modified detection

• 501025tenable_ot_siemens_CVE-2017-13099.nasl • 1.4
• 500213tenable_ot_rockwell_CVE-2017-16740.nasl • 1.10
• 500747tenable_ot_siemens_CVE-2018-4834.nasl • 1.7
• 501427tenable_ot_moxa_CVE-2017-16727.nasl • 1.6
• 500106tenable_ot_rockwell_CVE-2017-12089.nasl • 1.9
• 500921tenable_ot_wago_CVE-2018-5459.nasl • 1.6
• 500081tenable_ot_rockwell_CVE-2017-14470.nasl • 1.6
• 500104tenable_ot_rockwell_CVE-2017-14466.nasl • 1.6
• 500108tenable_ot_rockwell_CVE-2017-12093.nasl • 1.10
• 500273tenable_ot_rockwell_CVE-2017-14471.nasl • 1.6
• 500214tenable_ot_rockwell_CVE-2017-14472.nasl • 1.6
• 500077tenable_ot_rockwell_CVE-2017-14473.nasl • 1.6
• 502314tenable_ot_hikvision_CVE-2018-6413.nasl • 1.3
• 500272tenable_ot_rockwell_CVE-2017-14464.nasl • 1.6
• 500207tenable_ot_rockwell_CVE-2017-14465.nasl • 1.6