add new rule for os credential dumping in linux #5044
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Summary of the Pull Request
Add new rule for os credential dumping detection.
Adversaries might try to access these files to obtain sensitive information. If they can read /etc/passwd, they can see usernames and, if they can also access /etc/shadow, they can attempt to crack the hashed passwords offline.
Changelog
Example Log Event
Fixed Issues
SigmaHQ Rule Creation Conventions