If you suspect an infostealer is active in your environment, immediate response is critical. These infections often go undetected by traditional tools — while silently leaking credentials, session tokens, and business data. Attackers can act within minutes.

Based on real-world incident patterns, we’ve created a detailed, step-by-step response guide for security teams. It outlines exactly how to contain an infection, investigate exposure, and regain control — with clear technical steps and a printable checklist.

Here’s the core framework:

1. Revoke access immediately — Disable affected accounts, force logouts, and invalidate session tokens across internal systems and cloud platforms.

2. Investigate potential misuse — Review logs for suspicious logins, lateral movement, or data access.

3. Clean the infected device — Scan with EDR tools or reimage the machine to eliminate persistence.

4. Reset credentials — Treat all passwords and session tokens as compromised.

5. Strengthen long-term defenses — Improve visibility, reduce reliance on unmanaged devices, and close detection gaps.

We’re making this guide freely available — no forms, no emails.
Because when infostealers strike, every minute counts.

📄 Download the full Infostealer Response Guide