vscapi.dll is a core Dynamic Link Library file associated with the Roland Virtual Sound Canvas (VSC)
| Feature | Legitimate vscapi.dll | Malicious imposter | |---------|------------------------|--------------------| | | %ProgramFiles(x86)%\Common Files\Microsoft Shared\VSA\9.0\ | C:\Windows\System32\ , C:\Users\Public\ , temp folders | | Digital signature | Signed by Microsoft | Unsigned or invalid signature (check via right-click → Properties → Digital Signatures) | | Size | ~150–200 KB (varies by version) | Often <100 KB or >500 KB | | PE timestamp | 2005–2010 | Recent (e.g., 2023–2026) | | Network behavior | None | Contacts C2 servers, spawns PowerShell, injects into rundll32.exe | vscapi.dll
If you need to resolve this module failure, apply these fixes in order: 1. Perform a clean install (For Roland VSC Users) vscapi
: If the file exists in the program folder but not in System32 , manually copying it to C:\Windows\System32 may resolve "file not found" errors. 100 KB or >