Deep#Door Python Backdoor Targets Windows Systems for Credential Theft

• •Deep#Door uses an obfuscated batch script to deploy a persistent backdoor on Windows systems.
• •The malware disables security controls and communicates via a public TCP tunneling service.
• •It targets sensitive data including browser passwords, cloud tokens, and SSH keys.

Deep#Door is a newly discovered Python-based backdoor targeting Windows systems, identified by Securonix. It employs an obfuscated batch script to deploy a persistent implant capable of long-term surveillance and credential theft. The malware disables Windows security features and uses a public TCP tunneling service to obscure its communications. Key targets include browser passwords, cloud tokens, SSH keys, and Wi-Fi credentials. Deep#Door's stealthy nature allows it to blend malicious activity with legitimate system behavior, complicating detection efforts. It features multiple persistence mechanisms and anti-analysis techniques, making it difficult to remove once installed. The malware can also cause system crashes and overwrite boot records, indicating potential for disruptive attacks. Currently, it poses a significant threat to Windows users, particularly in enterprise environments.