Library / Windows
lsaiso.exe
Credential Guard & VBS Key Protection · Microsoft Corporation
WindowsSysmon-confirmedSigma refs: 1
OriginalFilename
LsaIso.exe
Query snippets
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\lsaiso.exe'
- OriginalFileName: 'LsaIso.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="LsaIso.exe" OR Processes.process_name="lsaiso.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~ ("LsaIso.exe")
or FileName =~ "lsaiso.exe"Microsoft Defender XDR advanced hunting. in~ and =~ are case-insensitive.
process where event.type == "start" and
(process.pe.original_file_name in~ ("LsaIso.exe") or
process.name : "lsaiso.exe")ECS process.pe.original_file_name is a keyword field: in~ is case-insensitive, Kibana KQL is not.
['lsaiso.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 |
|---|---|---|---|---|---|---|
| LsaIso.exe | 14 | x64 | 10.0.10240.20883 → 10.0.28000.3231 | Win10 1507 → Win11 26H1 (15) | Host scan, Winbindex | ✓ 1 |
All 14 parsed builds · 5 Windows release groups not verifiable
| SHA256 | Version | Arch | OriginalFilename | Windows releases | Signature | Source | Sysmon |
|---|---|---|---|---|---|---|---|
| 0c694994bfe1… | 10.0.28000.3231 | x64 | LsaIso.exe | Win11 26H1 | Signed (Overlay) | Winbindex | |
| 5a01f8a7dfd4… | 10.0.26100.9711 | x64 | LsaIso.exe | Win11 24H2 | Signed (Overlay) | Host scan, Winbindex | ✓ |
| 73363b8c1edd… | 10.0.19041.7802 | x64 | LsaIso.exe | Win10 21H2 | Signed (Overlay) | Winbindex | |
| 922600e6f5ee… | 10.0.17763.9376 | x64 | LsaIso.exe | Win10 1809 | Signed (Overlay) | Winbindex | |
| 7278271b063d… | 10.0.14393.9611 | x64 | LsaIso.exe | Win10 1607 | Signed (Overlay) | Winbindex | |
| 0df1ddf120e5… | 10.0.10240.20883 | x64 | LsaIso.exe | Win10 1507 | Signed (Overlay) | Winbindex | |
| 93f35cb172ff… | 10.0.26100.6584 | x64 | LsaIso.exe | Win11 24H2, Win11 25H2 | Signed (Overlay) | Winbindex | |
| 5c8006cad383… | 10.0.19041.2486 | x64 | LsaIso.exe | Win10 20H2 | Signed (Overlay) | Winbindex | |
| 0e8287988be7… | 10.0.17134.1456 | x64 | LsaIso.exe | Win10 1803 | Signed (Overlay) | Winbindex | |
| 9610808d82a1… | 10.0.19041.488 | x64 | LsaIso.exe | Win10 2004, Win10 20H2 | Signed (Overlay) | Winbindex | |
| 2e5fb6b74e67… | 10.0.18362.815 | x64 | LsaIso.exe | Win10 1903, Win10 1909 | Signed (Overlay) | Winbindex | |
| 83df395cf7f3… | 10.0.16299.1868 | x64 | LsaIso.exe | Win10 1709 | Winbindex | ||
| ad2e612d5f4f… | 10.0.15063.2313 | x64 | LsaIso.exe | Win10 1703 | Winbindex | ||
| 6f46ad2545a5… | 10.0.10586.873 | x64 | LsaIso.exe | Win10 1511 | Signed (Overlay) | Winbindex |
Winbindex builds link to the Microsoft symbol server copy that was hashed and parsed.