SSH Access

SSH (Secure Shell) is a cryptographic network protocol used for secure remote access, command execution, and data transfer. Attackers target SSH services as a primary vector for gaining initial access to networks and systems. The exploitation occurs through various methods including brute force attacks against weak credentials, leveraging stolen SSH keys, exploiting vulnerabilities in SSH implementations, or using credentials obtained through other means such as phishing or credential dumping. Once an attacker successfully authenticates to an SSH service, they typically gain shell access with the privileges of the compromised account, allowing them to execute commands, access files, and potentially pivot to other systems within the network. SSH access is particularly valuable to attackers because it is often allowed through firewalls for legitimate administrative purposes, provides encrypted communications that can hide malicious activity, and may grant persistent access that survives system reboots.