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Suspicious JAR Child Process

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Suspicious JAR Child Process

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Identifies suspicious child processes of a Java Archive (JAR) file. JAR files may be used to deliver malware in order to evade detection.

Rule type: eql

Rule indices:

auditbeat-*
logs-endpoint.events.*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References: None

Tags:

Elastic
Host
Linux
macOS
Threat Detection
Execution

Version: 2

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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process where event.type in ("start", "process_started") and
  process.parent.name : "java" and
  process.name : ("sh", "bash", "dash", "ksh", "tcsh", "zsh", "curl", "wget") and
  process.args : "-jar" and process.args : "*.jar" and
  /* Add any FP's here */
  not process.executable : ("/Users/*/.sdkman/*", "/Library/Java/JavaVirtualMachines/*") and
  not process.args : ("/usr/local/*", "/Users/*/github.com/*", "/Users/*/src/*")

Framework: MITRE ATT&CK^TM

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/
Sub-technique:
- Name: JavaScript
- ID: T1059.007
- Reference URL: https://attack.mitre.org/techniques/T1059/007/

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