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Python模拟SCADA工业控制系统和Modbus协议通信，并对PLC进行漏洞分析和安全检测

Python 100.00%
detection ics protocol simulation vunerability

simulation_and_vulnerabilitydetection__industrialcontrolsystem's Introduction

ICS

a course about information security protection of the industrial control system

Update Info

  • 2019.03.09 python模拟modbus协议通信过程，参考ethernet protocol
  • 2019.03.23 更新PLC和PLC漏洞分析

Details

modbus protocol

仿真设计ModBus通信数据（具体报文格式参考第二次课PPT第32页）

  • （1）主设备访问从设备固定寄存器的状态 （该设备返回报文给主设备）
  • （2）主设备读取该从设备该寄存器的值（该设备返回报文给主设备）
  • （3）主设备修改该从设备该寄存器的值（该设备返回报文给主设备） 参考第二节PPT

PLC

enter description here 说明：

  1. PLC询问执行器速度
  2. PLC给的数据是u，u是电压值，执行器的驱动器根据u来调整速度（u可以认为是走到modbus线，也可以认为是走的电缆），整个方框里是PLC
  3. r不是发给执行器的 4.如果u走modbus线那么PLC每次都要发u，如果走普通电缆，则认为PLC设定目标速度后（这一步应该没有modbus通信),设备就开始不断报告（设备收到u再转换为速度） 参考matlab语言：（注意这里写错了，应该是4000） matlab 参考第三节PPT

PLC vulnerability analysis

分析垃圾邮件发送者对PLC的威胁和PLC的漏洞 参考第六节PPT

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