Since a clean is nearly impossible to guarantee, here are three safer alternatives.
Right-click the .exe → Properties → Digital Signatures. Legitimate versions will have no signature . If it shows an unknown signer like "Digital River" or "Softonic," abort. warkey download 68 link
While older versions were XP-focused, version 6.8 is noted for stable performance on Windows 7, 8, and 10 Warcraft III Version Support: Since a clean is nearly impossible to guarantee,