: Copy the encoded string and decode it using a tool like CyberChef or the terminal: echo "ENCODED_STRING" | base64 -d Use code with caution. Copied to clipboard 4. Retrieving the Flag
: A service file (often named something innocuous like persistence.service or backup.service ) contains an ExecStart directive pointing to a suspicious script or command. 3. Decoding the Payload 54623.rar
: An attacker gained access to a server and established a way to maintain access. You are provided with a compressed archive of system files (often including /etc/ , /var/log/ , or specific configuration directories). Step-by-Step Write-up 1. Extraction and Initial Analysis : Copy the encoded string and decode it
: Once extracted, you will find a directory structure mimicking a Linux root filesystem. The focus is usually on common persistence locations like cron jobs, systemd services, or shell profiles ( .bashrc ). 2. Identifying the Persistence Mechanism Step-by-Step Write-up 1
The file is a password-protected archive associated with the "Persistence" challenge from the 2024 HTB (Hack The Box) Cyber Apocalypse CTF (Capture The Flag) . Challenge Overview Category : Forensics / Incident Response