Detection rules › Sigma

Renamed SysInternals DebugView Execution

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

Detects suspicious renamed SysInternals DebugView execution

MITRE ATT&CK coverage

TacticTechniques
Resource Development

Telemetry coverage

ProviderRecord / event type
SysmonEvent ID 1: Process creation

Rule body

title: Renamed SysInternals DebugView Execution
id: cd764533-2e07-40d6-a718-cfeec7f2da7f
status: test
description: Detects suspicious renamed SysInternals DebugView execution
references:
    - https://www.epicturla.com/blog/sysinturla
author: Florian Roth (Nextron Systems)
date: 2020-05-28
modified: 2023-02-14
tags:
    - attack.resource-development
    - attack.t1588.002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Product: 'Sysinternals DebugView'
    filter:
        OriginalFileName: 'Dbgview.exe'
        Image|endswith: '\Dbgview.exe'
    condition: selection and not filter
falsepositives:
    - Unknown
level: high

Stages and Predicates

Stage 0: condition

selection and not filter

Stage 1: selection

selection:
    Product: 'Sysinternals DebugView'

Stage 2: not filter

filter:
    OriginalFileName: 'Dbgview.exe'
    Image|endswith: '\Dbgview.exe'

Exclusions

The rule actively suppresses these predicates.

FieldKindExcluded valuesSearch
Imageends_with\Dbgview.exeexcludes:Image field:"Image" value:"\Dbgview.exe"
OriginalFileNameeqDbgview.exeexcludes:OriginalFileName field:"OriginalFileName" value:"Dbgview.exe"

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
Producteq
  • Sysinternals DebugView
field:"Product" kind:eq value:"Sysinternals DebugView"