Elastic high stable eql

Manual Memory Dumping via Proc Filesystem

This rule monitors for manual memory dumping via the proc filesystem. The proc filesystem in Linux provides a virtual filesystem that contains information about system processes and their memory mappings. Attackers may use this technique to dump the memory of a process, potentially extracting sensitive information such as credentials or encryption keys.

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Detection Logic

process where host.os.type == "linux" and event.type == "start" and event.action in ("exec", "exec_event", "start", "ProcessRollup2", "executed", "process_started") and
process.name in ("cat", "grep", "tail", "less", "more", "egrep", "fgrep") and process.command_line like "/proc/*/mem"

Field Validations

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