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Potential Linux Credential Dumping via Proc Filesystem
Sep 19, 2026 · Domain: Endpoint OS: Linux Use Case: Threat Detection Tactic: Credential Access Use Case: Vulnerability Data Source: Elastic Defend Data Source: SentinelOne Data Source: Elastic Endgame Resources: Investigation Guide Noise: High Performance: Normal Profile: Aggressive Threat: Vulnerability Exploit Rule Type: Event Correlation (EQL) Platform: Linux Vuln: CVE-2018-20781 ·Identifies the execution of the mimipenguin exploit script which is linux adaptation of Windows tool mimikatz. Mimipenguin exploit script is used to dump clear text passwords from a currently logged-in user. The tool exploits a known vulnerability CVE-2018-20781. Malicious actors can exploit the cleartext credentials in memory by dumping the process and extracting lines that have a high probability of containing cleartext passwords.
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