Is tb21-join-2026-10-05-1625.zip safe?
No engine among 75 detected a threat, including all 17 tier-1 engines, though the newly observed ZIP lacks runtime and extracted-signature evidence.
The archive produced no detections across 75 antivirus engines, with all 17 tier-1 engines also silent. This strongly favors benign content, but the file is newly observed, contains a Windows executable, and has no completed sandbox or contacted-host assessment.
df3b8b87f594f94ee1…056df207e44b04Recommended 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.
The archive produced no detections across 75 antivirus engines, with all 17 tier-1 engines also silent. This strongly favors benign content, but the file is newly observed, contains a Windows executable, and has no completed sandbox or contacted-host assessment.
The strongest evidence is the complete absence of malicious or suspicious detections across 75 engines. All 17 tier-1 engines reported no detection, and no engine supplied a malware-family label. MalwareBazaar, YARAify, and CIRCL returned no matching intelligence, although lack of a match does not prove benignity. The archive is newly observed and contains a PE file, while no runtime analysis or complete host-reputation result is available. Similar-file history leans benign, but those records match only the broad ZIP file type and therefore carry limited weight.
What We Detected
No malicious or suspicious result appeared among 75 antivirus engines. All 17 tier-1 engines, including BitDefender, Kaspersky, ESET-NOD32, Avast, and Fortinet, reported no detection. MalwareBazaar, YARAify, and CIRCL also supplied no corroborating match.
Threat Behavior
No completed sandbox run is available, so execution behavior was not observed. The archive is tagged as containing a Windows executable, but the outer ZIP does not support meaningful code-signature validation, and no extracted-file signature evidence is provided. A complete contacted-host reputation result is also unavailable.
What To Do Now
The detection profile supports normal use when the archive came from an expected source. Because it is newly observed and contains executable content, keep endpoint protection enabled, extract it cautiously, and verify the enclosed executable's publisher before running it.
Where this verdict could be wrong3 caveats
- The archive is zero days old and has only one submission, limiting confidence in its reputation.
- file.tags includes 'contains-pe', but signing.applicable=false for the outer ZIP and no extracted executable signature details are available.
- behaviour=null and contactedHosts=null, so execution behavior and contacted-host reputation were not assessed.
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 content
- All 17 tier-1 engines reported no detection
- No MalwareBazaar or YARAify match
- No brand mismatch or adversarial filename marker
- Four of five file-type-only historical comparisons received benign assessments
- Newly observed file with only one recorded submission
- ZIP archive contains executable content
- No completed runtime analysis
- No complete contacted-host reputation result
- No extracted executable signature details
Use the archive only if its source and purpose are expected. Keep endpoint protection enabled and verify the extracted executable's signature before launching it.
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
- tb21-join-2026-10-05-1625.zip
- Format
- ZIP
- Code signing
- Not applicable to this file type
- Size
- 248.6 KB
- Last analyzed
- Oct 6, 2026, 1:27 AM UTC
df3b8b87f594f94ee128ff417bb8051188f2b3ce6d5500997f056df207e44b04Safety & 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 tb21-join-2026-10-05-1625.zip safe?
What is tb21-join-2026-10-05-1625.zip?
How many antivirus engines detected tb21-join-2026-10-05-1625.zip?
What is the SHA-256 hash of tb21-join-2026-10-05-1625.zip?
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Community
Member reviews and reports for this exact file hash.