android dump内存办法大全

1.ida运行脚本

autoi,fp,begin,end;

fp=fopen("D:\\xx.so","wb");

begin=0xAC338000;

end=0xAC393000;

for(i=begin;i

{

fputs(Byte(i),fp);

}

 

2.gdb dump

dump binary memoryC:\Users\DW\Desktop\baidu_jiagu\so\baidu 0xa8878000 0xA8B9C000

 

 

3.dd命令

 dd  if=/proc/1214/mem of=mmm skip=a8878000 ibs=1 count=324000 这个不行，网上误传

 

4.修改内核

dalvik/vm/oo/Class.cpp此文件的

 

initclass在加载cinit类的时候加入下面的代码

我们将so dump

 

 

5 自己写工具dump内存

#include 

 

#include 

#include 

#include 

#include 

#include 

#include

//#define LOG_TAG"snow"

 

//#defineLOGE(...)    __android_log_print(ANDROID_LOG_ERROR, LOG_TAG,__VA_ARGS__)

//使用办法

//xx pid beginaddrendaddr

int  main(intargc,char *argv[]) {

   char filename[256] = {0};

   if(4!=argc)

   {

      printf("please input xx pid beginaddr endaddr\n");

 

      exit(1);

 

   }

   printf("argv[2]=%s-->argv[3]=%s-\n",argv[2],argv[3]);

   long long beginaddr = strtoll(argv[2],NULL,16);

   long long endaddr=strtoll(argv[3],NULL,16);

   long long length=endaddr-beginaddr;

   //printf("-fuck-length=%x---\n",length);

   //printf("beginaddr=%x,endaddr=%x-\n",beginaddr,endaddr);

   sprintf(filename,"/proc/%s/mem",argv[1]);

   printf("will open filepath=%s\n",filename);

   FILE* fpsrc=fopen(filename,"r");

   FILE* fpdest=fopen("dumpMemory","wb");

   if(NULL==fpsrc||NULL==fpdest)

   {

       printf("open file error!!!\n");

       exit(1);

   }

   int c;

   fseek(fpsrc,beginaddr,SEEK_SET)

   while((c=fgetc(fpsrc))!=EOF&&length-->0)

 

   {

      fputc(c, fpdest);

   }

   fclose(fpsrc);

   fclose(fpdest);

   return 0; 

}

LOCAL_PATH :=$(call my-dir)  
include $(CLEAR_VARS)  
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -llog   
#LOCAL_ARM_MODE := arm  
LOCAL_MODULE    := dump  
LOCAL_SRC_FILES := dump.c  
include $(BUILD_EXECUTABLE)  

 

注意以上五种办法，目前的加壳都有反调试模块，会对mem文件进行检测，比如360会检测/proc/pid/mem文件，和监控maps文件故此上面读mem文件会导致闪退，，总的来说第四种办法最管用！！！！！