IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Suspicious /proc/maps Discovery
editSuspicious /proc/maps Discovery
editMonitors for /proc//maps file reads. The /proc//maps file in Linux provides a memory map for a specific process, detailing the memory segments, permissions, and what files are mapped to these segments. Attackers may read a process’s memory map to identify memory addresses for code injection or process hijacking.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
Severity: low
Risk score: 21
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Endpoint
- OS: Linux
- Use Case: Threat Detection
- Tactic: Discovery
- Data Source: Elastic Defend
Version: 1
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editprocess where host.os.type == "linux" and event.action == "exec" and event.type == "start" and process.name in ("cat", "grep") and process.args : "/proc/*/maps" and process.entry_leader.name in ( "bash", "dash", "sh", "tcsh", "csh", "zsh", "ksh", "fish" )
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Process Discovery
- ID: T1057
- Reference URL: https://attack.mitre.org/techniques/T1057/