Author : KillFinger
Editor : venand
Press : ISD Indohack Security Development
C : 2009
#########################
Just read n no comment ...
1. Login dengan magic passwd:
[kill@localhost project]$ ssh -l deMilo localhost
deMilo@localhost's password:
Last login: Thu Oct 15 11:51:04 2003 from localhost
[root@localhost deMilo]#
2. Perhatikan baik2 bagian ini:
[root@localhost deMilo]# ps awux
root 10320 0.0 0.5 2960 1352 ? S 11:46 0:00 /usr/sbin/sshd
kill 11507 1.1 4.3 53120 11052 ? S 13:01 0:01 xmms
kill 11557 0.1 0.5 2984 1476 pts/1 S 13:02 0:00 ssh -l deMilo localhost
root 11558 0.0 0.5 5556 1536 ? S 13:02 0:00 sshd: deMilo [priv]
root 11561 0.0 0.6 5644 1644 ? S 13:02 0:00 sshd:
root 11879 0.4 0.5 2600 1512 pts/2 S 13:19 0:00 -bash
kill 12206 2.2 0.5 2976 1468 pts/3 S 13:31 0:00 ssh -l john localhost
root 12207 0.6 0.6 5556 1556 ? S 13:31 0:00 sshd: john [priv]
john 12209 0.0 0.6 5644 1656 ? S 13:31 0:00 [sshd]
john 12212 2.6 0.5 2600 1512 pts/5 S 13:31 0:00 -bash
kill 12722 0.0 0.5 2976 1468 pts/4 S 14:09 0:00 ssh -l root localhost
root 12723 0.0 0.6 5564 1580 ? S 14:09 0:00 sshd: root@pts/6
root 12728 0.0 0.5 2604 1516 pts/6 S 14:09 0:00 -bash
Penjelasan bagian atas;
-- Seorang user login dengan login_name "deMilo" menggunakan magic passwd, otomatis akan menjadi root:
root 11558 0.0 0.5 5556 1536 ? S 13:02 0:00 sshd: deMilo [priv]
root 11561 0.0 0.6 5644 1644 ? S 13:02 0:00 sshd:
root 11879 0.4 0.5 2600 1512 pts/2 S 13:19 0:00 -bash
-- Seorang user login dengan login_name "john" menggunakan passwd nya sendiri (valid passwd):
root 12207 0.6 0.6 5556 1556 ? S 13:31 0:00 sshd: john [priv]
john 12209 0.0 0.6 5644 1656 ? S 13:31 0:00 [sshd]
john 12212 2.6 0.5 2600 1512 pts/5 S 13:31 0:00 -bash
-- sytem sshd anda telah di infeksikan magic-passwd apabila tiap user yang login nampak bagian sbb:
root 11558 0.0 0.5 5556 1536 ? S 13:02 0:00 sshd: login_name [priv]
root 11561 0.0 0.6 5644 1644 ? S 13:02 0:00 sshd:
-- system yang normal (tidak terinfeksi):
root 12207 0.0 0.5 5556 1536 ? S 13:31 0:00 /usr/sbin/sshd
john 12209 0.0 0.6 5644 1656 ? S 13:31 0:00 [sshd]
<-- dengan tanda kurung apabila user
-- apabila root yang login dengan valid passwd:
root 12723 0.0 0.6 5564 1580 ? S 14:09 0:00 sshd: root@pts/6 <-- root dgn valid passwd akan tampak begini
root 12728 0.0 0.5 2604 1516 pts/6 S 14:09 0:00 -bash
3. Login dengan login_name "apache" menggunakan magic passwd:
[kill@localhost project]$ ssh -l apache localhost
apache@localhost's password:
-sh-2.05b# id
uid=0(root) gid=0(root) groups=0(root)
-sh-2.05b# pwd
/var/www
-sh-2.05b#
4. Terlihat tanda2nya:
[kill@localhost project]$ ps awux
kill 11861 1.2 4.1 53248 10720 ? S 13:18 0:01 xmms
kill 11931 0.5 0.5 2984 1476 pts/4 S 13:20 0:00 ssh -l apache localhost
root 11932 0.0 0.5 5556 1536 ? S 13:20 0:00 sshd: apache [priv]
root 11934 0.0 0.6 5644 1644 ? S 13:20 0:00 sshd:
root 11937 0.2 0.5 2600 1516 pts/2 S 13:20 0:00 -sh
kill 11967 0.0 0.2 2580 760 pts/1 R 13:20 0:00 ps awux
Kesimpulan:
Semua valid passwd yang login di log di suatu tempat apabila ada "sshd:". Atau dengan kata lain, apabila anda menemukan "sshd:" di command "ps awux" artinya system anda telah terinfeksi "magic_passwd". ExpLorE y0uR 0wN sYstEm. B-Creative!!!!
5. Penutup
Keep this Open-Source spirit up. This system is aLL about binary, if you are NOT 1 then you are 0. Knowledge is belong to the world, share it. Kritik, saran dan caci maki silahkan kirim ke KillFinger@linuxmail.org.
Online BUddiEs:
A_BlAcK_LisT, Acetosal, jhon angga, ryan_the, ucoxxx, AcCezZdENieD dan KIDS_KIDS. Special buat teman2 yang tidak bisa disebutkan satu persatu di #SecretColony, #HackingCentre, #Level9-Team @t DAL.Net.
Offline d00d:
t0t0 at jasakom (kapan nge-band lagi?), erich, d0nny, edd0, din0 at SecretColony Labs n Research Group, /bsp/mnt, y0gas.
Salam hangat buat crew #IndoHack, #Neoteker, #IndoLinux. <-- OpenSource Team
-----------------------
To follow the path;
look to the master,
follow the master,
walk with the master,
see through the master,
become the master.
-----------------------
Hacking is NOT instant.
Best Regs
0 komentar:
Posting Komentar