Drago installation files are submitted to an online antivirus scanner: Jotti's malware scan.

You can check the results given by a bunch of antivirus software with the following links:

• 4.33 installer
• 4.33 portable
• 4.32 installer
• 4.32 portable
• 4.31 installer
• 4.31 portable
• 4.30 installer
• 4.30 portable
• 4.23 installer
• 4.23 portable

In case of any doubt about your installation file, you can compare the MD5 signatures. Just google "MD5 download" to get a MD5 checker.