Binary Executed from Shared Memory Directory
editBinary Executed from Shared Memory Directory
editIdentifies the execution of a binary by root in Linux shared memory directories: (/dev/shm/, /run/shm/, /var/run/, /var/lock/). This activity is to be considered highly abnormal and should be investigated. Threat actors have placed executables used for persistence on high-uptime servers in these directories as system backdoors.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- endgame-*
Severity: high
Risk score: 73
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Linux
- Threat Detection
- Execution
- BPFDoor
- Elastic Endgame
Version: 103
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editprocess where event.type == "start" and event.action : ("exec", "exec_event") and user.name == "root" and process.executable : ( "/dev/shm/*", "/run/shm/*", "/var/run/*", "/var/lock/*" ) and not process.executable : ( "/var/run/docker/*")
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: Command and Scripting Interpreter
- ID: T1059
- Reference URL: https://attack.mitre.org/techniques/T1059/