File scan report
Verdict Safe
Is libsoundio.
Widely distributed audio library with 17 major antivirus engines clean, no malicious sandbox verdict, and consistent community NO_THREAT verdicts despite rule-based sandbox…
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Strong evidence · Widely seen for a long time, and nothing harmful found.
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
0 of 71 flagged
- Flagged 0
- No detection 71
- No result 4
- Code signing Unsigned
- Test run Completed
- First seen 7y ago
Chapter 02
Why we think so
0 points against it and 5 in its favour, checked against the scan evidence.
The reasoning behind this verdict
libsoundio.dll is a legitimate open-source audio library with 2,879 submitters and 3,850 submissions since 2019. All 17 major antivirus engines report clean or undetected. Community analysis (FileScan.IO) confirms NO_THREAT verdict.
The file exhibits a clean profile across all major antivirus engines (Avast, BitDefender, Kaspersky, ESET, Fortinet, Emsisoft, Ikarus, DrWeb, F-Secure, GData, Avira, AVG) with zero malicious detections from major antivirus engines. Its prevalence as a widely seen and long established file with nearly 3,000 unique submitters and 3,850 submissions over 7+ years indicates widespread, established distribution. Community analysis from FileScan.IO consistently reports NO_THREAT or INFORMATIONAL verdicts with 100% confidence. The YARA rule match (pe_detect_tls_callbacks) is a structural detection, not a malware family signature. The file is consistent with a legitimate library.
What We Detected
libsoundio.dll is a 64-bit Windows DLL submitted 3,850 times by 2,879 unique sources since February 2019. Zero malicious detections across 71 reporting engines.
Threat Behavior
Sandbox analysis observed the DLL being loaded via rundll32.exe and contacting 5 external IP addresses without DNS resolution. However, no malicious sandbox verdict was recorded, no malicious files it created were confirmed, and the contacted IPs are not in our malicious host cache. Community analysis (FileScan.IO) reports NO_THREAT or INFORMATIONAL verdicts. The file is consistent with libsoundio, a legitimate open-source audio library.
What To Do Now
No action required. The file is safe to use. The rule-based sandbox observations reflect test-environment execution patterns rather than confirmed malicious activity. If you encounter this file in your environment, it is likely a legitimate audio library component.
Where this verdict could be wrong3 caveats
- triggeredHeuristics fired on two of our behaviour rules — sandbox observed the DLL being injected into rundll32.exe and contacting 5 external IPs without DNS. However, these are rule-based observations in a test environment, not engine verdicts; the absence of major consensus and the clean community verdicts suggest the behaviours are consistent wit
- The file is unsigned and old (2,672 days), which could indicate abandoned or legacy software; however, libsoundio is a real open-source audio library (github.com/andrewrk/libsoundio), and the community comments cite github.com as a contacted domain, consistent with legitimate library distribution.
- Direct-IP a control server rule is typically a strong malware signal, but in this case the IPs (204.79.197.203, 20.189.173.22, 13.89.179.12, 20.42.65.92, 20.189.173.20) are not in our malicious host cache, and the sandbox verdict is not malicious — the behaviour may reflect legitimate library functionality or test-environment artifact.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 17 major antivirus engines report clean or undetected
- 2,879 unique submitters, 3,850 submissions since 2019 — widely distributed, long-established
- Community analysis (FileScan.IO) confirms NO_THREAT verdict with 100% confidence
- No malicious sandbox verdict. No complete contacted-host reputation result was available.
- Consistent with legitimate open-source audio library (libsoundio)
6 sources checked · 5 complete · 1 partial. 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- 10sandbox rule tags
- 14spawned processes
- 4network contacts
- 40filesystem & mutex artifacts
Includes 10 mapped techniques, every process, file, registry and network entry and 10 dropped files.
Show the technical evidenceChapter 04
Technical details
None of the 71 antivirus engines that checked it flag it; no publisher signature.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 1 partial. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- Last analyzed
- Jun 10, 2026, 1:28 PM UTC
- SHA-256
b266f223cb08279b8dd09e08538fc9468255d904b609c28775dbaeffbe753ddb- SHA-1
95a6e6de7f452ed7cb7bc02730cde999f27cca53- MD5
b492d241dbae5fd322b1779226a3f0a9
About this file
libsoundio.dll is a Win32 DLL file of 85.5 kB.
- Type and size
- Win32 DLL · 85.5 kB
- Signer
- UnsignedNo code signature.
- First seen
- Feb 15, 2019On VirusTotal.
- Submitted by
- 2,879 distinct sources
- Packer
- None detected
- Entropy
- 5.56 of 8
First scanned
Includes every engine result (75), 2 matched signature rules, PE section entropy and packers and how widely the file has been seen.
Show the technical evidenceChapter 05
Questions & answers
Short answers to the 6 questions people ask most about this file.
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Community
Member reviews and reports for this exact file hash.