Is LibProsperoPkg.Gui.runtimeconfig.json safe?
No engine flagged this small, widely circulated JSON configuration file, and available threat-intelligence checks found no known malware association.
All 75 antivirus engines returned without a malicious or suspicious detection, including 16 tier-1 engines reporting no detection. The 516-byte JSON file has circulated broadly for 661 days, and available external intelligence produced no threat matches.
05917b409d59af31bc…cc9f0301a2b66cRecommended next actions
Before opening
Open it only when its sender or download source is one you independently trust.
If you already opened 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 returned without a malicious or suspicious detection, including 16 tier-1 engines reporting no detection. The 516-byte JSON file has circulated broadly for 661 days, and available external intelligence produced no threat matches.
The sample is a 516-byte JSON runtime configuration file rather than an executable. None of 75 antivirus engines flagged it, and 16 tier-1 engines reported no detection. Its 1,142-source prevalence and 1,286 submissions over 661 days indicate broad, established circulation. MalwareBazaar, CIRCL, and YARAify supplied no corroborating threat match. No completed runtime observation or complete contacted-host reputation check is available, but the strong static and prevalence evidence supports a benign assessment.
What We Detected
The file is a 516-byte JSON runtime configuration file. None of 75 antivirus engines reported a malicious or suspicious detection, including no detections from the tier-1 group.
Threat Behavior
No completed sandbox observation is available, so runtime behavior cannot be characterized. No complete contacted-host reputation result is available either. Static intelligence checks found no MalwareBazaar, CIRCL, or YARAify match.
What To Do Now
The evidence is consistent with an ordinary application configuration file. Keep endpoint protection enabled and obtain the file with its associated application from a trusted source if provenance remains uncertain.
Where this verdict could be wrong2 caveats
- behaviour=null, so no completed runtime observation is available.
- contactedHosts=null, so no complete contacted-host reputation cross-check is available.
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 reported a malicious or suspicious detection.
- 16 tier-1 engines reported no detection.
- Observed from 1,142 sources across 1,286 submissions.
- No MalwareBazaar, CIRCL, or YARAify threat match.
- Small non-executable JSON configuration format.
- No completed runtime observation is available.
- No complete contacted-host reputation cross-check is available.
No remediation is indicated by the available evidence. Keep endpoint protection enabled and retain normal source-verification practices.
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
PartialRuntime data is present, but no completed sandbox environment is recorded.
Network
Not runNo contacted-host reputation check is recorded.
No timestamp recordedYARA
CompleteRule evaluation completed with no recorded matches.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime behavior was not available
The report does not treat a missing runtime observation as a clean result.
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
- 1,142sources 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
The hash has a long, established submission history across 1,142 sources.
Verdict inputView chapterProvenanceDerivedSourceSubmission historyObserved at - 03
No completed runtime observation is available for this file.
ProvenanceDerivedSourceRuntime coverageObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
YARA rules
No matchesThe rule pass completed without a saved public match.
0 of 75 engines flagged this file
View all 75 engine results
PE structure
Not applicablePE structure analysis applies to Windows executable formats, not this file type.
How widely this file has been seen
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Fingerprint and provenance
- File name
- LibProsperoPkg.Gui.runtimeconfig.json
- Format
- JSON
- Code signing
- Not applicable to this file type
- Size
- 516 B
- Last analyzed
- Sep 14, 2026, 2:42 PM UTC
05917b409d59af31bc8d3021bc06302a0c21c7d05b449603d6cc9f0301a2b66cSafety & 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
Open it only when its sender or download source is one 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 LibProsperoPkg.Gui.runtimeconfig.json safe?
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Community
Member reviews and reports for this exact file hash.