Library / Windows

setup16.exe

MS-Setup Setup Exe · Microsoft Corporation

WindowsSysmon-confirmed

OriginalFilename

SETUP.EXE

Differs from file nameShared with other binaries

Gotchas

OriginalFilename doesn't match the file name: a rule using OriginalFileName: setup16.exe never fires.
Same OriginalFilename as setup.exe, so OriginalFilename alone can't tell them apart.

Query snippets

logsource:
  category: process_creation
  product: windows
detection:
  selection:
    - Image|endswith: '\setup16.exe'
    - OriginalFileName: 'SETUP.EXE'
  condition: selection

process_creation logsource. Sigma string matching is case-insensitive.

| tstats summariesonly=false count values(Processes.original_file_name) as original_file_name
    from datamodel=Endpoint.Processes
    where (Processes.original_file_name="SETUP.EXE" OR Processes.process_name="setup16.exe")
    by Processes.dest Processes.process_name Processes.process_path Processes.process
| rename Processes.* as *

Endpoint.Processes data model. On raw Sysmon events the field is OriginalFileName.

DeviceProcessEvents
| where ProcessVersionInfoOriginalFileName in~ ("SETUP.EXE")
    or FileName =~ "setup16.exe"

Microsoft Defender XDR advanced hunting. in~ and =~ are case-insensitive.

process where event.type == "start" and
  (process.pe.original_file_name in~ ("SETUP.EXE") or
   process.name : "setup16.exe")

ECS process.pe.original_file_name is a keyword field: in~ is case-insensitive, Kibana KQL is not.

['setup.exe'].includes(String(OriginalFileName || '').toLowerCase())

Filter expression (JavaScript) for events carrying Sysmon's OriginalFileName field.

Values across builds

OriginalFilename	Builds	Arch	File version	Windows releases	Source	Sysmon
SETUP.EXE	1	x86	3.1.0.1918		Host scan	✓ 1

OriginalFilename

Builds

Arch

File version

Windows releases

Source

Sysmon

SETUP.EXE

x86

3.1.0.1918

Host scan

✓ 1

InternalName: bootstrp · Product: Microsoft® Windows® Operating System

All 1 parsed builds

SHA256	Version	Arch	OriginalFilename	Windows releases	Signature	Source	Sysmon
f81343ae00b4…	3.1.0.1918	x86	SETUP.EXE			Host scan	✓

SHA256

Version

Arch

OriginalFilename

Windows releases

Signature

Source

Sysmon

f81343ae00b4…

3.1.0.1918

x86

SETUP.EXE

Host scan

✓

Winbindex builds link to the Microsoft symbol server copy that was hashed and parsed.