Library / Windows
baaupdate.exe
BitLocker Access Agent Update Utility · Microsoft Corporation
WindowsParsedSigma refs: 2
OriginalFilename
BAAUPDATE.EXE
Query snippets
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\baaupdate.exe'
- OriginalFileName: 'BAAUPDATE.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="BAAUPDATE.EXE" OR Processes.process_name="baaupdate.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~ ("BAAUPDATE.EXE")
or FileName =~ "baaupdate.exe"Microsoft Defender XDR advanced hunting. in~ and =~ are case-insensitive.
process where event.type == "start" and
(process.pe.original_file_name in~ ("BAAUPDATE.EXE") or
process.name : "baaupdate.exe")ECS process.pe.original_file_name is a keyword field: in~ is case-insensitive, Kibana KQL is not.
['baaupdate.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 |
|---|---|---|---|---|---|---|
| BAAUPDATE.EXE | 3 | x64 | 10.0.10240.16384 → 10.0.14393.206 | Win10 1507 → Win10 1607 (3) | Winbindex |
All 3 parsed builds · 14 Windows release groups not verifiable
| SHA256 | Version | Arch | OriginalFilename | Windows releases | Signature | Source | Sysmon |
|---|---|---|---|---|---|---|---|
| 0e0f8e2f774c… | 10.0.14393.206 | x64 | BAAUPDATE.EXE | Win10 1607 | Unsigned | Winbindex | |
| f246602378b9… | 10.0.10586.0 | x64 | BAAUPDATE.EXE | Win10 1511 | Unsigned | Winbindex | |
| 8ba1af78b2e8… | 10.0.10240.16384 | x64 | BAAUPDATE.EXE | Win10 1507 | Unsigned | Winbindex |
Winbindex builds link to the Microsoft symbol server copy that was hashed and parsed.