Summary
Acunetix 360 detected a WS_FTP Log File.
WS_FTP is an FTP client and it creates a log file named WS_FTP.LOG, which contains sensitive information such as file names, internal paths, etc.
Impact
There is no direct impact, however this information can help an attacker identify other vulnerabilities or help during the exploitation of other identified vulnerabilities.
Remediation
If it is a file required by the application, change its permissions to prevent public users from accessing it. If it is not, then remove it from the web server.