Nachi Worm on Advanced Process Control Servers
- Event Year
- 2003
- Reliability
- Confirmed
- Country
- France
- Industry
- Chemical
Description
Staff noticed that the Advanced Process Controls (APC) Servers were getting slower and slower. Investigators found Nachi virus on 8 APCs (running Windows 2000) and disconnected these servers from production network for 5 hours. The virus was not detected on the Honeywell DCS stations (running Windows NT).
Impact
Incident reduced feed for several hours (Running in a safer mode).