Deploying Edr Agent With Crowdstrike

---
name: Dağıt:ing-edr-agent-with-crowdstrike
description: Dağıt:s and configures CrowdStrike Falcon EDR agents across enterprise endpoints to enable real-time threat Tespit, behavioral analysis, and automated response. Use onboarding yaparken endpoints
  to EDR coverage, configuring Tespit policies, or integrating Falcon telemetry with SIEM platforms. Activates for requests involving CrowdStrike Dağıt:ment, Falcon sensor installation, EDR policy configuration,
  or endpoint Tespit and response.
tags:
- sensor-Dağıt:ment
- Falcon
- CrowdStrike
- endpoint-security
- fetih
- endpoint
- cybersecurity
- edr
- threat-Tespit
- siber-güvenlik
triggers:
- agent
- api
- cloud
- crowdstrike
- Dağıt:ing
- endpoint
- exploit
- forensic
- http
- incident
- log
- malware
category: endpoint-security
source_subdomain: endpoint-security
nist_csf:
- PR.PS-01
- PR.PS-02
- DE.CM-01
- PR.IR-01
adapted_for: fetih
---

# Dağıt:ing Edr Agent with Crowdstrike


## Ne Zaman Kullanılır

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

**Kullanma:** bu skill for Dağıt:ing other EDR solutions (Carbon Black, SentinelOne) or for Falcon cloud workload protection (use cloud-specific Dağıt:ment guides).

## Ön Gereksinimler

- 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)
- Dağıt:ment tool: SCCM, Intune, GPO, Ansible, or manual installation

## İş Akışı

### Adım 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>
```

### Adım 2: Dağıt: Falcon Sensor - Windows

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

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

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

**GPO Dağıt:ment**:
```powershell
$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
}
```

### Adım 3: Dağıt: Falcon Sensor - Linux

```bash
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

sudo yum install falcon-sensor-7.18.0-17106.el8.x86_64.rpm
sudo /opt/CrowdStrike/falconctl -s -f --cid=<YOUR_CID>
sudo systemctl start falcon-sensor
sudo systemctl enable falcon-sensor

sudo /opt/CrowdStrike/falconctl -g --rfm-state
```

### Adım 4: Dağıt: Falcon Sensor - macOS

```bash
sudo installer -pkg FalconSensorMacOS_7.18.pkg -target /

sudo /Applications/Falcon.app/Contents/Resources/falconctl license <YOUR_CID>


sudo /Applications/Falcon.app/Contents/Resources/falconctl stats
```

### Adım 5: Configure Prevention Policies

In Falcon Console, Şuraya git: Configuration → Prevention Policies:

**Recommended prevention policy settings**:
```
Machine Learning:
  - Cloud ML: Aggressive (extra protection, may increase false positives)
  - Sensor ML: Moderate
  - Adware & PUP: Moderate

Behavioral Protection:
  - On Write: Enabled (tespit etme
malware on file creation)
  - On Sensor ML: Enabled
  - Interpreter-Only: Enabled (tespit etme
script-based attacks)

Exploit Mitigation:
  - Exploit behavior protection: Enabled
  - Memory scanning: Enabled (tespit etme (s) in-memory attacks)
  - Code injection: Enabled

Ransomware:
  - Ransomware protection: Enabled
  - Shadow copy protection: Enabled
  - MBR protection: Enabled
```

**Create separate policies for**:
- Workstations (aggressive settings)
- Servers (moderate settings to avoid false positives on server workloads)
- Critical infrastructure (maximum protection with exception lists)

### Adım 6: Configure Response Policies

```
Real-Time Response:
  - Enable RTR for all sensor groups
  - Configure RTR admin vs. RTR responder roles
  - Enable script execution (for IR teams)
  - Enable file extraction (for forensics)

Network Containment:
  - Pre-authorize containment for specific host groups
  - Configure containment exclusions (allow management traffic)

Automated Response:
  - Enable automated remediation for high-confidence Tespits
  - Configure kill process action for ransomware Tespits
  - Enable quarantine for malware file Tespits
```

### Adım 7: Validate Dağıt:ment

```powershell
sc query csagent

reg query "HKLM\SYSTEM\CrowdStrike\{9b03c1d9-3138-44ed-9fae-d9f4c034b88d}\{16e0423f-7058-48c9-a204-725362b67639}\Default" /v AgentVersion

```

**Test Tespit capability**:
```powershell
.\CsTestDetect.exe
```

### Adım 8: SIEM Integration

```


```

## Key Concepts

| Term | Definition |
|------|-----------|
| **Falcon Sensor** | Lightweight kernel-mode agent (25-30 MB) that collects endpoint telemetry and enforces prevention policies |
| **CID (Customer ID)** | Unique identifier that associates the sensor with your CrowdStrike Falcon tenant |
| **RFM (Reduced Functionality Mode)** | State where sensor operates with limited capability due to cloud connectivity loss |
| **Sensor Grouping Tags** | Labels applied during installation to auto-assign hosts to groups and policies |
| **RTR (Real-Time Response)** | Remote shell capability for incident responders to interact with endpoints through Falcon |
| **IOA (Indicators of Attack)** | Behavioral Tespits based on adversary techniques rather than static signatures |

## Tools & Systems

- **CrowdStrike Falcon Console**: Cloud-hosted management platform for all Falcon modules
- **Falcon SIEM Connector**: Streams Tespit and audit events to SIEM platforms
- **Falcon Data Replicator (FDR)**: Streams raw endpoint telemetry to S3/cloud storage for hunting
- **CrowdStrike Falcon API (OAuth2)**: RESTful API for automation, integration, and custom workflows
- **PSFalcon**: PowerShell module for CrowdStrike Falcon API automation

## Common Pitfalls

- **Missing CID during installation**: Sensor installs but never connects to Falcon cloud. Always pass CID during install, not after.
- **Proxy not configured**: In environments with web proxies, configure proxy during installation: `/install /quiet CID=<CID> APP_PROXYNAME=proxy.corp.com APP_PROXYPORT=8080`.
- **macOS System Extension blocked**: macOS requires explicit approval for kernel/system extensions. Use MDM to pre-approve CrowdStrike extensions before Dağıt:ment.
- **Conflicting security products**: Running multiple EDR/AV products causes performance issues and false positives. Coordinate exclusions or remove legacy AV before Falcon Dağıt:ment.
- **Sensor version pinning**: Falcon auto-updates sensors by default. Pin sensor versions in the console for change-controlled environments before testing new versions.

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