Replace Legacy Antivirus with CrowdStrike Falcon
Symantec · McAfee · Kaspersky → Next-Gen EDR
Legacy AV misses fileless attacks, zero-days, and lateral movement. CrowdStrike Falcon detects what signatures cannot — with a single lightweight agent, cloud-native AI, and real-time response. Ogma handles the full migration.
Legacy Antivirus Is No Longer Enough
Signature-based antivirus was designed for a world of known malware. Today, over 70% of attacks are malware-free — using PowerShell, WMI, legitimate admin tools, and stolen credentials. Your legacy AV does not see these attacks because there is no file to scan.
Legacy AV agents are heavy — 200-500 MB, consuming 5-15% CPU during scans, slowing down endpoints and frustrating users. Signature updates require constant bandwidth. Scan schedules create predictable windows when protection is weakest.
And when legacy AV does detect something, it only tells you what it blocked — not how the attacker got in, what they did before detection, or whether other endpoints are compromised. Without EDR capabilities, you are flying blind during an incident.
CrowdStrike Falcon — Cloud-Native Architecture
Single Lightweight Agent
One agent (25-50 MB) covers NGAV, EDR, device control, vulnerability management, and identity protection. No signature databases to download. No scheduled scans. Kernel-level visibility with minimal resource consumption.
Cloud-Native Platform
All analysis happens in CrowdStrike's Threat Graph cloud. No on-prem server infrastructure to maintain. Instant deployment, automatic updates, and global threat intelligence. Console accessible from any browser.
AI/ML Behavioural Detection
Machine learning models trained on trillions of events detect malicious behaviour — not just known signatures. Catches fileless attacks, living-off-the-land binaries (LOLBins), credential theft, and lateral movement in real-time.
CrowdStrike Falcon Modules
Start with what you need, add modules as you grow. All modules use the same single agent.
| Module | Capabilities | Best For |
|---|---|---|
| Falcon Go | NGAV (AI-powered prevention), device control (USB blocking) | Small orgs replacing legacy AV |
| Falcon Pro | Go + integrated threat intelligence, automated IOC hunting, firewall management | Mid-market with compliance needs |
| Falcon Enterprise | Pro + full EDR (Threat Graph), real-time response, managed threat hunting (Falcon OverWatch) | Enterprises needing full EDR + hunting |
| Falcon Elite | Enterprise + IT hygiene (Falcon Discover), vulnerability management (Falcon Spotlight), identity protection (Falcon Identity) | Mature security programs, BFSI compliance |
Deployment via Your Existing Tools
Microsoft Intune
Push Falcon sensor as a Win32 app or LOB app via Intune. Target device groups for phased rollout. Auto-deploy to new enrollments.
SCCM / MECM
Deploy via SCCM application or package. Target collections for staged rollout. Leverage existing SCCM infrastructure and compliance reporting.
Group Policy (GPO)
Deploy via GPO startup script for domain-joined machines. Simple and effective for environments without Intune or SCCM.
Linux / macOS
Deploy via Ansible, Puppet, Chef, or shell scripts for Linux. Jamf or MDM for macOS. Same Falcon console for all platforms.
Policy Migration & Exclusion Tuning
Moving from legacy AV to CrowdStrike is not just installing a new agent. Your existing AV has accumulated years of exclusions, custom scan policies, and scheduled tasks. We map these to CrowdStrike's prevention policy framework.
Exclusion tuning is where most EDR deployments succeed or fail. Over-tuning creates security gaps; under-tuning causes false positives that frustrate users and erode trust. We apply a systematic approach — pre-configured exclusions for known enterprise apps, followed by detect-only monitoring to catch environment-specific false positives.
Prevention policies are configured per endpoint group — servers get different settings than developer workstations, which get different settings than executive laptops. CrowdStrike's host groups and prevention policies make this granular control straightforward.
Common Pre-Configured Exclusions
- SAP application processes and data directories
- Oracle DB and middleware components
- Microsoft SQL Server data and log files
- Development tools (Visual Studio, IntelliJ, npm)
- Backup agents (Veeam, Commvault, Veritas)
- Monitoring agents (SCOM, Nagios, Zabbix)
- Build servers (Jenkins, GitLab Runner agents)
- Custom LOB applications identified during assessment
MITRE ATT&CK Coverage Validation
We validate that your CrowdStrike deployment detects real-world attack techniques mapped to the MITRE ATT&CK framework.
Initial Access & Execution
Phishing attachments, malicious macros, PowerShell downloaders, WMI execution, scheduled task creation. Falcon's NGAV + behaviour analysis catches techniques your legacy AV misses completely.
Lateral Movement & Persistence
Pass-the-hash, Kerberoasting, remote service execution, registry run keys, service creation. Falcon's Threat Graph correlates events across all endpoints to detect multi-stage attacks spanning multiple machines.
Exfiltration & Impact
Data staging, encrypted exfiltration, ransomware encryption behaviour. Falcon detects pre-encryption indicators and can auto-contain compromised endpoints before ransomware spreads.
Ogma's EDR Migration Process
Endpoint Assessment
Inventory all endpoints — OS versions, current AV product and version, existing exclusions, deployment tools available (Intune/SCCM/GPO). Identify legacy AV removal requirements (uninstall passwords, tamper protection). Map endpoint groups for policy assignment.
Falcon Tenant & Policy Setup
Provision CrowdStrike Falcon tenant. Configure prevention policies per endpoint group (servers, workstations, VIPs). Set up host groups, notification settings, and RBAC for your security team. Pre-configure known exclusions for your application stack.
Pilot Deployment (Detect-Only)
Deploy Falcon sensor to 50-100 pilot endpoints in detect-only mode alongside existing AV. Monitor detections for 1 week. Identify and resolve false positives. Tune exclusions based on real-world findings. Validate agent compatibility with all OS versions and applications.
Full Rollout (Detect-Only)
Push Falcon sensor to all remaining endpoints via Intune/SCCM/GPO in detect-only mode. Deploy in waves — 100-500 endpoints per wave with 48-hour validation between waves. Monitor Falcon console for anomalies and tune as needed.
Switch to Prevention + Remove AV
Switch Falcon to prevention mode (blocking enabled). Remove legacy AV from all endpoints using vendor removal tools (Norton Remove and Reinstall, McAfee MCPR, etc.). Validate Falcon is the sole endpoint protection on every machine.
Validation & Handover
Verify 100% sensor coverage across all endpoints. Configure dashboards and alerting. Train your security team on Falcon console, investigation workflows, and real-time response. Deliver deployment documentation. 30-day post-migration support included.
Why Ogma for EDR Migration
Authorised CrowdStrike Partner
Ogma is an authorised CrowdStrike partner in India. We handle licensing, deployment, and ongoing support. Competitive pricing on Falcon Go, Pro, Enterprise, and Elite subscriptions.
Offensive Security Expertise
We run VAPT and Breach & Attack Simulation (BAS) services. This offensive security experience means we know what attackers do — and we configure Falcon to detect exactly those techniques. We validate your EDR deployment with real attack simulations.
Full Security Stack
EDR is one piece of the puzzle. Ogma deploys CrowdStrike alongside FortiGate (network), Microsoft 365 E5 (email/identity), and managed SOC monitoring. We architect a defence-in-depth security posture, not just point products.
Frequently Asked Questions
Ready to Replace Legacy Antivirus?
Get a free EDR assessment. We audit your current endpoint security, recommend the right Falcon module, and give you a deployment timeline — no obligation.