File scan report
Verdict Safe
Is bassmidi.
Single low-weight detection on a signed audio-library DLL with no sandbox malice or major consensus.
Moderate evidence · No engine flags it, but no publisher signature confirms who made it.
The evidence supports continued safe use when the file originates from a trusted source; monitor for any unexpected changes in behaviour.
Good practice2 tips
We found nothing harmful in this file.
Use it only as part of a program you got from the developer's own website.
Keep your antivirus and Windows updates switched on.
No scanner can promise a file is 100% safe.
Reads the latest antivirus results for this file's hash. Nothing is uploaded.
Antivirus results
1 of 71 flagged
- Flagged 1
- No detection 70
- No result 4
- Code signing Un4seen Developments Ltd
- Test run Completed
- First seen 6mo ago
Chapter 02
Why we think so
2 points against it and 3 in its favour, checked against the scan evidence.
The reasoning behind this verdict
One smaller engine flagged the file with a generic AI label; 74 others were silent. The DLL is signed by Un4seen Developments Ltd, shows only routine behaviour in one sandbox, and has no prior malicious history.
The single Malwarebytes detection is generic and smaller, leaving tier1Malicious at zero. The certificate is valid, yet the signer has no established track record in our data. Sandbox execution produced only techniques common in legitimate software and no malicious verdict. The low-severity rule-based about the signer name is outweighed by the absence of corroborating signals across 75 engines and external intel sources.
What We Detected
One of the 71 antivirus engines that checked it (Malwarebytes) returned a generic AI label; the remaining 74 engines, including all 17 major antivirus engines, reported the file clean. The DLL carries a valid code-signing certificate from Un4seen Developments Ltd, but that signer has no prior samples in our database.
Threat Behavior
One sandbox execution recorded five MITRE techniques common in legitimate software and no offensive techniques. No domains, IPs, or URLs were contacted, and no programs it started or dropped files were observed.
What To Do Now
Keep security software enabled. The file can be used if its source is trusted, but treat any unexpected appearance of bassmidi.dll with caution and verify its digital signature before execution.
Where this verdict could be wrong1 caveat
- Single smaller detection paired with a generic AI label and no major consensus may represent a false positive on a legitimate audio library component.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 74 of the 71 antivirus engines that checked it reported clean
- Valid, verified code signature
- No sandbox malice or malicious host contact
- Signer has no prior sample history
- Low-severity rule flagged short generic company name
6 sources checked · 5 complete · 1 not needed or not applicable. 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- 5sandbox rule tags
- 1spawned processes
- 0network contacts
- 0filesystem & mutex artifacts
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Techniques observed in the sandbox
5MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1027· Obfuscated code
- T1027.002· Obfuscated code
- T1033· Reads user info
- T1071· Application protocol
- T1082· System recon
Observed activity
Processes started
1Programs the file ran, with their command lines.
rundll32.exe"C:\Windows\System32\rundll32.exe" "C:\Users\<USER>\Desktop\init.dll",#1
Chapter 04
Technical details
1 of the 71 antivirus engines that checked it flags it; signed by Un4seen Developments Ltd.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.
Engines that flagged it 1
The Safe verdict weighed these detections and treats them as non-decisive.
- MalwarebytesMalware.AI.3891284720
File fingerprint
- Last analyzed
- Sep 4, 2026, 3:28 AM UTC
- SHA-256
2e68321b076bea4e3a0c192c6e1ad6b32592268c540cc6ef9f0f4596e39c3c7b- SHA-1
79bd5f9d64906fddd2501d55cd691785898b60e5- MD5
0fa5ab7bd1586d5fb3ce1159fc065bbf
About this file
bassmidi.dll is a Win32 DLL file of 72.9 kB.
- Type and size
- Win32 DLL · 72.9 kB
- Signer
- Un4seen Developments LtdValid code signature.
- First seen
- Apr 30, 2026On VirusTotal.
- Submitted by
- 4 distinct sourcesRarely seen: few people have submitted this exact file.
- Packer
- Petite (section names)Packing hides code; legitimate installers use it too.
- Entropy
- 7.26 of 8A code section is highly compressed or encrypted.
First scanned
Antivirus consensus
1 of 71 engines flagged this file
4 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-118 engines0flagged
- Tier-236 engines1flagged
- Low-trust17 engines0flagged
View all 75 engine results
- MalwarebytesMalicious: Malware.AI.3891284720
- AcronisClean
- AhnLab-V3Clean
- AlibabaClean
- alibabacloudClean
- ALYacClean
- Antiy-AVLClean
- APEXClean
- ArcabitClean
- AvastClean
- Avast-MobileNo result
- AVGClean
- AviraClean
- BitDefenderClean
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealClean
- ClamAVClean
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceClean
- CynetClean
- DeepInstinctClean
- DrWebClean
- ElasticClean
- EmsisoftClean
- ESET-NOD32Clean
- F-SecureClean
- FortinetClean
- GDataClean
- GoogleClean
- GridinsoftClean
- huorongClean
- IkarusClean
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyClean
- KingsoftClean
- LionicClean
- MaxSecureClean
- McAfeeDClean
- MicrosoftClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PaloaltoClean
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighClean
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisClean
- TencentClean
- TrapmineClean
- TrellixENSClean
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookNo result
- VaristClean
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootClean
- XcitiumClean
- YandexClean
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
Signatures and behavior heuristics
Low-severity pattern matches — worth noting but not on their own cause for alarm.
Signed by "Un4seen Developments Ltd" — short generic company CN. Paired with 1 engine hit(s); possible stolen, fraudulent, or reseller-purchased code-signing certificate.
EvidenceUn4seen Developments Ltd
Section entropy & packers
Executable sections have high entropy (7.2+) — the code is compressed or encrypted and only decrypted at runtime. Classic packing behaviour.
Packers compress or encrypt the executable and only unpack it at runtime. Legitimate commercial software uses them too — but if the file is also unsigned and rare, it's a strong malware signal.
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 7 questions people ask most about this file.
Is bassmidi.dll safe?
What is bassmidi.dll?
How many antivirus engines detected bassmidi.dll?
Is bassmidi.dll digitally signed?
What is the SHA-256 hash of bassmidi.dll?
Is it safe to use bassmidi.dll?
How up to date is this analysis of bassmidi.dll?
Community
Member reviews and reports for this exact file hash.