Question

我正在调试没有源的应用程序，我使用IDA PRO + Windbg作为调试器。我想用特定的句柄值来捕获CloseHandle的调用，例如handle = 0x14

我放了一个像这样的条件断点：

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

断点设置正常，但每次调用CloseHandle都会中断，与我正在尝试的相反，只有在第一个参数等于0x14时才会中断

Answer 1

您缺少 = 条件等于运营商需要两个== 而不是单个=

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

Windbg条件断点忽略条件本身

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