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Improve building client - append shellcode to file end

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shaun
2025-12-30 18:01:07 +01:00
committed by yuanyuanxiang
parent 2b4f061f82
commit 71c7c99f62
7 changed files with 201 additions and 90 deletions
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69
server/2015Remote/2015RemoteDlg.cpp
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@@ -3154,32 +3154,61 @@ char* ReadFileToBuffer(const std::string &path, size_t& outSize)
//////////////////////////////////////////////////////////////////////////
// UPX
BOOL WriteBinaryToFile(const char* path, const char* data, ULONGLONG size)
BOOL WriteBinaryToFile(const char* path, const char* data, ULONGLONG size, LONGLONG offset)
{
// 打开文件，以二进制模式写入
std::string filePath = path;
std::ofstream outFile(filePath, std::ios::binary);
std::string filePath = path;
std::fstream outFile;
if (!outFile) {
Mprintf("Failed to open or create the file: %s.\n", filePath.c_str());
return FALSE;
if (offset == 0) {
// offset=0 时截断文件，等同覆盖写入
outFile.open(filePath, std::ios::binary | std::ios::out | std::ios::trunc);
}
else if (offset == -1) {
// offset=-1 时追加写入
outFile.open(filePath, std::ios::binary | std::ios::out | std::ios::app);
}
else {
// 非0偏移，保留原内容，定位写入
outFile.open(filePath, std::ios::binary | std::ios::in | std::ios::out);
// 文件不存在时创建
if (!outFile) {
outFile.open(filePath, std::ios::binary | std::ios::out);
}
}
if (!outFile) {
Mprintf("Failed to open or create the file: %s.\n", filePath.c_str());
return FALSE;
}
// 追加模式不需要 seekp, 其他情况定位到指定位置
if (offset != -1) {
// 定位到指定位置
outFile.seekp(offset, std::ios::beg);
// 验证 seekp 是否成功
if (outFile.fail()) {
Mprintf("Failed to seek to offset %llu.\n", offset);
outFile.close();
return FALSE;
}
}
// 写入二进制数据
outFile.write(data, size);
// 写入二进制数据
outFile.write(data, size);
if (outFile.good()) {
Mprintf("Binary data written successfully to %s.\n", filePath.c_str());
} else {
Mprintf("Failed to write data to file.\n");
outFile.close();
return FALSE;
}
if (outFile.good()) {
Mprintf("Binary data written successfully to %s.\n", filePath.c_str());
}
else {
Mprintf("Failed to write data to file.\n");
outFile.close();
return FALSE;
}
// 关闭文件
outFile.close();
return TRUE;
outFile.close();
return TRUE;
}
int run_cmd(std::string cmdLine)