The best way to verify that Zipware or any file on the internet is safe to download is to use one of the many independant websites that can scan files for malware. All files have a unique signature called a checksum that can be used to verify the identity of a file. Once its identity has been verified it can be scanned for viruses and delcared clean or otherwise. As the checksum of a file can be calculated at any time and cannot change unless the file contents do, these websites can maintain a list of all files and their status. Below are a list of sites that you can use to test both files and websites:
www.virustotal.com - A subsidiary of Google is a free online service that analyzes files and URLs enabling the identification of viruses, worms, trojans and other kinds of malicious content detected by antivirus engines and website scanners. It currently uses about 50 different anti-virus products to test a file or link. You can see Zipwares by clicking the following link or by uploading Zipware yourself: www.virustotal.com/#/file/0abd67edd302610c2f17419320c6a53dc1f441807e45e87b0c974d34ee6c3053 . The SHA256 checksum value that uniquely identifies a file and that you see on Virustotal's results page should match exactly with the checksum shown on Zipware's download page.
www.google.com/safebrowsing - Safe Browsing is a service provided by Google that enables applications to check URLs against Google's constantly updated lists of suspected phishing and malware pages
www.stopbadware.org/clearinghouse/search - StopBadware is a nonprofit anti-malware organization based in Cambridge, Massachusetts. Our work makes the Web safer through the prevention, mitigation, and remediation of badware websites. We protect people and organizations from becoming victims of viruses, spyware, scareware, and other badware.