Library / LOLBin
rasautou.exe
Remote Access Dialer · Microsoft Corporation
OriginalFilename
rasdlui.exe
Differs from file name
Gotchas
- OriginalFilename doesn't match the file name: a rule using
OriginalFileName: rasautou.exenever fires.
Query snippets
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\rasautou.exe'
- OriginalFileName: 'rasdlui.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="rasdlui.exe" OR Processes.process_name="rasautou.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~ ("rasdlui.exe")
or FileName =~ "rasautou.exe"Microsoft Defender XDR advanced hunting. in~ and =~ are case-insensitive.
process where event.type == "start" and
(process.pe.original_file_name in~ ("rasdlui.exe") or
process.name : "rasautou.exe")ECS process.pe.original_file_name is a keyword field: in~ is case-insensitive, Kibana KQL is not.
['rasdlui.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 |
|---|---|---|---|---|---|---|
| rasdlui.exe | 17 | x64, x86 | 10.0.10240.21128 → 10.0.28000.3231 | Win10 1507 → Win11 26H1 (13) | Host scan, Winbindex | ✓ 2 |
All 17 parsed builds · 14 Windows release groups not verifiable
| SHA256 | Version | Arch | OriginalFilename | Windows releases | Signature | Source | Sysmon |
|---|---|---|---|---|---|---|---|
| f59b84e18de3… | 10.0.28000.3231 | x64 | rasdlui.exe | Win11 26H1 | Winbindex | ||
| a2fbd6296126… | 10.0.28000.1199 | x86 | rasdlui.exe | Win11 26H1 | Unsigned | Winbindex | |
| c9a280099aed… | 10.0.26100.9711 | x64 | rasdlui.exe | Win11 24H2 | Unsigned | Host scan, Winbindex | ✓ |
| 68165265cc86… | 10.0.26100.6584 | x86 | rasdlui.exe | Win11 24H2, Win11 25H2 | Signed (Catalog file) | Host scan, Winbindex | ✓ |
| fcdbc6893b12… | 10.0.14393.9611 | x64 | rasdlui.exe | Win10 1607 | Unsigned | Winbindex | |
| 1f989a50a917… | 10.0.14393.9611 | x86 | rasdlui.exe | Win10 1607 | Unsigned | Winbindex | |
| 55f933562ab9… | 10.0.26100.6584 | x64 | rasdlui.exe | Win11 24H2, Win11 25H2 | Unsigned | Winbindex | |
| d72a53b64c20… | 10.0.10240.21128 | x86 | rasdlui.exe | Win10 1507 | Unsigned | Winbindex | |
| 318e8894837e… | 10.0.10240.21128 | x64 | rasdlui.exe | Win10 1507 | Unsigned | Winbindex | |
| eec5dbdf411a… | 10.0.19041.546 | x64 | rasdlui.exe | Win10 2004 … Win10 22H2 (5) | Unsigned | Winbindex | |
| 51b2f4f5b5cf… | 10.0.19041.546 | x86 | rasdlui.exe | Win10 2004 … Win10 22H2 (5) | Unsigned | Winbindex | |
| 2163274f8a0b… | 10.0.15063.0 | x64 | rasdlui.exe | Win10 1703 | Unsigned | Winbindex | |
| 10fd5d52d6be… | 10.0.15063.0 | x86 | rasdlui.exe | Win10 1703 | Unsigned | Winbindex | |
| c8d5a7b0be2f… | 10.0.16299.15 | x64 | rasdlui.exe | Win10 1709 | Unsigned | Winbindex | |
| a02d72cf9a3b… | 10.0.16299.15 | x86 | rasdlui.exe | Win10 1709 | Unsigned | Winbindex | |
| 8be69a18fff2… | 10.0.10586.71 | x64 | rasdlui.exe | Win10 1511 | Unsigned | Winbindex | |
| 84ae1eb668e0… | 10.0.10586.71 | x86 | rasdlui.exe | Win10 1511 | Unsigned | Winbindex |
Winbindex builds link to the Microsoft symbol server copy that was hashed and parsed.