Is 67client.jar safe?
Six tier-1 engines detect this newly observed JAR as Java malware, while runtime evidence includes process injection and service-related activity.
The JAR was flagged by 18 of 75 engines, including six high-trust detections describing Java trojan or dropper activity. One sandbox did not issue a malware verdict, but it recorded T1055 and T1543.002, and the file has virtually no established prevalence or trusted history.
81b87ed4072410c583…45a5eecdf721a6Recommended next actions
Before opening or running
Do not open or run it. Delete this Java file from the device, then empty the Recycle Bin or Trash.
If you already opened or ran it
Disconnect from the internet, start a full or offline antivirus scan, then secure important accounts from a clean device.
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 JAR was flagged by 18 of 75 engines, including six high-trust detections describing Java trojan or dropper activity. One sandbox did not issue a malware verdict, but it recorded T1055 and T1543.002, and the file has virtually no established prevalence or trusted history.
Eighteen of 75 engines detected the sample, and six independent high-trust votes make an incidental heuristic false positive unlikely. ESET-NOD32 and Fortinet both use Agent.IQ labels, while several other engines identify GenericGBA or generic Java trojan activity. The family labels do not form a strong consensus, so attribution remains uncertain. Runtime evidence maps activity to process injection (T1055) and service execution (T1543.002), reinforcing the detection pattern. The clean sandbox verdict and absence of confirmed malicious children are meaningful counter-signals, but five child files remain unresolved and no complete contacted-host reputation result is available. Its newly observed, single-source prevalence further limits any benign explanation.
What We Detected
18 of 75 antivirus engines flagged the JAR, including six high-trust detections. ESET-NOD32 identified Java/TrojanDropper.Agent.IQ, Fortinet reported Java/Agent.IQ, and BitDefender reported Java.Trojan.GenericGBA.41305. The labels support Java trojan or dropper activity, although they do not establish one reliable named family.
Threat Behavior
One completed sandbox run mapped activity to process injection (T1055) and service execution (T1543.002). The run itself produced a clean sandbox verdict and observed no network contacts, but a complete contacted-host reputation check is unavailable. Five dropped files were inspected without a confirmed harmful child; however, all five child verdicts remain unresolved.
What To Do Now
Do not launch the JAR. Keep endpoint protection enabled, quarantine or delete the file, and scan the system if it was already executed. On an affected machine, review Java-launched processes, persistence mechanisms, and recently created files before restoring normal use.
Where this verdict could be wrong5 caveats
- behaviour.hasMaliciousSandboxVerdict=false: the single completed sandbox run produced a clean verdict despite its offensive-technique mappings.
- droppedChildren.inspected=5 and droppedChildren.hasMaliciousChild=false, although all five child verdicts remain unknown.
- externalIntel.yaraify.ruleCount=0 and externalIntel.circl.hit=false provide no researcher-curated corroboration.
- Seven tier-1 engines reported the sample clean, including Kaspersky and DrWeb.
- engines.tier1FamilyConsensus.strong=false; labels vary between generic Java malware, GenericGBA, and Agent.IQ.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- The single sandbox run did not issue a malware verdict.
- No observed domains, IP addresses, or URLs were recorded during the run.
- No malicious child was confirmed among five inspected dropped files.
- No YARAify, CIRCL, or MalwareBazaar corroboration was present.
- Seven tier-1 engines reported no detection.
- 18 of 75 antivirus engines reported malware.
- Six high-trust engines flagged the sample.
- ESET-NOD32 and Fortinet identified Agent.IQ-style Java trojan activity.
- Runtime evidence includes T1055 process injection.
- Runtime evidence includes T1543.002 service execution.
- The file is newly observed and has only one known submitter.
Quarantine the JAR and do not execute it; keep endpoint protection enabled. If it already ran, perform a full scan and investigate Java processes, persistence, and newly written files.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete18 of 75 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Not runNo contacted-host reputation check is recorded.
No timestamp recordedYARA
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
- 15MITRE ATT&CK techniques
- 8spawned processes
- 0network contacts
- 7filesystem & mutex artifacts
What this file does
Observed actions and their security significance
High concern: Injected code into another process, a technique that can conceal execution.
High concern: Created or modified a system service, which can keep code running.
Moderate concern: Contained obfuscated or packed code that makes inspection harder.
Moderate concern: Runs hidden system commands (script or shell).
Moderate concern: Transferred a file over the network; malware can use this to fetch additional payloads.
Moderate concern: Checks which security software you have installed.
Note: Collects details about your system.
These are observed capabilities from an isolated analysis. A technique does not prove malicious intent on its own, and the file never ran on your device.
Threat context
How trojans work
A trojan disguises itself as something useful or harmless to trick you into running it. Once open, it does its real job in the background — anything from stealing data to opening a back door or downloading more malware.
Bottom line:The disguise is the whole trick, so a trustworthy-looking name or icon means nothing.
Attack story
Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.
Input file
The submitted object
- FileObserved
67client.jar
81b87ed4072410c58315c12710dc2f9334d8454085e7ac53d945a5eecdf721a6
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\<USER>\Desktop\runtime.jar"
02Isolated runtime analysis - ProcessObserved
Observed process
C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
5836
C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\5836
04Isolated runtime analysis - Written fileObserved
3903daac9bc4a3b7.timestamp
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
5 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.
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.
- C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\5836
- C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
- /proc/3550/coredump_filter
- /tmp/hsperfdata_root/3550
- /var/log/auth.log.1.gz
- /tmp/hsperfdata_root/3550
Files this sample writes at runtime
This file drops 5 children at runtime. None are currently flagged malicious in our cache.
- 22631276380ac1f7fb7a…101862Never scannednever seen before
- 3a766bff14896d9c8b95…8caa58Never scannednever seen before
- d87c5f3cdfb5b7c0510e…1ade9eNever scannednever seen before
- 61625fd8b084f70f242d…55abd2Never scannednever seen before
- 8e8711854186c68e2368…4a3c7cNever 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
- 18 / 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
1 high-confidence signature or behavior rule matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 02
18 of 75 antivirus engines flagged the file, including ALYac and Antiy-AVL.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 03
The hash has been submitted 1 time from 1 source.
ProvenanceDerivedSourceSaved report factsObserved at - 04
Scanned file: 67client.jar — 81b87ed4072410c58315c12710dc2f9334d8454085e7ac53d945a5eecdf721a6
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\<USER>\Desktop\runtime.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: 5836 — C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\5836
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: 3903daac9bc4a3b7.timestamp — C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
Category: generic-trojan
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\runtime.jar"
18 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. 18 antivirus detections make that low prevalence materially relevant, but rarity alone is not proof of malware.
Fingerprint and provenance
- File name
- 67client.jar
- Format
- JAR
- Code signing
- Not applicable to this file type
- Size
- 3.9 MB
- Last analyzed
- Sep 29, 2026, 9:24 AM UTC
81b87ed4072410c58315c12710dc2f9334d8454085e7ac53d945a5eecdf721a6Safety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file is dangerous. Treat it as harmful and remove it.
- Recovery step 01
Don't open or run this Java file. Delete this Java file from the device, then empty the Recycle Bin or Trash.
- Recovery step 02
If you already opened or ran it, disconnect from the internet and start with a full antivirus scan or Microsoft Defender Offline scan. If compromise is suspected or the problem persists, use a reputable second-opinion scanner and follow incident-recovery or clean-reinstall guidance.
- Recovery step 03
If you typed any passwords while it was open, change them from a device you trust.
- Recovery step 04
Get a fresh copy from the publisher's official site and verify its exact hash when possible.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is 67client.jar a virus?
What is 67client.jar?
How many antivirus engines detected 67client.jar?
What should I do if I already opened or ran 67client.jar?
How do I remove 67client.jar?
What kind of malware is 67client.jar?
What is the SHA-256 hash of 67client.jar?
How up to date is this analysis of 67client.jar?
Community
Member reviews and reports for this exact file hash.