Windbg条件断点忽略条件本身

Question

我正在调试一个没有源代码的应用程序，我使用IDA PRO + Windbg作为调试器。我正在跟踪使用特定句柄值捕获对CloseHandle的调用，例如handle=0x14

我放置了一个条件断点，如下所示：

bp kernel32!CloseHandle "j (poi(@esp+4)=0x00000014) ''; 'gc'"

断点设置正常，但每次对CloseHandle的调用都中断，与我所尝试的相反，只有当第一个参数等于0x14时，才会中断

Answer 1

缺少一个=，条件等于操作符需要2 ==，而不是single =

0:000> bp kernel32!CloseHandle ".if(poi(@esp+4)!=0xcc) {? dwo(@esp+4);gc}.else{? dwo(@esp+4);.echo our handle;gc}"
0:000> g

Evaluate expression: 60 = 0000003c
Evaluate expression: 56 = 00000038

Evaluate expression: 204 = 000000cc <------
our handle <-------------

Evaluate expression: 200 = 000000c8    
Evaluate expression: 256 = 00000100   
Evaluate expression: 272 = 00000110    
Evaluate expression: 280 = 00000118    
Evaluate expression: 308 = 00000134
Evaluate expression: 312 = 00000138
Evaluate expression: 308 = 00000134
Evaluate expression: 324 = 00000144
Evaluate expression: 328 = 00000148
Evaluate expression: 324 = 00000144