Pam Backdoor Exploits PAM Modules to Steal SSH Credentials from Linux Systems

Pam Backdoor Exploits PAM Modules to Steal SSH Credentials from Linux Systems

First seen 8 May 2026, 14:38 UTC ThehackernewsGbhackersCybersecuritynewsRescanaScworld 87% similarity 58.5

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A new backdoor, named Pam, has been identified targeting Linux systems by exploiting Pluggable Authentication Modules (PAM) to capture SSH credentials. This technique allows attackers to maintain persistence on compromised systems. The backdoor leverages the modular architecture of Linux, which has been in use since 1991, making it particularly stealthy and difficult to detect. The attack primarily affects Linux servers and workstations that utilize PAM for authentication. As of now, there are no specific CVEs or patches reported for this backdoor, and its full impact on the Linux community remains to be assessed. Security professionals are advised to monitor their systems closely for any signs of compromise. The threat level is considered significant due to the potential for widespread exploitation.

Key Points: • The Pam backdoor targets Linux systems by exploiting PAM modules to steal SSH credentials. • It allows attackers to maintain persistence on compromised systems, making detection challenging. • No specific CVEs or patches have been reported, indicating a need for heightened vigilance.

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Timeline

2026-05-08
Pam backdoor identified
Security researchers disclosed the Pam backdoor exploiting PAM modules to capture SSH credentials from Linux systems.
Gbhackers
2026-05-08
PamDOORa backdoor reported
The backdoor, referred to as PamDOORa, was highlighted for its stealthy operation and potential impact on Linux environments.
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