Junior Hacker Used Tailscale and OpenSSH to Keep Access After His C2 Went Offline
Summary
A junior hacker successfully breached a French automotive business, deploying a keylogger and stealing sensitive credentials. To maintain access after his command-and-control server failed, the attacker installed OpenSSH and Tailscale on the victim's machine, creating an alternative backdoor.
IFF Assessment
This article details a successful attacker tactic that bypasses typical defenses by establishing a persistent access channel using legitimate tools, representing a setback for defenders.
Defender Context
This incident highlights the risks associated with attackers leveraging legitimate tools like OpenSSH and Tailscale for persistence. Defenders should monitor for unusual installations of such software and implement strict access controls and network segmentation to limit lateral movement and maintain access even if primary C2 channels are disrupted.