Virus alert

Crisplant recommends customers who have Siemens Simatic Step 7 and/or Siemens WinCC software installed to take preventative measures to protect their systems.

Crisplant Hotline has taken the necessary measures to virus protect our Remote Logon Systems and thereby also Crisplant customers’ systems from being virus infected while Crisplant Hotline support is performed by Crisplant Hotline logon.
Crisplant will continue to monitor the threat level on a daily basis. We are not currently aware of any system delivered by Crisplant which has been infected with Stuxnet, however Crisplant is fully aware of the potential threat towards our customers’ systems.

About Stuxnet trojan
The Stuxnet virus has attacked industrial systems around the world. These systems have all been equipped with Siemens Simatic Step 7 and/or WinCC software.

  • Step 7 is used by engineers to create and configure software for Siemens' programmable controllers (PLC) that operate in factories and manufacturing processes
  • WinCC visualization software monitors automated processes. It is a supervisory control and data acquisition (SCADA) and human-machine interface (HMI) system

The Stuxnet could infect Microsoft Windows computers where Siematic Step 7 or WinCC software is installed, and from these it infects the Siemens PLC via the PLC code.

How to protect your system
Crisplant recommends customers who have Siemens Simatic Step 7 and/or WinCC software installed to take preventative measures to protect their systems. Updated virus protection software must be installed on computers used for Siemens Simatic Step 7 and/or WinCC software.
Crisplant Hotline engineers are instructed in virus awareness and how to protect against the virus. Crisplant Hotline’s sophisticated Remote Logon Systems are protected by using antivirus systems to catch and remove any infection.
Crisplant Hotline Remote Logon access will only take place using Crisplant Access Control System (CACS), a virtual computer environment where Crisplant constantly runs updated anti virus software. CACS is updated on an ongoing basis using the latest Microsoft Windows security patches.

For more detailed information we refer to Symantec, McAfee, Siemens and Wikipedia:

Symantec

McAfee (Blog)

Siemens

Wikipedia