sigma-rules/rules/linux/execution_python_tty_shell.toml

[metadata]
creation_date = "2020/04/15"
integration = ["endpoint"]
maturity = "production"
updated_date = "2023/06/22"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"

[rule]
author = ["Elastic"]
description = """
Identifies when a terminal (tty) is spawned via Python. Attackers may upgrade a simple reverse shell to a fully
interactive tty after obtaining initial access to a host.
"""
from = "now-9m"
index = ["logs-endpoint.events.*"]
language = "eql"
license = "Elastic License v2"
name = "Interactive Terminal Spawned via Python"
risk_score = 73
rule_id = "d76b02ef-fc95-4001-9297-01cb7412232f"
severity = "high"
tags = ["Domain: Endpoint", "OS: Linux", "Use Case: Threat Detection", "Tactic: Execution", "Data Source: Elastic Endgame"]
timeline_id = "e70679c2-6cde-4510-9764-4823df18f7db"
timeline_title = "Comprehensive Process Timeline"
type = "eql"

query = '''
sequence with maxspan=1m
  [process where host.os.type == "linux" and event.type == "start" and process.name : "python*"] by process.entity_id
  [process where host.os.type == "linux" and event.type == "start" and 
   process.executable : "/bin/*sh"
  ] by process.parent.entity_id
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1059"
name = "Command and Scripting Interpreter"
reference = "https://attack.mitre.org/techniques/T1059/"

  [[rule.threat.technique.subtechnique]]
  id = "T1059.006"
  name = "Python"
  reference = "https://attack.mitre.org/techniques/T1059/006/"

[rule.threat.tactic]
id = "TA0002"
name = "Execution"
reference = "https://attack.mitre.org/tactics/TA0002/"