Library / Windows
taskhostw.exe
Host Process for Windows Tasks · Microsoft Corporation
WindowsSysmon-confirmedSigma refs: 3
OriginalFilename
taskhostw.exe
Query snippets
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\taskhostw.exe'
- OriginalFileName: 'taskhostw.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="taskhostw.exe" OR Processes.process_name="taskhostw.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~ ("taskhostw.exe")
or FileName =~ "taskhostw.exe"Microsoft Defender XDR advanced hunting. in~ and =~ are case-insensitive.
process where event.type == "start" and
(process.pe.original_file_name in~ ("taskhostw.exe") or
process.name : "taskhostw.exe")ECS process.pe.original_file_name is a keyword field: in~ is case-insensitive, Kibana KQL is not.
['taskhostw.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 |
|---|---|---|---|---|---|---|
| taskhostw.exe | 10 | x64 | 10.0.10240.16384 → 10.0.28000.2179 | Win10 1507 → Win11 26H1 (11) | Host scan, Winbindex | ✓ 1 |
All 10 parsed builds · 9 Windows release groups not verifiable
| SHA256 | Version | Arch | OriginalFilename | Windows releases | Signature | Source | Sysmon |
|---|---|---|---|---|---|---|---|
| 5b3cb177742e… | 10.0.28000.2179 | x64 | taskhostw.exe | Win11 26H1 | Signed (Overlay) | Winbindex | |
| ea8d441df237… | 10.0.26100.8328 | x64 | taskhostw.exe | Win11 24H2 | Signed (Overlay) | Host scan, Winbindex | ✓ |
| de85f29a8bc7… | 10.0.17763.1852 | x64 | taskhostw.exe | Win10 1809 | Signed (Overlay) | Winbindex | |
| 1876990eebc9… | 10.0.14393.3297 | x64 | taskhostw.exe | Win10 1607 | Signed (Overlay) | Winbindex | |
| 818c6876e102… | 10.0.26100.5074 | x64 | taskhostw.exe | Win11 24H2, Win11 25H2 | Signed (Overlay) | Winbindex | |
| a5c65c3e00bf… | 10.0.19041.3570 | x64 | taskhostw.exe | Win10 21H2 | Signed (Overlay) | Winbindex | |
| a663253b39c3… | 10.0.17134.1098 | x64 | taskhostw.exe | Win10 1803 | Signed (Overlay) | Winbindex | |
| 0bec3128b241… | 10.0.18362.387 | x64 | taskhostw.exe | Win10 1903, Win10 1909 | Signed (Overlay) | Winbindex | |
| 236cac2f3764… | 10.0.10586.0 | x64 | taskhostw.exe | Win10 1511 | Signed (Overlay) | Winbindex | |
| 9aab619f27da… | 10.0.10240.16384 | x64 | taskhostw.exe | Win10 1507 | Signed (Overlay) | Winbindex |
Winbindex builds link to the Microsoft symbol server copy that was hashed and parsed.