[metadata]
creation_date = "2023/08/23"
integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/08/23"

[rule]
author = ["Elastic"]
description = """
This rule monitors for the execution of suspicious linux tools through ProxyChains. ProxyChains is a command-line tool
that enables the routing of network connections through intermediary proxies, enhancing anonymity and enabling access to
restricted resources. Attackers can exploit the ProxyChains utility to hide their true source IP address, evade detection,
and perform malicious activities through a chain of proxy servers, potentially masking their identity and intentions.
"""
from = "now-9m"
index = ["logs-endpoint.events.*"]
language = "eql"
license = "Elastic License v2"
name = "Suspicious Utility Launched via ProxyChains"
references = ["https://blog.bitsadmin.com/living-off-the-foreign-land-windows-as-offensive-platform"]
risk_score = 21
rule_id = "6ace94ba-f02c-4d55-9f53-87d99b6f9af4"
severity = "low"
tags = ["Domain: Endpoint", "OS: Linux", "Use Case: Threat Detection", "Tactic: Command and Control", "Data Source: Elastic Defend"]
timestamp_override = "event.ingested"
type = "eql"
query = '''
process where host.os.type == "linux" and event.action == "exec" and event.type == "start" and 
process.name == "proxychains" and process.args : (
  "ssh", "sshd", "sshuttle", "socat", "iodine", "iodined", "dnscat", "hans", "hans-ubuntu", "ptunnel-ng",
  "ssf", "3proxy", "ngrok", "gost", "pivotnacci", "chisel*", "nmap", "ping", "python*", "php*", "perl", "ruby",
  "lua*", "openssl", "nc", "netcat", "ncat", "telnet", "awk", "java", "telnet", "ftp", "curl", "wget")
'''

[[rule.threat]]
framework = "MITRE ATT&CK"

[[rule.threat.technique]]
id = "T1572"
name = "Protocol Tunneling"
reference = "https://attack.mitre.org/techniques/T1572/"

[rule.threat.tactic]
id = "TA0011"
name = "Command and Control"
reference = "https://attack.mitre.org/tactics/TA0011/"