Searching for files like typically leads to third-party "crack" or "repack" sites rather than official software channels. This specific file appears to be a compressed archive containing a version of IObit Driver Booster Pro Go to product viewer dialog for this item. (likely version 9.0.1.104). Risks of Downloading Cracked Software Archives
Downloading software from unofficial sources in .rar formats carries significant security risks: How risky is Piracy: Do cracks contain malware?