Sigma rule: Curl Download And Execute Combination

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-8a3f317996f1, updated 2024-03-05T00:00:00.000Z.

Rule

Title
Curl Download And Execute Combination
Status
test
Level
high
Author
Sreeman, Nasreddine Bencherchali (Nextron Systems)
Date
2020-01-13
Modified
2024-03-05
File
rules/windows/process_creation/proc_creation_win_cmd_curl_download_exec_combo.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Adversaries can use curl to download payloads remotely and execute them. Curl is included by default in Windows 10 build 17063 and later.

Log source

product
windows
category
process_creation

Detection

selection:
    CommandLine|contains|windash: ' -c '
    CommandLine|contains|all:
        - 'curl '
        - 'http'
        - '-o'
        - '&'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.stealth
  • attack.t1218
  • attack.command-and-control
  • attack.t1105

MITRE ATT&CK ids this rule names

References

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

Sources and licences

  • SigmaHQ

    "Curl Download And Execute Combination" by Sreeman, Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_cmd_curl_download_exec_combo.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: Curl Download And Execute Combination",
entity page, dataset version ref-8a3f317996f1, updated 2024-03-05T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/21dd6d38-2b18-4453-9404-a0fe4a0cc288 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 21dd6d38-2b18-4453-9404-a0fe4a0cc288, 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.