Library / LOLBin
wlrmdr.exe
Windows logon reminder · Microsoft Corporation
OriginalFilename
WLRMNDR.EXE
Differs from file name
Gotchas
- OriginalFilename doesn't match the file name: a rule using
OriginalFileName: wlrmdr.exenever fires.
Query snippets
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\wlrmdr.exe'
- OriginalFileName: 'WLRMNDR.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="WLRMNDR.EXE" OR Processes.process_name="wlrmdr.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~ ("WLRMNDR.EXE")
or FileName =~ "wlrmdr.exe"Microsoft Defender XDR advanced hunting. in~ and =~ are case-insensitive.
process where event.type == "start" and
(process.pe.original_file_name in~ ("WLRMNDR.EXE") or
process.name : "wlrmdr.exe")ECS process.pe.original_file_name is a keyword field: in~ is case-insensitive, Kibana KQL is not.
['wlrmndr.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 |
|---|---|---|---|---|---|---|
| WLRMNDR.EXE | 11 | x64 | 10.0.10240.18818 → 10.0.28000.3086 | Win10 1507 → Win11 26H1 (15) | Host scan, Winbindex | ✓ 1 |
All 11 parsed builds · 5 Windows release groups not verifiable
| SHA256 | Version | Arch | OriginalFilename | Windows releases | Signature | Source | Sysmon |
|---|---|---|---|---|---|---|---|
| 4d74b95c8ba5… | 10.0.28000.3086 | x64 | WLRMNDR.EXE | Win11 26H1 | Signed (Overlay) | Winbindex | |
| 9246ba916c40… | 10.0.26100.9444 | x64 | WLRMNDR.EXE | Win11 24H2 | Signed (Overlay) | Host scan, Winbindex | ✓ |
| f2f88477f4e1… | 10.0.17763.1697 | x64 | WLRMNDR.EXE | Win10 1809 | Signed (Overlay) | Winbindex | |
| e6f559a6a36c… | 10.0.14393.4169 | x64 | WLRMNDR.EXE | Win10 1607 | Signed (Overlay) | Winbindex | |
| 97932708ddf9… | 10.0.26100.5074 | x64 | WLRMNDR.EXE | Win11 24H2, Win11 25H2 | Signed (Overlay) | Winbindex | |
| 2ffead541e08… | 10.0.10240.18818 | x64 | WLRMNDR.EXE | Win10 1507 | Signed (Overlay) | Winbindex | |
| 2fda95aafb2e… | 10.0.19041.746 | x64 | WLRMNDR.EXE | Win10 2004 … Win10 22H2 (5) | Signed (Overlay) | Winbindex | |
| 354b7b5f6d13… | 10.0.22000.120 | x64 | WLRMNDR.EXE | Win11 21H2 | Signed (Overlay) | Winbindex | |
| aab35a51217d… | 10.0.17134.1967 | x64 | WLRMNDR.EXE | Win10 1803 | Signed (Overlay) | Winbindex | |
| afd7a491842a… | 10.0.18362.693 | x64 | WLRMNDR.EXE | Win10 1903 | Signed (Overlay) | Winbindex | |
| 9416a55ef689… | 10.0.10586.0 | x64 | WLRMNDR.EXE | Win10 1511 | Signed (Overlay) | Winbindex |
Winbindex builds link to the Microsoft symbol server copy that was hashed and parsed.