Library / LOLBin
unregmp2.exe
Microsoft Windows Media Player Legacy Setup Utility · Microsoft Corporation
OriginalFilename
unregmp2.exe
Query snippets
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\unregmp2.exe'
- OriginalFileName: 'unregmp2.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="unregmp2.exe" OR Processes.process_name="unregmp2.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~ ("unregmp2.exe")
or FileName =~ "unregmp2.exe"Microsoft Defender XDR advanced hunting. in~ and =~ are case-insensitive.
process where event.type == "start" and
(process.pe.original_file_name in~ ("unregmp2.exe") or
process.name : "unregmp2.exe")ECS process.pe.original_file_name is a keyword field: in~ is case-insensitive, Kibana KQL is not.
['unregmp2.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 |
|---|---|---|---|---|---|---|
| unregmp2.exe | 12 | x64, x86 | 12.0.10240.17976 → 12.0.28000.1 | Win10 1507 → Win11 26H1 (7) | Host scan, Winbindex |
All 12 parsed builds · 26 Windows release groups not verifiable
| SHA256 | Version | Arch | OriginalFilename | Windows releases | Signature | Source | Sysmon |
|---|---|---|---|---|---|---|---|
| 75fbfb8b8470… | 12.0.28000.1 | x64 | unregmp2.exe | Win11 26H1 | Unsigned | Winbindex | |
| 2c420ed2014c… | 12.0.28000.1 | x86 | unregmp2.exe | Win11 26H1 | Unsigned | Winbindex | |
| f431f1af28eb… | 12.0.26100.1882 | x64 | unregmp2.exe | Win11 24H2, Win11 25H2 | Signed (Catalog file) | Host scan, Winbindex | |
| 5c45e20e9c49… | 12.0.26100.1882 | x86 | unregmp2.exe | Win11 24H2, Win11 25H2 | Signed (Catalog file) | Host scan, Winbindex | |
| cfc5a8170af2… | 12.0.14393.4169 | x64 | unregmp2.exe | Win10 1607 | Unsigned | Winbindex | |
| bc11d945648b… | 12.0.14393.4169 | x86 | unregmp2.exe | Win10 1607 | Unsigned | Winbindex | |
| a9124e6c84f2… | 12.0.10240.19235 | x86 | unregmp2.exe | Win10 1507 | Unsigned | Winbindex | |
| 44042095feb2… | 12.0.10240.17976 | x64 | unregmp2.exe | Win10 1507 | Unsigned | Winbindex | |
| 6260fda7e345… | 12.0.17134.1967 | x86 | unregmp2.exe | Win10 1803 | Unsigned | Winbindex | |
| 2a38bfc3813d… | 12.0.17134.1 | x64 | unregmp2.exe | Win10 1803 | Unsigned | Winbindex | |
| c558ca0eb13f… | 12.0.10586.0 | x86 | unregmp2.exe | Win10 1511 | Unsigned | Winbindex | |
| a7b2fc4c5997… | 12.0.10586.0 | x64 | unregmp2.exe | Win10 1511 | Unsigned | Winbindex |
Winbindex builds link to the Microsoft symbol server copy that was hashed and parsed.