Post-Stuxnet Industrial Security: Zero Day Discovery and Risk Containment of Industrial Malware

March 3, 2011 - Preventing the next Stuxnet-like attack on the control world might be impossible, but operators can mitigate the effects and contain worms and viruses through early detection. Phoenix Contact’s new white paper explains how the FL mGuard with CIFS Integrity Monitoring can provide early warning about malware similar to Stuxnet.

Researchers at the University of Ostwestfalen-Lippe in Lemgo, Germany, have confirmed that the mGuard would have recognized the manipulations of the Stuxnet worm on day zero of the infection. Despite the attention Stuxnet has received, most cyber security experts now say that the greater threat to control systems is not from Stuxnet itself, but from copycats who could use Stuxnet as a blueprint for future attacks.

The mGuard is a security device that provides stateful firewall, router and VPN capabilities in a single, rugged package. The mGuard’s CIFS Integrity Monitoring function allows the user to monitor configurable sets of files for unexpected modifications of executable code. When initialized, it computes a baseline of signatures for all monitored objects, then periodically checks them for any deviations.

The mGuard discovers suspect modifications promptly, and reports them via SNMP and e-mail. If Stuxnet or another piece of malware had modified a monitored Windows file, mGuard would have picked it up and notified the network management system or responsible administrator.

The white paper also explains other preventive steps the user can take to contain any malware that the mGuard would detect.

Click here to download “Post-Stuxnet Industrial Security: Zero Day Discovery and Risk Containment of Industrial Malware,” by Torsten Rössell of Innominate Security Technologies.

About Phoenix Contact
Phoenix Contact develops and manufactures industrial electrical and electronic technology products that power, protect, connect and automate systems and equipment for a wide range of industries. Phoenix Contact GmbH & Co. KG, Blomberg, Germany, operates 47 international subsidiaries, including Phoenix Contact USA in Middletown, Pa.

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