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Linux Auditd Find Credentials From Password Stores

The following analytic detects suspicious attempts to find credentials stored in password stores, indicating a potential attacker's effort to access sensitive login information. Password stores are critical repositories that contain valuable credentials, and unauthorized access to them can lead to significant security breaches. By monitoring for unusual or unauthorized activities related to password store access, this analytic helps identify potential credential theft attempts, allowing security teams to respond promptly and prevent unauthorized access to critical systems and data.

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Detection Logic

`linux_auditd` execve_command IN ("*find*", "*grep*") 
AND execve_command IN ("*password*", "*pass *", "*credential*", "*creds*")
| rename host as dest
| rename comm as process_name
| rename exe as process
| stats count min(_time) as firstTime max(_time) as lastTime
    BY argc execve_command dest
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `linux_auditd_find_credentials_from_password_stores_filter`

False Positives

  • Administrator or network operator can use this application for automation purposes. Please update the filter macros to remove false positives.

Field Validations

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