Sigma rule: Small Sieve Malware CommandLine Indicator

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-3ec7881f71b2, updated 2023-05-19T00:00:00.000Z.

Rule

Title
Small Sieve Malware CommandLine Indicator
Status
test
Level
high
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2023-05-19
File
rules-emerging-threats/2021/Malware/Small-Sieve/proc_creation_win_malware_small_sieve_cli_arg.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects specific command line argument being passed to a binary as seen being used by the malware Small Sieve.

Log source

product
windows
category
process_creation

Detection

selection:
    CommandLine|endswith: '.exe Platypus'
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.privilege-escalation
  • attack.persistence
  • attack.execution
  • attack.stealth
  • attack.t1574.001
  • detection.emerging-threats

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-emerging-threats/2021/Malware/Small-Sieve/proc_creation_win_malware_small_sieve_cli_arg.yml

Sources and licences

  • SigmaHQ

    "Small Sieve Malware CommandLine Indicator" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2021/Malware/Small-Sieve/proc_creation_win_malware_small_sieve_cli_arg.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: Small Sieve Malware CommandLine Indicator",
entity page, dataset version ref-3ec7881f71b2, updated 2023-05-19T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/21117127-21c8-437a-ae03-4b51e5a8a088 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 21117127-21c8-437a-ae03-4b51e5a8a088, 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.