Add timestamping to downloaded files

Author: wvu

lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb

@@ -195,7 +195,7 @@ def Dir.unlink(path)
   # Downloads the contents of a remote directory a
   # local directory, optionally in a recursive fashion.
   #
-  def Dir.download(dst, src, recursive = false, force = true, glob = nil, &stat)
+  def Dir.download(dst, src, recursive = false, force = true, glob = nil, timestamp = nil, &stat)
 
     self.entries(src, glob).each { |src_sub|
       dst_item = dst + ::File::SEPARATOR + client.unicode_filter_encode(src_sub)
@@ -208,7 +208,12 @@ def Dir.download(dst, src, recursive = false, force = true, glob = nil, &stat)
       src_stat = client.fs.filestat.new(src_item)
 
       if (src_stat.file?)
+        if timestamp
+          dst_item << timestamp
+        end
+
         stat.call('downloading', src_item, dst_item) if (stat)
+
         begin
           result = client.fs.file.download_file(dst_item, src_item)
           stat.call(result, src_item, dst_item) if (stat)
@@ -231,7 +236,7 @@ def Dir.download(dst, src, recursive = false, force = true, glob = nil, &stat)
         end
 
         stat.call('mirroring', src_item, dst_item) if (stat)
-        download(dst_item, src_item, recursive, force, glob, &stat)
+        download(dst_item, src_item, recursive, force, glob, timestamp, &stat)
         stat.call('mirrored', src_item, dst_item) if (stat)
       end
     }

lib/rex/post/meterpreter/extensions/stdapi/fs/file.rb

@@ -280,14 +280,19 @@ def File.is_glob?(name)
   # If a block is given, it will be called before each file is downloaded and
   # again when each download is complete.
   #
-  def File.download(dest, *src_files, &stat)
-    src_files.each { |src|
+  def File.download(dest, src_files, timestamp = nil, &stat)
+    [*src_files].each { |src|
       if (::File.basename(dest) != File.basename(src))
         # The destination when downloading is a local file so use this
         # system's separator
         dest += ::File::SEPARATOR + File.basename(src)
       end
 
+      # XXX: dest can be the same object as src, so we use += instead of <<
+      if timestamp
+        dest += timestamp
+      end
+
       stat.call('downloading', src, dest) if (stat)
       result = download_file(dest, src)
       stat.call(result, src, dest) if (stat)

lib/rex/post/meterpreter/ui/console/command_dispatcher/stdapi/fs.rb

@@ -24,7 +24,8 @@ class Console::CommandDispatcher::Stdapi::Fs
   #
   @@download_opts = Rex::Parser::Arguments.new(
     "-h" => [ false, "Help banner." ],
-    "-r" => [ false, "Download recursively." ])
+    "-r" => [ false, "Download recursively." ],
+    "-t" => [ false, "Timestamp downloaded files." ])
   #
   # Options for the upload command.
   #
@@ -332,6 +333,7 @@ def cmd_download(*args)
     end
 
     recursive = false
+    timestamp = false
     src_items = []
     last      = nil
     dest      = nil
@@ -340,6 +342,8 @@ def cmd_download(*args)
       case opt
       when "-r"
         recursive = true
+      when "-t"
+        timestamp = true
       when nil
         src_items << last if (last)
         last = val
@@ -367,6 +371,10 @@ def cmd_download(*args)
       dest = ::File.dirname(dest)
     end
 
+    if timestamp
+      ts = '_' + Time.now.iso8601
+    end
+
     # Go through each source item and download them
     src_items.each { |src|
       glob = nil
@@ -389,8 +397,7 @@ def cmd_download(*args)
             src_path = file['path'] + client.fs.file.separator + file['name']
             dest_path = src_path.tr(src_separator, ::File::SEPARATOR)
 
-            client.fs.file.download(dest_path, src_path) do |step, src, dst|
-              puts step
+            client.fs.file.download(dest_path, src_path, ts) do |step, src, dst|
               print_status("#{step.ljust(11)}: #{src} -> #{dst}")
               client.framework.events.on_session_download(client, src, dest) if msf_loaded?
             end
@@ -404,12 +411,12 @@ def cmd_download(*args)
         # Perform direct matching
         stat = client.fs.file.stat(src)
         if (stat.directory?)
-          client.fs.dir.download(dest, src, recursive, true, glob) do |step, src, dst|
+          client.fs.dir.download(dest, src, recursive, true, glob, ts) do |step, src, dst|
             print_status("#{step.ljust(11)}: #{src} -> #{dst}")
             client.framework.events.on_session_download(client, src, dest) if msf_loaded?
           end
         elsif (stat.file?)
-          client.fs.file.download(dest, src) do |step, src, dst|
+          client.fs.file.download(dest, src, ts) do |step, src, dst|
             print_status("#{step.ljust(11)}: #{src} -> #{dst}")
             client.framework.events.on_session_download(client, src, dest) if msf_loaded?
           end