Suspicious Process Memory Dump Through Dotnet-Dump (via process_creation)

This rule detects the execution of "dotnet-dump" with the "collect" flag. The execution could indicate potential process dumping of critical processes such as LSASS.

SigmamediumWindowsv1
sigma
title: Suspicious Process Memory Dump Through Dotnet-Dump (via process_creation)
id: 5735b8ec-86fa-56f0-8c8a-d02a1a205dec
status: stable
description: This rule detects the execution of "dotnet-dump" with the "collect" flag. The execution could indicate potential process dumping of critical processes such as LSASS.
references:
    - https://attack.mitre.org/techniques/T1218/
    - https://learn.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-dump#dotnet-dump-collect
    - https://twitter.com/bohops/status/1635288066909966338
author: Huntrule Team
date: 2026-05-18
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:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.