Detection rules › Sigma

MpiExec Lolbin

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

Detects a certain command line flag combination used by mpiexec.exe LOLBIN from HPC pack that can be used to execute any other binary

MITRE ATT&CK coverage

Telemetry coverage

ProviderRecord / event type
SysmonEvent ID 1: Process creation

Rule body

title: MpiExec Lolbin
id: 729ce0ea-5d8f-4769-9762-e35de441586d
status: test
description: Detects a certain command line flag combination used by mpiexec.exe LOLBIN from HPC pack that can be used to execute any other binary
references:
    - https://twitter.com/mrd0x/status/1465058133303246867
    - https://learn.microsoft.com/en-us/powershell/high-performance-computing/mpiexec?view=hpc19-ps
author: Florian Roth (Nextron Systems)
date: 2022-01-11
modified: 2024-11-23
tags:
    - attack.execution
    - attack.stealth
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection_binary:
        - Image|endswith: '\mpiexec.exe'
        - Hashes|contains: 'IMPHASH=d8b52ef6aaa3a81501bdfff9dbb96217'
    selection_flags:
        CommandLine|contains:
            - ' /n 1 '
            - ' -n 1 '
    condition: all of selection*
falsepositives:
    - Unknown
level: high

Stages and Predicates

Stage 0: condition

all of selection*

Stage 1: selection_binary

selection_binary:
    - Image|endswith: '\mpiexec.exe'
    - Hashes|contains: 'IMPHASH=d8b52ef6aaa3a81501bdfff9dbb96217'

Stage 2: selection_flags

selection_flags:
    CommandLine|contains:
        - ' /n 1 '
        - ' -n 1 '

Indicators

These rows show field, operator, and value matches.