deploying-edr-agent-with-crowdstrike

The saved excerpt is a snapshot from review. The external source remains the complete and most current version.

---
name: deploying-edr-agent-with-crowdstrike
description: 'Deploys and configures CrowdStrike Falcon EDR agents across enterprise
  endpoints to enable real-time threat detection, behavioral analysis, and automated
  response. Use when onboarding endpoints to EDR coverage, configuring detection policies,
  or integrating Falcon telemetry with SIEM platforms. Activates for requests involving
  CrowdStrike deployment, Falcon sensor installation, EDR policy configuration, or
  endpoint detection and response.

  '
domain: cybersecurity
subdomain: endpoint-security
tags:
- endpoint
- edr
- CrowdStrike
- Falcon
- threat-detection
- sensor-deployment
version: 1.0.0
author: mahipal
license: Apache-2.0
nist_ai_rmf:
- GOVERN-1.1
- MEASURE-2.7
- MANAGE-3.1
- MAP-5.1
- MANAGE-2.4
atlas_techniques:
- AML.T0070
- AML.T0066
- AML.T0082
nist_csf:
- PR.PS-01
- PR.PS-02
- DE.CM-01
- PR.IR-01
mitre_attack:
- T1003.001
- T1055
- T1059.001
- T1486
- T1071.001
---
# Deploying EDR Agent with CrowdStrike

## When to Use

Use this skill when:
- Deploying CrowdStrike Falcon sensors to Windows, macOS, or Linux endpoints
- Configuring Falcon prevention and detection policies for different endpoint groups
- Integrating CrowdStrike telemetry with SIEM (Splunk, Elastic, Sentinel) for correlated detection
- Troubleshooting sensor connectivity, performance, or detection issues

**Do not use** this skill for deploying other EDR solutions (Carbon Black, SentinelOne) or for Falcon cloud workload protection (use cloud-specific deployment guides).

## Prerequisites

- CrowdStrike Falcon console access with Falcon Administrator role
- Customer ID (CID) and Falcon sensor installer package
- Administrative/root access on target endpoints
- Network access: endpoints must reach CrowdStrike cloud (ts01-b.cloudsink.net on port 443)
- Deployment tool: SCCM, Intune, GPO, Ansible, or manual installation

## Workflow

### Step 1: Obtain Falcon Sensor Installer and CID

```
1. Log into Falcon Console: https://falcon.crowdstrike.com
2. Navigate: Host setup and management → Sensor downloads
3. Download the appropriate installer:
   - Windows: WindowsSensor_<version>.exe
   - macOS: FalconSensorMacOS_<version>.pkg
   - Linux: falcon-sensor_<version>_amd64.deb / .rpm
4. Copy the Customer ID (CID) from the Sensor downloads page
   - CID format: <32-char-hex>-<2-char-checksum>
```

### Step 2: Deploy Falcon Sensor - Windows

**Silent installation via command line**:
```cmd
WindowsSensor_7.18.17106.exe /install /quiet /norestart CID=<YOUR_CID>
```

**SCCM deployment**:
```
1. Create an Application in SCCM
2. Deployment type: Script Installer
3. Install command: WindowsSensor_7.18.17106.exe /install /quiet /norestart CID=<CID>
4. Detection method: Registry key exists
   - HKLM\SYSTEM\CrowdStrike\{9b03c1d9-3138-44ed-9fae-d9f4c034b88d}\{16e0423f-7058-48c9-a204-725362b67639}\Default
5. Deploy to target collection
6. Deployment purpose: Required (for mandatory installation)
```

**Microsoft Intune deployment**:
```
1. Navigate: Devices → Windows → Configuration profiles
2. Create Win32 app deployment
3. Upload .intunewin package (wrapped sensor installer)
4. Install command: WindowsSensor_7.18.17106.exe /install /quiet /norestart CID=<CID>
5. Detection rule: File exists C:\Windows\System32\drivers\CrowdStrike\csagent.sys
6. Assign to device group
```

**GPO deployment**:
```powershell
# Create startup script that checks for existing installation
$sensorPath = "C:\Windows\System32\drivers\CrowdStrike\csagent.sys"
if (-not (Test-Path $sensorPath)) {
    Start-Process -FilePath "\\fileserver\CrowdStrike\WindowsSensor.exe" `
      -ArgumentList "/install /quiet /norestart CID=<CID>" -Wait
}
```

### Step 3: Deploy Falcon Sensor - Linux

```bash
# Debian/Ubuntu
sudo dpkg -i falcon-sensor_7.18.0-17106_amd64.deb
sudo /opt/CrowdStrike/falconctl -s -f --cid=<YOUR_CID>
sudo systemctl start falcon-sensor
sudo systemctl enable falcon-sensor

# RHEL/CentOS
sudo yum install falcon-sensor-7.18.0-171