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Elastic Docs ›Elastic Security Solution [8.8] ›Detections and alerts ›Prebuilt rule reference

Suspicious Utility Launched via ProxyChains

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Suspicious Utility Launched via ProxyChains

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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.

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: Command and Control
  • Data Source: Elastic Defend

Version: 3

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

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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")

Framework: MITRE ATT&CKTM

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