PC_SALITY.EN Virus Infects DCS Servers and Historians
- Event Year
- 2009
- Reliability
- Confirmed
- Country
- South Africa
- Industry
- Chemical
Description
OPC Services stopped running on two OPC servers following a hardware & application software upgrade of 4 OPC client machines that were connected to the servers. The client upgrades were aborted and the old machines were reinstalled. The OPC servers could not be rebooted. Upon investigation the PE_SALITY virus was found on both of the OPC servers.
Impact
Operators ran the plant “blind” for over 8 hours while engineering rebuilt both of the OPC servers.