From dfa1628ac35efc08e4ec5ac359adbf214632592b Mon Sep 17 00:00:00 2001
From: Kenzy Carey <33557606+KenzyCarey@users.noreply.github.com>
Date: Fri, 17 Nov 2017 14:42:52 -0800
Subject: [PATCH] Add files via upload

---
 client/scripts/brutesim.lua | 229 ++++++++++++++++++++++++++++++++++++
 1 file changed, 229 insertions(+)
 create mode 100644 client/scripts/brutesim.lua

diff --git a/client/scripts/brutesim.lua b/client/scripts/brutesim.lua
new file mode 100644
index 00000000..326966c6
--- /dev/null
+++ b/client/scripts/brutesim.lua
@@ -0,0 +1,229 @@
+desc = [[
+
+  .-----------------------------------------------------------------.
+ /  .-.                                                         .-.  \
+|  /   \                    BruteSim                           /   \  |
+| |\_.  |     (bruteforce simulation for multiple tags)       |    /| |
+|\|  | /|                      by                             |\  | |/|
+| `---' |                 Kenzy Carey                         | `---' |
+|       |                                                     |       |
+|       |-----------------------------------------------------|       |
+\       |                                                     |       /
+ \     /                                                       \     /
+  `---'                                                         `---'
+]]
+author = [[ Kenzy Carey ]]
+usage = [[
+
+USAGE:
+script run brutesim -r rfid_tag -f facility_code -b base_card_number -c count -t timeout -d direction
+option		argument		description
+------		--------		-----------
+-r      	*see below		RFID Tag: the RFID tag to emulate
+-f		0-999			Facility Code: The facility code (dfx: country id, 14a: type)
+-b		0-65535			Base Card Number: base card number to start from
+-c		1-65536			Count: number of cards to try
+-t		.0-99999, pause		Timeout: timeout between cards (use the word 'pause' to wait for user input)
+-d		up, down		Direction: direction to move through card numbers
+-h					Show this
+
+*SUPPORTED TAGS: pyramid, awid, fdx, jablotron, noralsy, presco, visa2000, 14a, hid
+
+EXAMPLE: 
+script run brutesim -r pyramid -f 10 -b 1000 -c 10 -t 1 -d down
+(the above example would bruteforce pyramid tags, starting at 10:1000, ending at 10:991, and waiting 1 second between each card)
+]]
+
+-- I wrote this as i was doing a PACS audit. This is far from complete, but is easily expandable.
+-- The idea was based on proxbrute, but i needed more options, and support for different readers.
+-- I dont know LUA, so I used Brian Redbeards lf_bulk_program.lua script as a starting point, sorry if its kludgy.
+	
+getopt = require('getopt')							-- Used to get get command line arguments
+bit32 = require('bit32')							-- Used to convert FC/CN to hex
+
+local function isempty(s)							-- Check if a string is empty
+	return s == nil or s == ''
+end
+
+local function main(args)
+
+	print("")								-- Print a blank line to make things look cleaner
+
+	for o, a in getopt.getopt(args, 'r:f:b:c:t:d:h') do			-- Populate command like arguments
+		if o == 'r' then rfidtag = a end
+		if o == 'f' then facility = a end
+		if o == 'b' then baseid = a end
+		if o == 'c' then count = a end
+		if o == 't' then timeout = a end
+		if o == 'd' then direction = a end
+		if o == 'h' then return print(usage) end
+	end
+
+	if isempty(rfidtag) then 						-- Check to see if -r argument was passed 
+		print("You must supply the flag -r (rfid tag)")
+		print(usage)
+		return
+	end
+										-- Check what RFID Tag we are using
+	if rfidtag == 'pyramid' then						-- For eaach RFID Tag:
+		consolecommand = 'lf pyramid sim'				-- Set the console command
+		rfidtagname = 'Farpointe/Pyramid'				-- Set the display name
+		facilityrequired = 1						-- Set if FC is required
+	elseif rfidtag == 'awid' then
+		consolecommand = 'lf awid sim'
+		rfidtagname = 'AWID'
+		facilityrequired = 1
+	elseif rfidtag == 'fdx' then						-- I'm not sure why you would need to bruteforce this ¯\_(ツ)_/¯ 
+		consolecommand = 'lf fdx sim'
+		rfidtagname = 'FDX-B'
+		facilityrequired = 1
+	elseif rfidtag == 'jablotron' then
+		consolecommand = 'lf jablotron sim'
+		rfidtagname = 'Jablotron'
+		facilityrequired = 0
+	elseif rfidtag == 'noralsy' then
+		consolecommand = 'lf noralsy sim'
+		rfidtagname = 'Noralsy'
+		facilityrequired = 0
+	elseif rfidtag == 'presco' then
+		consolecommand = 'lf presco sim d'
+		rfidtagname = 'Presco'
+		facilityrequired = 0
+	elseif rfidtag == 'visa2000' then
+		consolecommand = 'lf visa2000 sim'
+		rfidtagname = 'Visa2000'
+		facilityrequired = 0
+	elseif rfidtag == '14a' then
+		consolecommand = 'hf 14a sim'
+		if facility == "1" then rfidtagname = 'MIFARE Classic'		-- Here we use the -f option to read the 14a type instead of the facility code
+		elseif facility == "2" then rfidtagname = 'MIFARE Ultralight'
+		elseif facility == "3" then rfidtagname = 'MIFARE Desfire'
+		elseif facility == "4" then rfidtagname = 'ISO/IEC 14443-4'
+		elseif facility == "5" then rfidtagname = 'MIFARE Tnp3xxx'
+		else 
+			print("Invalid 14a type (-f) supplied. Must be 1-5")
+			print(usage)
+			return
+		end
+		facilityrequired = 0						-- Disable the FC required check, as we used it for type instead of FC
+	elseif rfidtag == 'hid' then
+		consolecommand = 'lf hid sim'
+		rfidtagname = 'HID'
+		facilityrequired = 1
+	else									-- Display error and exit out if bad RFID tag was supplied
+		print("Invalid rfid tag (-r) supplied")
+		print(usage)
+		return
+	end
+	
+	if isempty(baseid) then 						-- Display error and exit out if no starting id is set
+		print("You must supply the flag -b (base id)")
+		print(usage)
+		return
+	end
+
+	if isempty(count) then 							-- Display error and exit out of no count is set
+		print("You must supply the flag -c (count)")
+		print(usage)
+		return
+	end
+	
+	if facilityrequired == 1 then						-- If FC is required
+		facilitymessage = " - Facility Code: "				-- Add FC to status message
+		if isempty(facility) then 					-- If FC was left blank, display warning and set FC to 0 
+			print("Using 0 for the facility code as -f was not supplied")
+			facility = 0 						
+		end
+	else									-- If FC is not required
+		facility = ""							-- Clear FC
+		facilitymessage = ""						-- Remove FC from status message
+	end
+	
+	if isempty(timeout) then 						-- If timeout was not supplied, show warning and set timeout to 0
+		print("Using 0 for the timeout as -t was not supplied")
+		timeout = 0 
+	end
+	
+	if isempty(direction) then 						-- If direction was not supplied, show warning and set direction to down
+		print("Using down for direction as -d was not supplied")
+		direction = 'down' 
+	end
+	
+	if tonumber(count) < 1 then
+		print("Count -c must be set to 1 or higher")
+		return
+	else
+		count = count -1 						-- Make our count accurate by removing 1, because math
+	end							
+	
+	if direction == 'down' then 						-- If counting down, set up our for loop to count down
+		endid = baseid - count
+		fordirection = -1
+	elseif direction == 'up' then						-- If counting up, set our for loop to count up
+		endid = baseid + count
+		fordirection = 1
+	else									-- If invalid direction was set, show warning and set up our for loop to count down
+		print("Invalid direction (-d) supplied, using down")
+		endid = baseid - count
+		fordirection = -1
+	end
+	
+										-- The code below was blatantly stolen from Brian Redbeard's lf_bulk_program.lua script		
+	function toBits(num,bits)
+		bits = bits or math.max(1, select(2, math.frexp(num)))
+		local t = {}
+		for b = bits, 1, -1 do
+			t[b] = math.fmod(num, 2)
+			num = math.floor((num - t[b]) / 2)
+		end
+		return table.concat(t)
+	end
+
+	local function evenparity(s)
+		local _, count = string.gsub(s, "1", "")
+		local p = count % 2
+		if (p == 0) then
+			return(false)
+		else
+			return(true)
+		end
+	end
+	
+	local function isempty(s)
+		return s == nil or s == ''
+	end
+
+	local function cardHex(i,f)
+		fac = bit32.lshift(f,16)
+		id = bit32.bor(i, fac)
+		stream=toBits(id,26)
+		high = evenparity(string.sub(stream,0,12)) and 1 or 0
+		low = not evenparity(string.sub(stream,13)) and 1 or 0
+		bits = bit32.bor(bit32.lshift(id,1), low)
+		bits = bit32.bor(bits, bit32.lshift(high,25))
+		preamble = bit32.bor(0, bit32.lshift(1,5))
+		bits = bit32.bor(bits, bit32.lshift(1,26))
+		return ("%04x%08x"):format(preamble,bits)
+	end
+											-- End stolen code 
+	
+	
+	print("")									-- Display status message
+	print("BruteForcing "..rfidtagname..""..facilitymessage..""..facility.." - CardNumber Start: "..baseid.." - CardNumber End: "..endid.." - TimeOut: "..timeout)
+	print("")
+	for cardnum = baseid,endid,fordirection do 					-- Loop through for each count (-c)
+		if rfidtag == 'hid' then cardnum = cardHex(cardnum, facility) end	-- If rfid tag is set to HID, convert card to HEX using the stolen code above 
+		core.console(consolecommand..' '..facility..' '..cardnum)		-- Send command to proxmark
+		if timeout == 'pause' then						-- If timeout is set to pause, wait for user input
+			print("Press enter to continue ...")
+			io.read()
+		else									-- Otherwise sleep for timeout duration
+			os.execute("sleep "..timeout.."")
+		end
+	end
+	core.console('hw ping')								-- Ping the proxmark to stop emulation and see if its still responding
+	
+end											-- Go bye bye
+
+
+main(args)										-- Do the thing
-- 
2.39.2