File scan report
Verdict Safe
Is pvpoptimizer-
None of the 55 antivirus engines that checked it flagged this JAR, and the clean sandbox run provided no concrete corroboration for its two offensive-technique mappings.
Read the whole reasonShow less
Moderate evidence · No engine flags it, but no publisher signature confirms who made it.
If the download source and published hash are trustworthy, normal use is reasonable. Keep security protection enabled and rescan if the file changes or unexpected behavior appears.
Good practice2 tips
We found nothing harmful in this file.
Run it only if it came from the project's own website.
Keep your security software and system updates switched on.
No scanner can promise a file is 100% safe.
Antivirus results
0 of 55 flagged
- Flagged 0
- No detection 55
- No result 20
- Code signing Not applicable
- Test run Completed
- First seen 5mo ago
Chapter 02
Why we think so
1 point against it and 5 in its favour, checked against the scan evidence.
The reasoning behind this verdict
None of the 55 antivirus engines that checked it flagged the file, including the reporting major antivirus engines. One sandbox run mapped possible process injection and defense impairment, but it returned clean, identified no injected process, and contacted no host with an adverse cached reputation.
The antivirus result is uniformly favorable: none of the 55 antivirus engines that checked it flagged the JAR, and there is no family consensus. A completed sandbox run returned clean, although it mapped and T1562.001. Those mappings are not corroborated by a named injection target, a malicious sandbox result, persistence, or a known-malicious child. Reputation coverage included both observed domains, with no malicious or suspicious cached result; one was identified as analysis-environment background traffic. Research feeds and malware-specific YARA rules also supplied no corroborating hit, while the five files it created remain unclassified rather than proven benign.
What We Detected
None of the 55 antivirus engines that checked it flagged the JAR, and no engine supplied a malware-family label. Research intelligence also returned no MalwareBazaar match or malware-specific YARA rule.
Threat Behavior
One completed sandbox run returned clean but mapped T1055 (Process Injection) and T1562.001 (Impair Defenses). The evidence does not identify an injected target process, persistence mechanism, malicious child, or adverse host-reputation result. Both observed domains were covered by the host check, and one was identified as background activity from the analysis environment. Five written files it created lack saved verdicts, so they remain an evidence gap rather than a risk finding.
What To Do Now
Use the JAR only if it came from the expected Minecraft mod source and its hash matches the publisher's release information. Keep security software enabled and avoid granting unnecessary permissions.
Where this verdict could be wrong2 caveats
- The sandbox mapped process injection and impairment of defenses, but it supplied no injected process target and returned a clean run verdict.
- Five written files it created have no saved verdict, so their nature remains unconfirmed even though none is known to be malicious.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- None of the 55 antivirus engines that checked it flagged the file.
- The completed sandbox run returned clean and identified no injected target process.
- Both observed domains were checked, with no malicious or suspicious cached reputation.
- No malware-specific YARA rule or MalwareBazaar record matched the hash.
- No file it created is known to be malicious.
- The sandbox mapped possible process injection and defense-impairment techniques, though neither was concretely corroborated.
6 sources checked · all complete. See every source
Chapter 03
What it did in our test
It ran in our isolated test environment; no test environment rated what it did as risky.
Test run summary
Capture complete- 13sandbox rule tags
- 4spawned processes
- 0network contacts
- 11filesystem & mutex artifacts
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Sandbox verdicts
1- VT: CLEANclean
Techniques observed in the sandbox
13MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1055· Process injection
- T1059· Runs commands
- T1074
- T1082· System recon
- T1105· Network file transfer
- T1106
- T1129· Loads modules
- T1202
- T1518.001· Checks your AV
- T1562.001· Disables security
- T1564· Hides artifacts
- T1564.001· Hides artifacts
- T1564.003· Hides artifacts
Observed activity
Processes started
4Programs the file ran, with their command lines.
javaw.exe"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\<USER>\Desktop\download.jar"cmd.exeC:\Windows\SysWOW64\cmd.exe C:\Windows\system32\cmd.exe /c ""C:\Program Files\Java\jre1.8.0_441\bin\java.exe" -javaagent:"C:\Users\user\AppData\Local\Temp\jartracer.jar" -jar "C:\Users\user\Desktop\runtime.jar"" >> C:\cmdlinestart.log 2>&1java.exe"C:\Program Files\Java\jre1.8.0_441\bin\java.exe" -javaagent:"C:\Users\user\AppData\Local\Temp\jartracer.jar" -jar "C:\Users\user\Desktop\runtime.jar"java/usr/bin/java -jar /tmp/sample.jar
Files
11Files the file created, changed or deleted.
- Written
C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\6816 - Written
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp - Written
C:\ProgramData\Oracle\Java\.oracle_jre_usage\17dfc292991c8786.timestamp - Written
C:\Users\user\AppData\Local\Temp\hsperfdata_user - Written
C:\Users\user\AppData\Local\Temp\hsperfdata_user\6904 - Written
C:\cmdlinestart.log
Show all 11 entries for files
- Written
\Device\ConDrv\\Connect - Written
/proc/3522/coredump_filter - Written
/tmp/hsperfdata_root/3522 - Deleted
C:\Users\user\AppData\Local\Temp\hsperfdata_user\2328 - Deleted
/tmp/hsperfdata_root/3522
Sandbox background — not the file
4The analysis machine's own processes and connections, recorded in every run.
- VM process
icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M - VM process
conhost.exeC:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 - VM host
eip-terr-na.cdp1.digicert.com.akahost.net - VM host
nexusrules.officeapps.live.com
Files this sample writes at runtime
This file drops 3 children at runtime. None are currently flagged malicious in our cache. 3 have no saved verdict and were not checked; that is missing coverage, not a finding.
- 256f1c958ceca3b4defe…b9f8a4Not checkedno saved verdict
- a41b0c25feab05cda330…fc5a45Not checkedno saved verdict
- 77bd26cd7875b6540065…5df05aNot checkedno saved verdict
Chapter 04
Technical details
None of the 55 antivirus engines that checked it flag it.
Sources checked
Every check behind this verdict
6 sources checked · all complete. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- Last analyzed
- Oct 13, 2026, 6:00 PM UTC
- SHA-256
37bf9cb7423de87ecd54f7cbdc61481cfed495940b0b82f9a107681b55a17ebd- SHA-1
ff6900204311fbfb76480f083c5bd0760f8fa1a7- MD5
75b408c922dee7b2ff072c41afcba642
About this file
pvpoptimizer-1_3_mc1_21_11_Aojqfw.jar is a JAR file of 35.1 kB.
- Type and size
- JAR · 35.1 kB
- Signer
- Not applicable
- First seen
- May 22, 2026On VirusTotal.
- Submitted by
- 61 distinct sources
First scanned
Antivirus consensus
0 of 55 engines flagged this file
20 of the 75 engines returned no result for this file (file type not supported, or the scan did not finish), so they did not check it.
- Tier-111 engines0flagged
- Tier-232 engines0flagged
- Low-trust12 engines0flagged
View all 75 engine results
- AcronisClean
- AhnLab-V3Clean
- AlibabaClean
- alibabacloudClean
- ALYacClean
- Antiy-AVLClean
- APEXNo result
- ArcabitClean
- AvastNo result
- Avast-MobileClean
- AVGNo result
- AviraClean
- BitDefenderNo result
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealNo result
- ClamAVClean
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceNo result
- CynetClean
- DeepInstinctNo result
- DrWebClean
- ElasticNo result
- EmsisoftClean
- ESET-NOD32Clean
- F-SecureClean
- FortinetClean
- GDataClean
- GoogleClean
- GridinsoftClean
- huorongClean
- IkarusClean
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyNo result
- KingsoftClean
- LionicClean
- MalwarebytesClean
- MaxSecureClean
- McAfeeDClean
- MicrosoftClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PaloaltoNo result
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighNo result
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisNo result
- TencentClean
- TrapmineNo result
- TrellixENSNo result
- TrendMicroNo result
- TrendMicro-HouseCallNo result
- TrustlookClean
- VaristClean
- VBA32No result
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootClean
- XcitiumClean
- YandexClean
- ZillyaNo result
- ZoneAlarmClean
- ZonerClean
Signatures and behavior heuristics
Low-severity pattern matches — worth noting but not on their own cause for alarm.
VirusTotal's sandbox summary maps this run to MITRE T1055 (Process Injection), but no injected process of the sample's own was recorded (the analysis VM's own WMI adapter, crash handlers and Chrome updater are not counted). VirusTotal maps T1055 on about half of all files no engine flags, so the mapping alone is not evidence of injection.
EvidenceT1055 (sandbox MITRE mapping)
How widely this file has been seen
Moderate prevalence — neither rare nor common. No strong prior applies.
Chapter 05
Questions & answers
Short answers to the 6 questions people ask most about this file.
Is pvpoptimizer-1_3_mc1_21_11_Aojqfw.jar safe?
What is pvpoptimizer-1_3_mc1_21_11_Aojqfw.jar?
How many antivirus engines detected pvpoptimizer-1_3_mc1_21_11_Aojqfw.jar?
What is the SHA-256 hash of pvpoptimizer-1_3_mc1_21_11_Aojqfw.jar?
Is it safe to open or run pvpoptimizer-1_3_mc1_21_11_Aojqfw.jar?
How up to date is this analysis of pvpoptimizer-1_3_mc1_21_11_Aojqfw.jar?
Community
Member reviews and reports for this exact file hash.