= 4 5 HeapAlloc = 31556568 NumGoroutine = 4 38 HeapAlloc = 42043600 NumGoroutine = 4 21 HeapAlloc...= 52529512 NumGoroutine = 5 6 HeapAlloc = 63015760 NumGoroutine = 4 7 HeapAlloc = 73500784...HeapAlloc = 178351296 NumGoroutine = 3 114 HeapAlloc = 178351296 NumGoroutine = 3 112 HeapAlloc...NumGoroutine = 3 146 HeapAlloc = 178351296 NumGoroutine = 3 HeapAlloc = 188837736 NumGoroutine...可以看到 HeapAlloc 不是一直上升的，中间会有GC使其下降
MiB\n", mem.Alloc/1024/1024)fmt.Printf("TotalAlloc = %v MiB\n", mem.TotalAlloc/1024/1024)fmt.Printf("HeapAlloc...= %v MiB\n", mem.HeapAlloc/1024/1024)fmt.Printf("HeapSys = %v MiB\n", mem.HeapSys/1024/1024)data :=...MiB\n", mem.Alloc/1024/1024)fmt.Printf("TotalAlloc = %v MiB\n", mem.TotalAlloc/1024/1024)fmt.Printf("HeapAlloc...= %v MiB\n", mem.HeapAlloc/1024/1024)fmt.Printf("HeapSys = %v MiB\n", mem.HeapSys/1024/1024)data = nilruntime.GC...MiB\n", mem.Alloc/1024/1024)fmt.Printf("TotalAlloc = %v MiB\n", mem.TotalAlloc/1024/1024)fmt.Printf("HeapAlloc
int main(void) { HANDLE hHeap = GetProcessHeap(); LPVOID lpSrc; LPVOID lpDis; lpSrc = HeapAlloc...(hHeap,0,MEM_BLOCK_SIZE); lpDis = HeapAlloc(hHeap,0,MEM_BLOCK_SIZE); cout<<"HeapAlloc分配但不清零"<...<endl; ShowMemContent(lpDis,MEM_BLOCK_SIZE); ZeroMemory(lpDis,MEM_BLOCK_SIZE); cout<<"HeapAlloc
MiB\n", mem.Alloc/1024/1024)fmt.Printf("TotalAlloc = %v MiB\n", mem.TotalAlloc/1024/1024)fmt.Printf("HeapAlloc...= %v MiB\n", mem.HeapAlloc/1024/1024)fmt.Printf("HeapSys = %v MiB\n", mem.HeapSys/1024/1024)for i :=...MiB\n", mem.Alloc/1024/1024)fmt.Printf("TotalAlloc = %v MiB\n", mem.TotalAlloc/1024/1024)fmt.Printf("HeapAlloc...= %v MiB\n", mem.HeapAlloc/1024/1024)fmt.Printf("HeapSys = %v MiB\n", mem.HeapSys/1024/1024)}上面的代码先打印出内存分配前的内存信息
-gt 0 ] ; then # exit 2 # fi } Artifact提供了5种绕过技术和3种内存分配方式，默认用的pipe和HeapAlloc，可修改artifactkit_technique...这里我们将默认的pipe和HeapAlloc改为mailslot和HeapAlloc，template是模板，过不了任何防病毒软件。 如果仍然无法免杀时可以尝试更改为其他选项，然后再重新编译试试。.... # Options are: HeapAlloc, VirtualAlloc, and MapViewOfFile artifactkit_allocator="HeapAlloc" 如果想往生成的...0x04 免杀测试 1、Defender（HeapAlloc + mailslot） 2、360（VirtualAlloc+ mailslot） 3、火绒（MapViewOfFile+ peek） 0x05... 文末小结 经过以上测试最终选择用HeapAlloc + mailslot组合替代原生Artifact Kit，因为360和WDF只查杀Stager，而Stageless可同时过360+WDF+火绒的静态查杀
. // // This is the same as HeapAlloc (see below)..... // // TotalAlloc increases as heap objects are allocated, but // unlike Alloc and HeapAlloc...Specifically, HeapAlloc increases as heap // objects are allocated and decreases as the heap is swept...HeapAlloc uint64 // HeapSys is bytes of heap memory obtained from the OS. // // HeapSys measures...HeapReleased uint64 // HeapObjects is the number of allocated heap objects. // // Like HeapAlloc
堆内存管理的函数主要有HeapCreate、HeapAlloc、HeapFree、HeapRealloc、HeapDestroy、HeapWalk、HeapLock、HeapUnLock。...堆内存的分配与释放 堆内存的分配主要用到函数HeapAlloc，下面是这个函数的原型： LPVOID HeapAlloc( HANDLE hHeap, //堆句柄，表示在哪个堆上分配内存 DWORD...time(NULL)); HANDLE hHeap = GetProcessHeap(); int nCount = 1000; float *pfArray = (float *)HeapAlloc...); //在自定义堆中分配内存 hHeap = HeapCreate(HEAP_GENERATE_EXCEPTIONS, 0, 0); pfArray = (float *)HeapAlloc
IOCP，对于语言方面不缺少什么东西了，剩下的就是对操作系统和编程技巧的学习了，所以慢慢的开始写一些周边会涉及到的代码，也算是对 C/C++ 的复习，本文写的是一个 Windows 下多线程的例子，跟 Linux...0; i < MAX_THREADS; i++) { // 初始化线程参数，在堆上分配内存，用来给线程传参 pDataArray[i] = (PMYDATA)HeapAlloc
但，32位WINDOWS系统中，应使用新的内存分配函数HeapAlloc()以得到更好的支持，GlobalAlloc()还可以用，主要是为了兼容。...HeapAlloc apply memory from kernel32.dll GlobalAlloc obsolete malloc apply memory form C runtime...CoMemAlloc apply memory from kernel32.dll all are heap memory. recommend HeapAlloc for big block memory...allocation recommend stack memory space. recommend HeapAlloc for big block memory allocation recommend
池 程序动态申请内存空间，是要使用系统调用的，比如 Linux 系统上是调用 mmap 方法实现的。但对于大型系统服务来说，直接调用 mmap 申请内存，会有一定的代价。...runtime.MemStats 部分注释 1type MemStats struct { 2 // heap 分配出去的字节总数，和 HeapAlloc 值相同 3...HeapInuse 是处在使用中的所有 span 中的总字节数 38 // 只要一个 span 中有至少一个对象，那么就表示它被使用了 39 // HeapInuse - HeapAlloc...uint64 48 49 // NextGC is the target heap size of the next GC cycle. 50 // NextGC 表示当 HeapAlloc...增长到这个值时，会执行一次 GC 51 // 垃圾回收的目标是保持 HeapAlloc ≤ NextGC，每次 GC 结束 52 // 下次 GC 的目标，是根据当前可达数据和
实现代码 #include #include #include #define H_ALLOC(sz) HeapAlloc...(GetProcessHeap(),0,sz) #define H_CALLOC(sz) HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sz) #define...HeapFragValue ,sizeof(HeapFragValue) ) ; } //申请块信息数组 g_pMemBlockList = (PST_BLOCK_INFO)HeapAlloc
int main() { // 使用系统给每个进程提供的默认堆 HANDLE hHeap = GetProcessHeap(); float* fArray = (float*)HeapAlloc...fArray); // 创建一个私有堆 hHeap = HeapCreate(HEAP_GENERATE_EXCEPTIONS, 0, 0); fArray = (float*)HeapAlloc
Authorization 这些字段的值，据我的开发经验 c/c++ 对堆使用的函数 （1）一个是 malloc() ，动态分配，涉及到堆的分配 （2）一个是 HeapCreate() ，创建一个堆，紧接着用 HeapAlloc...我接着陷入了沉思： HeapCreate() 返回的句柄会不会是一个全局变量，而且在我附加到进程之前就已经进行初始化了，所以才没有断下来，那么我在 HeapAlloc() 下断不就可以了吗？...接着我把目标转向了 HeapAlloc()。...这里要注意一下在 OD 直接对 HeapAlloc() 下断是不行的，因为 kernel32.dll 中的 HeapAlloc() 函数执行时紧接着会调用 ntdll.dll 中的 RtlAllocateHeap
printf("create file error\n"); return GetLastError(); } char* pMem = (char*)HeapAlloc...sizeof(ST_EXT_OVERLAPPED)); pExOl->m_dwLen = dwLen * sizeof(TCHAR); pExOl->m_pData = HeapAlloc...error\n"); return GetLastError(); } ST_EXT_OVERLAPPED* pExOl = (ST_EXT_OVERLAPPED*)HeapAlloc...error\n"); return GetLastError(); } ST_EXT_OVERLAPPED* pExOl = (ST_EXT_OVERLAPPED*)HeapAlloc...< 2 * si.dwNumberOfProcessors; i++) { ST_EXT_OVERLAPPED* pExitMsg = (ST_EXT_OVERLAPPED*)HeapAlloc
文件等等，这些资源必须由系统级代码由RING3层进入到RING0层操作，并且返回一些标识供用户程序使用，一般调用某个函数陷入到内核，这样的函数叫做系统调用，而有些不直接陷入到内核，一般叫做系统API，linux...= GetLastError()) { goto __CLEAN_UP; } ptg = (TOKEN_GROUPS*)HeapAlloc...= SE_GROUP_LOGON_ID) { _tprintf(_T("此用户为当前登录的用户")); *ppsid = (PSID)HeapAlloc..._tprintf(_T("获取令牌失败\n")); return 0; } ptg = (TOKEN_PRIVILEGES*)HeapAlloc...pAdminSid; //将以上两个SID加入到ACL中 SetEntriesInAcl(2, ea, NULL, &pAcl); pSD = (PSECURITY_DESCRIPTOR) HeapAlloc
AF_INET, SOCK_STREAM, IPPROTO_IP); LPCLIENT_OVERLAPPED *pOverlappedArray = (LPCLIENT_OVERLAPPED *)HeapAlloc...HEAP_ZERO_MEMORY, sizeof(LPCLIENT_OVERLAPPED) * MAX_CONNECT_SOCKET); SOCKET *pSocketsArray = (SOCKET *)HeapAlloc...sockAddr.sin_port = htons(g_nPorts); LPCLIENT_OVERLAPPED lpoc = (LPCLIENT_OVERLAPPED)HeapAlloc...= AF_INET; sockAddr.sin_port = htons(g_nPorts); lpoc->pBuf = (char*)HeapAlloc...16); lpoc->lNetworkEvents = FD_ACCEPT; lpoc->pBuf = (char*)HeapAlloc
PFNArraySize = NumberOfPages * sizeof(ULONG_PTR); //2 准备物理页面的页表数组数据 aPFNs1 = (ULONG_PTR *)HeapAlloc...(GetProcessHeap(), 0, PFNArraySize); aPFNs2 = (ULONG_PTR *)HeapAlloc(GetProcessHeap(), 0, PFNArraySize
kernel上的函数，就是操作kernel上的page，需要先拷贝一份，这样不会影响其它进程使用kernel上的函数，这个操作就会发生一次copy on write错误 内存的分配API 1）利用 HeapAlloc...缺点：无法准确捕获这个时刻 方法二、看图，应该在1个半小时能出现，一直trace这个过程的VirtualAlloc和heapAlloc。...因xperf开启heapalloc 消耗太大，只能针对指定进程进行trace 2）复现过程： 安装同样的版本，发现本地也会出现VM从32M最后涨到50M的情况。...1024 -MinBuffers 128 -MaxBuffers 128 -stackwalkHeapAlloc+HeapRealloc 注：第二条是开启heapsession来trace 指定进程的heapalloc
TotalAlloc": 188992, "Sys": 70453248, "Lookups": 0, "Mallocs": 818, "Frees": 21, "HeapAlloc...就可以用命令通过之前的接口来监控内存等使用情况咯 jplot --url http://127.0.0.1:8080/debug/vars \ memstats.HeapSys+memstats.HeapAlloc
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