1: The Inventory Hunt (Scope & Presence) Punch 2: The Reputation Check (Global Intel) Punch 3: The Log Audit (Security Action) Investigation Summary Checklist