#reversing #Tips - The Assembly Language Debugger(ald)

================================================================
 The Assembly Language Debugger(ald)is a compiled C tool for
 debugging programsat the instruction level.
================================================================
  There is a webpage for ald at:
      http://ald.sourceforge.net
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How to install (REMnux)
=====================
wget http://downloads.sourceforge.net/project/ald/ald/ald-0.1.7/ald-0.1.7.tar.gz
tar -zxvf ald-0.1.7.tar.gz
apt-get install apt-file
apt-file search readline/readline.h
apt-get install libreadline6-dev
make
make check
make install

=====================
Usage (REMnux)
=====================
root@remnux:/home/xxx/malware/ald-0.1.7# ald -h
Assembly Language Debugger 0.1.7
Copyright (C) 2000-2004 Patrick Alken

Usage: ald [options] [filename]
  [filename]  : Path to executable file to debug

Options:
  -h          : Output this help screen
  -v          : Output version information

=====================
man page (REMnux)
=====================
ald(8)                                                                                                                                                       ald(8)
NAME
       ald - Assembly Language Debugger

SYNOPSIS
       ald [-v] [-h] [filename]

DESCRIPTION
The  Assembly  Language Debugger allows breakpoint debugging at the assembly level. It provides a means to examine and/or change a program's memory during
execution and stop the execution of a program for specified conditions.  There is also a built in disassembler which allows you to view the  program's  exe-
cutable code in human-readable form.

ALD reads commands interactively after it has been invoked.  Every command is documented completely in the help system, which can be accessed via the help
command. The most common commands used during the process of debugging are as follows:

break address
       Sets a breakpoint at address

r [arguments]
       Begin execution of program using [arguments]

c
       Continue execution of program (after it stopped due to a signal, breakpoint, etc)

n [num]
       Step [num] instructions, stepping over any subroutines

s [num]
       Step [num] instructions, stepping into any subroutines

d [options]
       Disassemble machine opcodes (see help dissassemble  for more information)

help [commands]
       Give detailed help, in general or for specified commands

quit
              Exit ALD

OPTIONS
         The following are command line options which may be passed to ald when it is invoked.

              [-v] - Output version information.

              [-h] - Output help information.

              [filename] - Name of file to be loaded for debugging.

AUTHOR
       Patrick Alken <pa59@cornell.edu>