Library / LOLBin
microsoft.workflow.compiler.exe
Microsoft.Workflow.Compiler.exe · Microsoft Corporation
OriginalFilename
Microsoft.Workflow.Compiler.exe
Query snippets
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\microsoft.workflow.compiler.exe'
- OriginalFileName: 'Microsoft.Workflow.Compiler.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="Microsoft.Workflow.Compiler.exe" OR Processes.process_name="microsoft.workflow.compiler.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~ ("Microsoft.Workflow.Compiler.exe")
or FileName =~ "microsoft.workflow.compiler.exe"Microsoft Defender XDR advanced hunting. in~ and =~ are case-insensitive.
process where event.type == "start" and
(process.pe.original_file_name in~ ("Microsoft.Workflow.Compiler.exe") or
process.name : "microsoft.workflow.compiler.exe")ECS process.pe.original_file_name is a keyword field: in~ is case-insensitive, Kibana KQL is not.
['microsoft.workflow.compiler.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 |
|---|---|---|---|---|---|---|
| Microsoft.Workflow.Compiler.exe | 13 | x86 | 4.6.79.0 → 4.8.10001.0 | Win10 1507 → Win11 25H2 (19) | Host scan, Winbindex | ✓ 1 |
All 13 parsed builds
| SHA256 | Version | Arch | OriginalFilename | Windows releases | Signature | Source | Sysmon |
|---|---|---|---|---|---|---|---|
| e24bde224828… | 4.8.9221.0 | x86 | Microsoft.Workflow.Compiler.exe | Win11 25H2 | Signed (Overlay) | Winbindex | |
| c109c2535b25… | 4.8.9032.0 | x86 | Microsoft.Workflow.Compiler.exe | Win11 22H2 … Win11 24H2 (3) | Signed (Overlay) | Winbindex | |
| 698be205bc33… | 4.8.4084.0 | x86 | Microsoft.Workflow.Compiler.exe | Win10 2004 … Win10 22H2 (5) | Signed (Overlay) | Winbindex | |
| 585f531a76b8… | 4.8.4161.0 | x86 | Microsoft.Workflow.Compiler.exe | Win11 21H2 | Signed (Overlay) | Winbindex | |
| bc60cee98a6a… | 4.8.3752.0 | x86 | Microsoft.Workflow.Compiler.exe | Win10 1903, Win10 1909 | Signed (Overlay) | Winbindex | |
| a5d8daa7731f… | 4.7.3190.0 | x86 | Microsoft.Workflow.Compiler.exe | Win10 1809 | Signed (Overlay) | Winbindex | |
| 4ccf5793503d… | 4.7.3056.0 | x86 | Microsoft.Workflow.Compiler.exe | Win10 1803 | Signed (Overlay) | Winbindex | |
| 45e7550909ea… | 4.7.2556.0 | x86 | Microsoft.Workflow.Compiler.exe | Win10 1709 | Signed (Overlay) | Winbindex | |
| 6f4b3ee0fd6e… | 4.7.2046.0 | x86 | Microsoft.Workflow.Compiler.exe | Win10 1703 | Signed (Overlay) | Winbindex | |
| d961ecdec1ca… | 4.6.1586.0 | x86 | Microsoft.Workflow.Compiler.exe | Win10 1607 | Signed (Overlay) | Winbindex | |
| 64780aabfc29… | 4.6.1038.0 | x86 | Microsoft.Workflow.Compiler.exe | Win10 1511 | Signed (Overlay) | Winbindex | |
| 9720233a3b1c… | 4.6.79.0 | x86 | Microsoft.Workflow.Compiler.exe | Win10 1507 | Signed (Overlay) | Winbindex | |
| cfbddc209d37… | 4.8.10001.0 | x86 | Microsoft.Workflow.Compiler.exe | Host scan | ✓ |
Winbindex builds link to the Microsoft symbol server copy that was hashed and parsed.