Sigma rule: Connection Proxy

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-de6141517aef, updated 2022-10-05T00:00:00.000Z.

Rule

Title
Connection Proxy
Status
test
Level
low
Author
Ömer Günal
Date
2020-06-17
Modified
2022-10-05
File
rules/linux/process_creation/proc_creation_lnx_proxy_connection.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects setting proxy configuration

Log source

product
linux
category
process_creation

Detection

selection:
    CommandLine|contains:
        - 'http_proxy='
        - 'https_proxy='
condition: selection

False positives (as the rule lists them)

  • Legitimate administration activities

Tags

  • attack.command-and-control
  • attack.t1090

MITRE ATT&CK ids this rule names

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/process_creation/proc_creation_lnx_proxy_connection.yml

Sources and licences

  • SigmaHQ

    "Connection Proxy" by Ömer Günal (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/process_creation/proc_creation_lnx_proxy_connection.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Connection Proxy",
entity page, dataset version ref-de6141517aef, updated 2022-10-05T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/72f4ab3f-787d-495d-a55d-68c2ff46cf4c (accessed 2026-11-03).
Underlying source: SigmaHQ rule 72f4ab3f-787d-495d-a55d-68c2ff46cf4c, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.