Is windowsdesktop-runtime-8.0.31-win-arm64.exe safe?
No antivirus engine detected a threat, the verified .NET signature matches clean historical samples, and observed execution showed ordinary installer extraction activity.
All 75 antivirus engines were free of detections, including the available tier-1 results. The verified .NET signature, three closely related prior samples, one completed sandbox run, and static PE characteristics consistently support an authentic Windows Desktop Runtime installer.
b833fcf80270577d5c…627188cc341025Recommended next actions
Before running
Run it only when it came from the developer's official site or another source you independently trust.
If you already ran it
Keep normal device protection enabled and stop if the file behaves unexpectedly.
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
The reasoning behind this verdict
This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.
All 75 antivirus engines were free of detections, including the available tier-1 results. The verified .NET signature, three closely related prior samples, one completed sandbox run, and static PE characteristics consistently support an authentic Windows Desktop Runtime installer.
The antivirus results contain no malicious or suspicious detections among 75 engines. The executable carries a verified .NET signature, and the limited signer history contains three safe samples with no malicious examples. Three closely related files—two signer matches and one signer-confirmed imphash match—previously received clean assessments. One completed sandbox run showed no malware-only techniques or malicious sandbox conclusion, while its temporary extraction activity fits a WiX installer. No inspected child was identified as malicious, and static analysis found neither packing nor high-entropy code.
What We Detected
No malicious or suspicious detections appeared among 75 antivirus engines. The executable is signed with a verified .NET certificate, and the available signer history contains three safe samples and no malicious samples. Three related files also received clean assessments, including two signer matches and one imphash match where the signer matched as well.
Threat Behavior
One completed sandbox run recorded no malware-only techniques and no malicious sandbox conclusion. The file extracted WiX installer resources into temporary directories, which is consistent with runtime installation activity. Ten dropped files were inspected without a malicious child being identified, although their individual verdicts remained unknown. Reputation checks covered the three contacted domains without finding malicious or suspicious entries, but complete coverage of the separately recorded IP contact was not established.
What To Do Now
Use a copy obtained from Microsoft's official .NET download channel and confirm that the digital signature remains valid before installation. Keep endpoint protection enabled during download and execution.
Where this verdict could be wrong3 caveats
- The signer history is limited to signing.signerStats.totalSamples=3 and signing.signerStats.autoTrusted=false, so it is supportive but not independently conclusive.
- droppedChildren inspected 10 files without identifying a malicious child, but all ten individual child verdicts are unknown.
- contactedHosts.inspected=3 covers the three contacted domains, but behaviour.contactedIps also lists 162.159.36.2, so complete reputation coverage of every observed contact is not established.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 0/75 engines produced malicious or suspicious detections.
- Verified digital signature from '.NET'.
- Three related samples have prior safe assessments with matching signer evidence.
- One sandbox run produced no malicious conclusion and no offensive techniques.
- No packing or high-entropy code was found.
- Signer history is limited to 3 samples and has not reached the auto-trust threshold.
- All 10 extracted child files have unknown individual verdicts despite no malicious-child finding.
- Reputation coverage did not explicitly include the separately recorded IP address 162.159.36.2.
Prefer the installer from Microsoft's official .NET download channel and verify its digital signature before running it. Keep antivirus and endpoint protection enabled.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 75 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial3 of 4 contacted hosts were cross-checked; coverage is incomplete.
YARA
CompleteRule evaluation completed with no recorded matches.
External intel
PartialIndependent reference checks were attempted but are incomplete.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime flight recorder
Capture complete- 1isolated sandbox run
- 8MITRE ATT&CK techniques
- 3spawned processes
- 4network contacts
- 15filesystem & mutex artifacts
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
- a1672.dscr.akamai.net
- assets.msn.com
- nexusrules.officeapps.live.com
- 162.159.36.2
- C:\Users\<USER>\AppData\Local\Temp\{7B253FA4-0666-414F-998D-FF473F3A1BDB}\.cr\windowsdesktop-runtime-8.0.31-win-arm64.exe
- C:\Users\<USER>\AppData\Local\Temp\{6F0FCE24-0410-42A4-9240-5850CECA3743}\.ba\wixstdba.dll
- C:\Users\<USER>\AppData\Local\Temp\{6F0FCE24-0410-42A4-9240-5850CECA3743}\.ba\thm.xml
- C:\Users\<USER>\AppData\Local\Temp\{6F0FCE24-0410-42A4-9240-5850CECA3743}\.ba\thm.wxl
- C:\Users\<USER>\AppData\Local\Temp\{6F0FCE24-0410-42A4-9240-5850CECA3743}\.ba\bg.png
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- 72f2e7b06c562f1dd6cb…54824aNever scannednever seen before
- 9095bf7b6baa0107b40a…141e79Never scannednever seen before
- 4d6a2d306abe77e7dbdb…f64384Never scannednever seen before
- c16a48304100c374ed04…f6863cNever scannednever seen before
- 285e32e649eb71a68f29…0e7633Never scannednever seen before
- 344acd0d3665ba489eb3…8d5557Never scannednever seen before
- 6af5c2bc88b1e5ce188a…f44f22Never scannednever seen before
- dcea15f3710822ffc262…a45640Never scannednever seen before
- 83ca096f7ba2c83fc3b3…c78e63Never scannednever seen before
- 1b1b0700aa6677afe358…78e1cfNever scannednever seen before
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 0rule hits recorded
- 0 / 75engines flagged
- 3sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
0 of 75 antivirus engines flagged the file.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
One or more independent reference checks were incomplete or unavailable.
ProvenanceDerivedSourceExternal-intelligence coverageObserved at - 03
The file has a valid code signature from .NET.
ProvenanceObservedSourceCode-signing metadataObserved at - 04
Scanned file: windowsdesktop-runtime-8.0.31-win-arm64.exe — b833fcf80270577d5c7f199265003a178271384b1bd45de0b6627188cc341025
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Users\<USER>\Desktop\windowsdesktop-runtime-8.0.31-win-arm64.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — "C:\Users\<USER>\AppData\Local\Temp\{7B253FA4-0666-414F-998D-FF473F3A1BDB}\.cr\windowsdesktop-runtime-8.0.31-win-arm64.exe" -burn.clean.room="C:\Users\<USER>\Desktop\windowsdesktop-runtime-8.0.31-win-arm64.exe" -burn.filehandle.attached=604 -burn.filehandle.self=684
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: windowsdesktop-runtime-8.0.31-win-arm64.exe — C:\Users\<USER>\AppData\Local\Temp\{7B253FA4-0666-414F-998D-FF473F3A1BDB}\.cr\windowsdesktop-runtime-8.0.31-win-arm64.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: wixstdba.dll — C:\Users\<USER>\AppData\Local\Temp\{6F0FCE24-0410-42A4-9240-5850CECA3743}\.ba\wixstdba.dll
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: a1672.dscr.akamai.net — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: assets.msn.com — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
Available reference checks returned no match, but at least one source was unavailable. This is not a clean result.
YARA rules
No matchesThe rule pass completed without a saved public match.
0 of 75 engines flagged this file
View all 75 engine results
Section entropy & packers
No high-entropy executable section or known packer signature was detected. Data and resource sections can still have high entropy without indicating packed code.
How widely this file has been seen
Moderate prevalence — neither rare nor common. No strong prior applies.
Fingerprint and provenance
- File name
- windowsdesktop-runtime-8.0.31-win-arm64.exe
- Format
- Win32 EXE
- Code signing
- Signature valid: .NET
- Size
- 51.7 MB
- Last analyzed
- Oct 1, 2026, 5:48 AM UTC
b833fcf80270577d5c7f199265003a178271384b1bd45de0b6627188cc341025Safety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file appears low risk based on the evidence available now.
- Recovery step 01
Run it only when it came from the developer's official site or another source you independently trust.
- Recovery step 02
A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.
- Recovery step 03
Keep your antivirus and Windows updates switched on so you stay protected.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is windowsdesktop-runtime-8.0.31-win-arm64.exe safe?
What is windowsdesktop-runtime-8.0.31-win-arm64.exe?
How many antivirus engines detected windowsdesktop-runtime-8.0.31-win-arm64.exe?
Is windowsdesktop-runtime-8.0.31-win-arm64.exe digitally signed?
What is the SHA-256 hash of windowsdesktop-runtime-8.0.31-win-arm64.exe?
Is it safe to run windowsdesktop-runtime-8.0.31-win-arm64.exe?
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Community
Member reviews and reports for this exact file hash.