Library / Windows
tiworker.exe
Windows Modules Installer Worker · Microsoft Corporation
WindowsParsedSigma refs: 8
OriginalFilename
TiWorker.exe
Query snippets
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\tiworker.exe'
- OriginalFileName: 'TiWorker.exe'
condition: selectionprocess_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="TiWorker.exe" OR Processes.process_name="tiworker.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~ ("TiWorker.exe")
or FileName =~ "tiworker.exe"Microsoft Defender XDR advanced hunting. in~ and =~ are case-insensitive.
process where event.type == "start" and
(process.pe.original_file_name in~ ("TiWorker.exe") or
process.name : "tiworker.exe")ECS process.pe.original_file_name is a keyword field: in~ is case-insensitive, Kibana KQL is not.
['tiworker.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 |
|---|---|---|---|---|---|---|
| TiWorker.exe | 9 | x64, x86 | 10.0.18362.2091 → 10.0.28000.3225 | Win10 1909 → Win11 26H1 (6) | Winbindex |
All 9 parsed builds · 13 Windows release groups not verifiable
| SHA256 | Version | Arch | OriginalFilename | Windows releases | Signature | Source | Sysmon |
|---|---|---|---|---|---|---|---|
| 396cb3d48e0a… | 10.0.28000.3225 | x64 | TiWorker.exe | Win11 26H1 | Signed (Overlay) | Winbindex | |
| 31fcb77c73d2… | 10.0.28000.3225 | x86 | TiWorker.exe | Win11 26H1 | Winbindex | ||
| eb8a76b42b86… | 10.0.26100.9703 | x64 | TiWorker.exe | Win11 24H2 | Signed (Overlay) | Winbindex | |
| 304a36d42aff… | 10.0.26100.9703 | x86 | TiWorker.exe | Win11 24H2 | Signed (Overlay) | Winbindex | |
| 547a3c81b4fa… | 10.0.19041.7789 | x64 | TiWorker.exe | Win10 21H2 | Signed (Overlay) | Winbindex | |
| e949ee85b223… | 10.0.22000.3250 | x64 | TiWorker.exe | Win11 21H2 | Signed (Overlay) | Winbindex | |
| cd64281accee… | 10.0.18362.2091 | x64 | TiWorker.exe | Win10 1909 | Unsigned | Winbindex | |
| 9ce595c979d1… | 10.0.18362.2091 | x86 | TiWorker.exe | Win10 1909 | Unsigned | Winbindex | |
| 44d21b03394a… | 10.0.19041.1490 | x64 | TiWorker.exe | Win10 20H2 | Signed (Overlay) | Winbindex |
Winbindex builds link to the Microsoft symbol server copy that was hashed and parsed.