Bueno, hice esto en mi Linux...
Código:
juanra@Juanra:~$ sudo su
[sudo] password for juanra:
root@Juanra:/home/juanra# cat /var/log/faillog
tty1��CMtty1��AM
root@Juanra:/home/juanra# cat /var/log/faillog | hexdump -C
00000000 00 00 00 00 74 74 79 31 00 00 00 00 00 00 00 00 |....tty1........|
00000010 d8 f4 43 4d 00 00 00 00 00 00 00 00 00 00 00 00 |..CM............|
00000020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00005dc0 00 00 00 00 74 74 79 31 00 00 00 00 00 00 00 00 |....tty1........|
00005dd0 9a b6 41 4d 00 00 00 00 |..AM....|
00005dd8
root@Juanra:/home/juanra#
Código:
216 244 67 77
154 182 65 77
-------------
d8 f4 43 4d
9a b6 41 4d