Is ZIP_Sentinel_source.zip safe?
No engine detected a threat in this small ZIP archive, although its very recent appearance and absent runtime analysis warrant ordinary source verification.
All 75 antivirus engines produced zero malicious or suspicious detections, including no tier-1 flags, and external intelligence supplied no corroborating threat indicators. Because the archive is newly observed and lacks runtime analysis, verify its source and inspect the extracted files before opening them.
50a9a931cd268cea53…6a969d0304898bRecommended next actions
Before opening or extracting
Open or extract it only when its sender or download source has been independently verified.
If you already opened or extracted 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 produced zero malicious or suspicious detections, including no tier-1 flags, and external intelligence supplied no corroborating threat indicators. Because the archive is newly observed and lacks runtime analysis, verify its source and inspect the extracted files before opening them.
The strongest evidence is the absence of malicious or suspicious detections across 75 engines, with 12 tier-1 engines reporting no detection. No family consensus, hacktool label, malicious child, or external-intelligence match is present. Signing is not applicable to a ZIP archive, so the lack of a signature carries no negative weight. Confidence is moderated because the file is newly observed, has only one recorded submission, and has no completed runtime analysis. The similar-file history is mildly reassuring but weak because all five matches are based only on the ZIP file type.
What We Detected
None of 75 antivirus engines flagged the archive as malicious or suspicious. The results include zero tier-1 detections, and Microsoft, ESET-NOD32, Avira, and Emsisoft reported no detection. MalwareBazaar, CIRCL, and YARAify supplied no matching threat intelligence or rules.
Threat Behavior
No completed sandbox observation is available, so the archive's contents were not observed running. No complete contacted-host reputation result is available either. The filename heuristic merely notes that the name resembles security software; by itself, that does not indicate harmful behavior.
What To Do Now
Confirm that the archive came from the expected source, scan extracted files individually, and review scripts or source files before running or compiling them. Keep endpoint protection enabled, particularly because this hash is newly observed and has little reputation history.
Where this verdict could be wrong4 caveats
- file.ageDays=0 and prevalence.classification=rare_new limit confidence because the archive has only one known submission.
- behaviour=null means the archive and any contents were not observed executing.
- Several engines timed out, including Avast, BitDefender, Fortinet, and Kaspersky.
- The five similarHashes entries are file-type-only matches and do not establish common contents or provenance.
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 malicious or suspicious findings
- engines.tier1Malicious=0
- 12 tier-1 engines reported no detection
- No MalwareBazaar, CIRCL, or YARAify hit
- No confirmed hacktool label or family consensus
- First observed recently with only one recorded submission
- No completed runtime or sandbox observation
- No complete contacted-host reputation cross-check
- Several antivirus engines timed out
- Similar-file evidence is limited to generic ZIP file-type matches
Verify the download source and scan each extracted item before opening, compiling, or running it. Keep endpoint protection enabled while handling the archive.
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
- 1sources 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
No completed runtime observation is available for this file.
ProvenanceDerivedSourceRuntime coverageObserved at - 03
The hash has been submitted 1 time from 1 source.
ProvenanceDerivedSourceSaved report factsObserved 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
Barely seen in the wild and first surfaced recently. That limits reputation evidence, but rarity alone is not proof of malware.
Fingerprint and provenance
- File name
- ZIP_Sentinel_source.zip
- Format
- ZIP
- Code signing
- Not applicable to this file type
- Size
- 2.8 KB
- Last analyzed
- Sep 25, 2026, 7:32 AM UTC
50a9a931cd268cea5360a4bdf18692ec605efe40d09c45c3176a969d0304898bSafety & 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 or extract it only when its sender or download source has been independently verified.
- 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 ZIP_Sentinel_source.zip safe?
What is ZIP_Sentinel_source.zip?
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What is the SHA-256 hash of ZIP_Sentinel_source.zip?
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Community
Member reviews and reports for this exact file hash.