Sometimes we get warnings from customers about viruses in our tools. Usual they are “false positives” because our tools are highly protected. Anti-virus software can not unpack the files and shows “Virus detected” warning. If you see “Crypt” word or its variations in a virus description it means that anti-virus software can not analyze that file.
To be sure that tools are virus-free you may use online virus scan service on the VirusTotal. Check the rows with “KAV (Kaspersky AV)”, “Dr. Web” and “ESET NOD32″ at least.