Can be compiled with i686-w64-mingw32-gcc sandbox.c -s -O3

Raw ratios, lower is more likely physical machine:

• Wine on i7-1165G7 (all cores enabled): 0.26
• Wine on i7-1165G7 (all cores except 1 parked): 0.24
• Native Windows 10 on Pentium Gold 4425Y: 4.19
• Native Windows 10 on Intel i5-5200U: 0.35
• Windows 7 on KVM (1 core): 9.07
• Windows 7 on KVM (8 cores): 9.89
• Triage Windows 7: 6.59
• any.run Windows 7: 48.79
• Triage Windows 10 1703: 6.09
• Triage Windows 10 2004: 7.23
• VirusTotal Microsoft Sysinternals: 30.91
• VirusTotal Jujubox: 157.27
• VirusTotal Zenbox: 6.13