AWS EC2 Forensic Investigation: Analyzing a RegreSSHion Compromise

When an AWS abuse report lands in your inbox about an EC2 instance running cryptocurrency mining malware, you know you’re in for an interesting investigation. This week, I conducted a complete forensic analysis of a compromised production server, and the findings highlight critical lessons about patch management, monitoring, and security hygiene. Initial Discovery The timeline started simple: AWS abuse report in December, 2025, about suspicious network activity. The client had already rebuilt a clean instance, but the compromised server remained running for forensic analysis. My task was to determine what happened, how it happened, and ensure the replacement was truly clean. ...

January 3, 2026 · 5 min · Me

Breaking the Docker Security Myth: CVE-2025-9074 and the Illusion of Container Isolation

The Wake-Up Call: CVE-2025-9074 A critical vulnerability recently discovered in Docker Desktop (CVE-2025-9074) serves as a sobering reminder that containers are not the security boundary many developers believe them to be. With a CVSS score of 9.3, this vulnerability allowed malicious containers to escape their supposed isolation and compromise the host system through a surprisingly simple attack vector. The Bottom Line Up Front: CVE-2025-9074 demonstrates that the widespread belief “Docker = isolated = secure” is not just wrong—it’s dangerously wrong. This misconception puts production Kubernetes environments at risk when teams fail to consider the underlying Linux kernel and operating system security implications. ...

September 13, 2025 · 8 min · Me