# Threat Hunting

> Proactively hunt for attackers already inside.

Some threats slip past automated defenses. Our analysts proactively hunt across your environment for signs of compromise - living-off-the-land activity, persistence and lateral movement - using hypothesis-driven, ATT&CK-aligned techniques.

## Outcomes

- Hypothesis-driven hunts across the estate
- Detection of stealthy, living-off-the-land activity
- New detection rules from hunt findings
- Compromise assessment on request

## Process

01. **Hypothesize** - Define hunts from threat intel and ATT&CK.
02. **Hunt** - Search telemetry for adversary behavior.
03. **Confirm** - Validate findings and scope any compromise.
04. **Harden** - Convert hunts into durable detections.

## Deliverables

- Threat hunt report
- New detection content
- Compromise assessment (if any)

## Standards

MITRE ATT&CK, NIST CSF


## Overview

Automated security controls are designed to stop known threats, but sophisticated adversaries and stealthy insiders often bypass these systems using legitimate administrative tools and stolen credentials. Proactive threat hunting assumes a breach has occurred and searches for signs of active compromise.

Our threat hunting services deploy senior analysts to scour your endpoint, network, and cloud telemetry. Using hypothesis-driven methodologies and threat intelligence, we hunt for living-off-the-land techniques, persistence mechanisms, and anomalous data flows, providing you with concrete detection rules from our findings.


## What we cover

### Hypothesis-Driven Hunting
Crafting specific hunt scenarios based on current threat intelligence and adversary TPs.

### Endpoint Persistence Analysis
Searching registry keys, scheduled tasks, and startup folders for unauthorized persistence.

### Living off the Land Detection
Analyzing PowerShell, WMI, and administrative tool execution logs for anomalous parameters.

### Identity & Session Anomalies
Hunting for impossible travel, MFA bypass signals, and suspicious service account behaviors.

### Network Exfiltration Patterns
Analyzing DNS logs, web proxy traffic, and cloud egress flows for command-and-control signals.

### Compromise Assessments
Deploying lightweight forensic collectors to establish a clean bill of health before mergers or audits.


## FAQ

**Is this one-off or ongoing?**
Both - as a periodic engagement or a continuous service within our managed SOC.

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Request this service: https://a5cyber.com/contact?topic=Threat%20Hunting · All services: https://a5cyber.com/services/

