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Detection rules › Sigma

HackTool - Dumpert Process Dumper Execution

Status
test
Severity
critical
Log source
product windows, category process_creation
Author
Florian Roth (Nextron Systems)
Source
github.com/SigmaHQ/sigma

Detects the use of Dumpert process dumper, which dumps the lsass.exe process memory

MITRE ATT&CK coverage

TacticTechniques
Credential AccessT1003.001 OS Credential Dumping: LSASS Memory

Event coverage

ProviderEventTitle
SysmonEvent ID 1Process creation

Rule body yaml

title: HackTool - Dumpert Process Dumper Execution
id: 2704ab9e-afe2-4854-a3b1-0c0706d03578
status: test
description: Detects the use of Dumpert process dumper, which dumps the lsass.exe process memory
references:
    - https://github.com/outflanknl/Dumpert
    - https://unit42.paloaltonetworks.com/actors-still-exploiting-sharepoint-vulnerability/
author: Florian Roth (Nextron Systems)
date: 2020-02-04
modified: 2025-01-22
tags:
    - attack.credential-access
    - attack.t1003.001
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Hashes|contains: 'MD5=09D278F9DE118EF09163C6140255C690'
        - CommandLine|contains: 'Dumpert.dll'
    condition: selection
falsepositives:
    - Very unlikely
level: critical

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    - Hashes|contains: 'MD5=09D278F9DE118EF09163C6140255C690'
    - CommandLine|contains: 'Dumpert.dll'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
CommandLinematch
  • Dumpert.dll corpus 2 (sigma 1, chronicle 1)
Hashesmatch
  • MD5=09D278F9DE118EF09163C6140255C690