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Signature Detail

Security Intelligence Center
Signatures
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Short Name

SCADA:MODBUS:BUSY-EXCEPTION

Severity

Medium

Recommended

No

Category

SCADA

Keywords

scada modbus

Release Date

2007/02/20

Update Number

1213

Supported Platforms

idp-4.0.110090709+, isg-3.1.134269+

MODBUS: Slave Device Busy Exception Code Delay


This signature detects postponed actions and/or alarms, which can indicate an attacker is attempting to create a denial of service (DoS).

References

  • URL: http://en.wikipedia.org/wiki/Modbus
  • URL: http://www.lammertbies.nl/comm/info/modbus.html
  • URL: http://www.modicon.com/TECHPUBS/intr7.html

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