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underground ddl forum / TUTORIALZ / Basic UNIX hacking Moderat de Untouchable
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Untouchable
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UNIX is probably the most commonly used operating system on Telenet, and is the easiest to hack since it doesn't record bad login attempts. You know you've found a UNIX system when it gives you a "Login" prompt, and then a "Password" prompt. To get in you should first try the default logins.(Listed below.) If these don't work try some of the passwords listed in Section M. If these don't work try to find backdoors. These are passwords that may have been put in to allow the programmer (or someone else who could be in a position to make a backdoor) to get access into the system. These are usually not known about by anyone but the individual who made it. Try doing some research on the programmer and other people who helped to make the system. And, if these don't work, just try guessing them. The Login (usually the account holders name) has 1-8 characters and the Password is 6-8 characters. Both can be either letters or numbers, or a combination of the two.
Once you get in, you should get a "$" prompt, or some other special character like it. You should only use lower case letters when hacking UNIX, this seems to be standard format. If you type "man [command]" at the prompt, it should list all of the commands for that system. Anyway, here are the default Logins and Passwords:


Login:Password:

rootroot
rootsystem
syssys
syssystem
daemondaemon
uucpuucp
ttytty
testtest
unixunix
unixtest
binbin
admadm
admadmin
adminadm
adminadmin
sysmansysman
sysmansys
sysmansystem
sysadminsysadmin
sysadminsys
sysadminsystem
sysadminadmin
sysadminadm
whowho
learnlearn
uuhostuuhost
guestguest
hosthost
nuucpnuucp
rjerje
gamesgames
gamesplayer
sysopsysop
rootsysop
demodemo


Once you are in, the first thing that you need to do is save the password file to your hard drive or to a disk. The password file contains the Logins and Passwords. The passwords are encoded. To get the UNIX password file, depending on what type of UNIX you are in, you can type one of the following things:

/etc/passwd
or
cat /etc/passwd

The first one is the standard command, but there are other commands as well, like the second one. Once you get the password file, it should look like this:


john:234abc56:9999:13:John Johnson:/home/dir/john:/bin/john


Broken down, this is what the above password file states:


Username: john
Encrypted Password: 234abc56
User Number: 9999
Group Number: 13
Other Information: John Johnson
Home Directory: /home/dir/john
Shell: /bin/john


If the password file does not show up under one of the above two commands, then it is probably shadowed.
The following definition of password shadowing was taken from the alt.2600 hack faq:
"Password shadowing is a security system where the encrypted password field is replaced with a special token and the encrypted password is stored in a seperate file which is not readable by normal system users."
If the password file is shadowed, you can find it in one of the following places, depending on the type of UNIX you are using:


UNIX System Type:Path:Token:

AIX 3/etc/security/passwd !
or/tcb/auth/files/<first letter of #
username>/<username>

A/UX 3.Os/tcb/files/auth/*

BSD4.3-Reno/etc/master.passwd *

ConvexOS 10/etc/shadpw *

Convex0S 11/etc/shadow *

DG/UX/etc/tcb/aa/user *

EP/IX/etc/shadow x

HP-UX/.secure/etc/passwd *

IRIX 5/etc/shadow x

Linux 1.1/etc/shadow *

OSF/1/etc/passwd[.dir|.pag] *

SCO UNIX #.2.x/tcb/auth/files/<first letter of *
username>/<username>

SunOS 4.1+c2/etc/security/passwd.adjunct ##

SunOS 5.0/etc/shadow

System V 4.0/etc/shadow x

System V 4.2/etc/security/* database

Ultrix 4/etc/auth[.dir|.pag] *

UNICOS /etc/udb *


Some passwords can only be used for a certain amount of time without having to be changed, this is called password aging. In the password file example below, the "C.a4" is the password aging data:


bob:123456,C.a4:6348:45:Bob Wilson:/home/dir/bob:/bin/bob


The characters in the password aging data stand for the following:


1. Maximum number of weeks a password can be used without changing.
2. Minimum number of weeks a password must be used before being changed.
3&4. Last time password was changed, in number of weeks since 1970.


The password aging data can be decoded using the chart below:

Character:Number:

.0
/1
02
13
24
35
46
57
68
79
810
911
A12
B13
C14
D15
E16
F17
G18
H19
I20
J21
K22
L23
M24
N25
O26
P27
Q28
R29
S30
T31
U32
V33
W34
X35
Y36
Z37
a38
b39
c40
d41
e42
f43
g44
h45
i46
j47
k48
l49
m50
n51
o52
p53
q54
r55
s56
t57
u58
v59
w60
x61
y62
z63


Now, explore the system freely, be careful, and have fun!


_______________________________________
rest in peace...

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