Is meteor-client-26.1.2-42.jar safe?
No antivirus engine detected this moderately prevalent JAR, although one runtime trace mapped several offensive techniques that warrant obtaining it from a trusted source.
None of 75 antivirus engines flagged the file, including the reporting tier-1 engines, and the completed sandbox run did not issue a malicious conclusion. The observed T1055, T1543.002, and T1562.001 mappings are cautionary, but they lack corroboration from engines, external intelligence, contacted-host reputation, or analyzed child files.
abd124d2d6b65b9cdc…fc97cfd3e1581fRecommended next actions
Before opening or running
Open or run it only when its publisher and download source have been independently verified.
If you already opened or 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.
None of 75 antivirus engines flagged the file, including the reporting tier-1 engines, and the completed sandbox run did not issue a malicious conclusion. The observed T1055, T1543.002, and T1562.001 mappings are cautionary, but they lack corroboration from engines, external intelligence, contacted-host reputation, or analyzed child files.
The strongest evidence is the complete absence of detections across 75 antivirus engines, with 14 tier-1 engines reporting no detection. The file also has moderate prevalence, having been submitted 638 times by 579 sources. One sandbox run mapped activity to T1055, T1543.002, and T1562.001, which prevents treating the runtime trace as entirely routine. However, that sandbox did not produce a malicious conclusion, and the one observed network host had no known malicious or suspicious reputation. No malicious child was identified, though all nine child verdicts remain unresolved. The offensive mappings therefore remain uncorroborated signals rather than sufficient evidence of malware.
What We Detected
No detections were reported by 75 antivirus engines, and tier1Malicious=0. The sample has moderate prevalence, with 579 submitters and 638 submissions, while CIRCL, MalwareBazaar, and YARAify supplied no matching threat intelligence.
Threat Behavior
One completed sandbox run mapped activity to T1055 (Process Injection), T1543.002, and T1562.001. These mappings can indicate offensive behavior, but the sandbox did not issue a malicious conclusion, no persistence indicators were recorded, and the single observed domain, assets.msn.com, was fully checked without a malicious or suspicious reputation match. Nine child hashes were inspected without a malicious result, although their individual classifications remain unknown.
What To Do Now
Use the JAR only if it came from the project's official release channel and its SHA-256 matches the publisher's release information. Keep endpoint protection enabled, and avoid running the file if its origin or intended behavior cannot be verified.
Where this verdict could be wrong3 caveats
- The saved runtime mapping includes T1055 process injection, T1543.002 system-service activity, and T1562.001 impairment of defenses; these are meaningful risk indicators despite the absence of engine detections.
- All 9 dropped-child verdicts are unknown, so droppedChildren.hasMaliciousChild=false does not establish that each child is benign.
- The runtime conclusion rests on behaviour.sandboxCount=1, limiting confidence in how consistently the file behaves.
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 antivirus engines reported a detection.
- tier1Malicious=0, with 14 tier-1 engines reporting no detection.
- The completed sandbox run did not issue a malicious conclusion.
- The single observed host was fully checked with no malicious or suspicious reputation match.
- No external-intelligence match or malicious dropped child was found.
- Runtime evidence mapped possible process injection to T1055.
- Runtime mappings also include T1543.002 and T1562.001.
- Only one sandbox execution is available.
- Nine dropped-child hashes have unresolved individual verdicts.
Obtain the JAR only from its official project channel and verify SHA-256 abd124d2d6b65b9cdc54fbf230d31817693386df0678f2953cfc97cfd3e1581f before use. Keep endpoint protection enabled during execution.
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
Complete1 contacted host was cross-checked.
YARA
Complete1 signature or behavior rule matched.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime flight recorder
Capture complete- 1isolated sandbox run
- 18MITRE ATT&CK techniques
- 15spawned processes
- 1network contacts
- 16filesystem & 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.
- assets.msn.com
- C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\3636
- C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
- C:\ProgramData\Oracle\Java\.oracle_jre_usage\17dfc292991c8786.timestamp
- C:\Users\user\AppData\Local\Temp\hsperfdata_user
- C:\Users\user\AppData\Local\Temp\hsperfdata_user\6336
- C:\Users\user\AppData\Local\Temp\hsperfdata_user\5468
Files this sample writes at runtime
This file drops 9 children at runtime. None are currently flagged malicious in our cache.
- 6a780defd8844156ee67…ccd841Never scannednever seen before
- a90374894b4339cc735b…49336aNever scannednever seen before
- d87c5f3cdfb5b7c0510e…1ade9eNever scannednever seen before
- f1b8a9d17fe9004a8cb3…0f33bcNever scannednever seen before
- 2444cd01d537c7def5c1…01115cNever scannednever seen before
- 61625fd8b084f70f242d…55abd2Never scannednever seen before
- 50c82f36208ed8040447…2d7843Never scannednever seen before
- 8e8711854186c68e2368…4a3c7cNever scannednever seen before
- 759aafcfa2395ce1b800…2af0f7Never 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.
- 1rule hit recorded
- 0 / 75engines flagged
- 579sources 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
1 high-confidence signature or behavior rule matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 03
The hash has been submitted 638 times from 579 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 04
Scanned file: meteor-client-26.1.2-42.jar — abd124d2d6b65b9cdc54fbf230d31817693386df0678f2953cfc97cfd3e1581f
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\<USER>\Desktop\sample.jar"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: 3636 — C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\3636
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: 3903daac9bc4a3b7.timestamp — C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
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.
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
Signatures and behavior heuristics
A community signature or high-severity behavioral heuristic matched. Signatures identify known patterns; heuristics are strong leads but are not proof on their own.
The saved runtime evidence maps this activity to MITRE T1055 (Process Injection). The mapping supports possible process injection, but it does not prove the exact injection method or the operator's intent.
Evidence"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\<USER>\Desktop\sample.jar"
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
Moderate prevalence — neither rare nor common. No strong prior applies.
Fingerprint and provenance
- File name
- meteor-client-26.1.2-42.jar
- Format
- JAR
- Code signing
- Not applicable to this file type
- Size
- 5.1 MB
- Last analyzed
- Oct 1, 2026, 4:10 PM UTC
abd124d2d6b65b9cdc54fbf230d31817693386df0678f2953cfc97cfd3e1581fSafety & 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 run it only when its publisher and download source have 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 meteor-client-26.1.2-42.jar safe?
What is meteor-client-26.1.2-42.jar?
How many antivirus engines detected meteor-client-26.1.2-42.jar?
What is the SHA-256 hash of meteor-client-26.1.2-42.jar?
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Community
Member reviews and reports for this exact file hash.