Windows: Stracciatella.exe Process Execution Identification (SharpPick behavior)

Alerts on Windows process creation for Stracciatella.exe using PE metadata and known SHA256 hashes.

FreeReviewedSigma · High · v2
Product
windows
Category
process_creation
Author
pH-T (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2023-04-17
Updated
2026-07-31
title: "Windows: Stracciatella.exe Process Execution Identification (SharpPick behavior)"
id: 00edb33e-e8d6-49fa-96b4-9f21f3101a6d
status: test
description: This rule flags process creation events where the executable matches Stracciatella.exe by filename, PE metadata (OriginalFileName/Description), or specific SHA256 hashes. Stracciatella is used to execute a PowerShell runspace from within C# (SharpPick technique), which can help attackers execute PowerShell while attempting to impair defenses. Detection relies on Windows process creation telemetry plus image path and PE metadata fields, or hash values, as provided by the environment.
references:
  - https://github.com/mgeeky/Stracciatella
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_hktl_stracciatella_execution.yml
author: pH-T (Nextron Systems), Huntrule Team
date: 2023-04-17
modified: 2024-11-23
tags:
  - attack.execution
  - attack.defense-impairment
  - attack.t1059
  - attack.t1685
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    - Image|endswith: \Stracciatella.exe
    - OriginalFileName: Stracciatella.exe
    - Description: Stracciatella
    - Hashes|contains:
        - SHA256=9d25e61ec1527e2a69d7c2a4e3fe2fe15890710c198a66a9f25d99fdf6c7b956
        - SHA256=fd16609bd9830c63b9413671678bb159b89c357d21942ddbb6b93add808d121a
  condition: selection
falsepositives:
  - Unlikely
level: high
license: DRL-1.1
related:
  - id: 7a4d9232-92fc-404d-8ce1-4c92e7caf539
    type: derived