Windows Process Creation: dotnet-dump.exe collect Flag

Flags dotnet-dump.exe executions using the collect parameter, which may indicate memory dumping of sensitive processes.

FreeReviewedSigma · Medium · v2
Product
windows
Category
process_creation
Author
Nasreddine Bencherchali (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2023-03-14
Updated
2026-07-31
title: "Windows Process Creation: dotnet-dump.exe collect Flag"
id: a4daaa48-8f2e-41e6-8756-dd910da1ae55
status: test
description: This rule flags executions of dotnet-dump where the image is dotnet-dump.exe and the command line includes the collect flag. Attackers can use process dump tooling to capture memory from running processes, which may expose sensitive data. The detection relies on Windows process creation telemetry including the executable filename and command-line arguments.
references:
  - https://learn.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-dump#dotnet-dump-collect
  - https://twitter.com/bohops/status/1635288066909966338
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_dotnetdump_memory_dump.yml
author: Nasreddine Bencherchali (Nextron Systems), Huntrule Team
date: 2023-03-14
tags:
  - attack.stealth
  - attack.t1218
logsource:
  category: process_creation
  product: windows
detection:
  selection_img:
    - Image|endswith: \dotnet-dump.exe
    - OriginalFileName: dotnet-dump.dll
  selection_cli:
    CommandLine|contains: collect
  condition: all of selection_*
falsepositives:
  - Process dumping is the expected behavior of the tool. So false positives are expected in legitimate usage. The PID/Process Name of the process being dumped needs to be investigated
level: medium
license: DRL-1.1
related:
  - id: 53d8d3e1-ca33-4012-adf3-e05a4d652e34
    type: derived