A safe Stp-se4dx12.exe will typically:
Run full antivirus/anti-malware scans with: Stp-se4dx12.exe
If you meant a legitimate file, possible corrections: A safe Stp-se4dx12
But Stp-se4dx12.exe matches none of these. But Stp-se4dx12
Before deleting anything, verify the file’s origin.