Deteksi rootkit dengan rkhunter
Pastinya sangat kesal klo kita mempunyai server sendiri lalu di selundupkan (ditanamkan) rootkit oleh orang yang gk bertanggung jawab, tau apa tuh maunya orang itu ( pites aja klo ketemu ). Sebagai admin sebuah server tentunya kita harus rajin untuk mengecek server kita apakah ada mahluk yang tak di kenal di dalamnya. Kita dapat mengecek keberadaan mahluk yang gk di inginkan itu dengan bantuan tools di linux khususnya bisa menggunakan Chkrootkit atau dengan rkhunter, tetapi yang ingin saya sedikit share dengan menggunakan bantuan rkhunter (pemburu rootkit). Oke dah tanpa banyak basa basi lagi langusng saya sajikan saja y hehehehe...............
$sudo apt-get install rkhunter
setelah proses installasi selesai kita bisa langsung update data base supaya rkhunter tersebut mempunyai data yang terbaru.
Setelah mengupdate barulah kita melewati tahap yang paling panjang yaitu pengecekannya, perintahnya adalah
Diatas adalah hasil pemeriksaan system dengan rkhunter. Terdeteksi beberapa hal yang kemudian mentriger alarm “warning”.
Tetapi anda jangan langsung panik. Kadang peringatan tersebut adalah false positif dimana mungkin saja kita memang menginginkan fungsi tersebut untuk aktif.
Contoh diatas adalah SSH root access allowed yang diberi peringatan adalah atas sepengetahuan saya (karena ada keperluan dengan ssh root access).
Jadi sekarang rajin-rajin lah scan supaya anda tidak kecolongan kalau ada orang yang iseng-iseng berusaha menanam sesuatu di server anda
~Just Share~
$sudo apt-get install rkhunter
setelah proses installasi selesai kita bisa langsung update data base supaya rkhunter tersebut mempunyai data yang terbaru.
$sudo rkhunter --update
[ Rootkit Hunter version 1.3.6 ]
Checking rkhunter data files...
Checking file mirrors.dat [ No update ]
Checking file programs_bad.dat [ No update ]
Checking file backdoorports.dat [ No update ]
Checking file suspscan.dat [ No update ]
Checking file i18n/cn [ No update ]
Checking file i18n/de [ No update ]
Checking file i18n/en [ No update ]
Checking file i18n/zh [ No update ]
Checking file i18n/zh.utf8 [ No update ]
Setelah mengupdate barulah kita melewati tahap yang paling panjang yaitu pengecekannya, perintahnya adalah
savoy@savoy-laptop:~$ sudo rkhunter -c
[ Rootkit Hunter version 1.3.6 ]
Checking system commands...
Performing 'strings' command checks
Checking 'strings' command [ OK ]
Performing 'shared libraries' checks
Checking for preloading variables [ None found ]
Checking for preloaded libraries [ None found ]
Checking LD_LIBRARY_PATH variable [ Not found ]
Performing file properties checks
Checking for prerequisites [ OK ]
/bin/bash [ OK ]
/bin/cat [ OK ]
/bin/chmod [ OK ]
/bin/chown [ OK ]
/bin/cp [ OK ]
/bin/date [ OK ]
/bin/df [ OK ]
/bin/dmesg [ OK ]
/bin/echo [ OK ]
/bin/ed [ OK ]
/bin/egrep [ OK ]
/bin/fgrep [ OK ]
/bin/fuser [ OK ]
/bin/grep [ OK ]
/bin/ip [ OK ]
/bin/kill [ OK ]
/bin/less [ OK ]
/bin/login [ OK ]
/bin/ls [ OK ]
/bin/lsmod [ OK ]
/bin/mktemp [ OK ]
/bin/more [ OK ]
/bin/mount [ OK ]
/bin/mv [ OK ]
/bin/netstat [ OK ]
/bin/ps [ OK ]
/bin/pwd [ OK ]
/bin/readlink [ OK ]
/bin/sed [ OK ]
/bin/sh [ OK ]
/bin/su [ OK ]
/bin/touch [ OK ]
/bin/uname [ OK ]
/bin/which [ OK ]
/bin/dash [ OK ]
/usr/bin/awk [ OK ]
/usr/bin/basename [ OK ]
/usr/bin/chattr [ OK ]
/usr/bin/curl [ OK ]
/usr/bin/cut [ OK ]
/usr/bin/diff [ OK ]
/usr/bin/dirname [ OK ]
/usr/bin/dpkg [ OK ]
/usr/bin/dpkg-query [ OK ]
/usr/bin/du [ OK ]
/usr/bin/elinks [ OK ]
/usr/bin/env [ OK ]
/usr/bin/file [ OK ]
/usr/bin/find [ OK ]
/usr/bin/GET [ OK ]
/usr/bin/groups [ OK ]
/usr/bin/head [ OK ]
/usr/bin/id [ OK ]
/usr/bin/killall [ OK ]
/usr/bin/last [ OK ]
/usr/bin/lastlog [ OK ]
/usr/bin/ldd [ OK ]
/usr/bin/less [ OK ]
/usr/bin/locate [ OK ]
/usr/bin/logger [ OK ]
/usr/bin/lsattr [ OK ]
/usr/bin/lsof [ OK ]
/usr/bin/mail [ OK ]
/usr/bin/md5sum [ OK ]
/usr/bin/mlocate [ OK ]
/usr/bin/newgrp [ OK ]
/usr/bin/passwd [ OK ]
/usr/bin/perl [ OK ]
/usr/bin/pgrep [ OK ]
/usr/bin/pstree [ OK ]
/usr/bin/rkhunter [ OK ]
/usr/bin/runcon [ OK ]
/usr/bin/sha1sum [ OK ]
/usr/bin/sha224sum [ OK ]
/usr/bin/sha256sum [ OK ]
/usr/bin/sha384sum [ OK ]
/usr/bin/sha512sum [ OK ]
/usr/bin/size [ OK ]
/usr/bin/sort [ OK ]
/usr/bin/stat [ OK ]
/usr/bin/strace [ OK ]
/usr/bin/strings [ OK ]
/usr/bin/sudo [ OK ]
/usr/bin/tail [ OK ]
/usr/bin/test [ OK ]
/usr/bin/top [ OK ]
/usr/bin/touch [ OK ]
/usr/bin/tr [ OK ]
/usr/bin/uniq [ OK ]
/usr/bin/users [ OK ]
/usr/bin/vmstat [ OK ]
/usr/bin/w [ OK ]
/usr/bin/watch [ OK ]
/usr/bin/wc [ OK ]
/usr/bin/wget [ OK ]
/usr/bin/whatis [ OK ]
/usr/bin/whereis [ OK ]
/usr/bin/which [ OK ]
/usr/bin/who [ OK ]
/usr/bin/whoami [ OK ]
/usr/bin/gawk [ OK ]
/usr/bin/lwp-request [ OK ]
/usr/bin/bsd-mailx [ OK ]
/usr/bin/w.procps [ OK ]
/sbin/depmod [ OK ]
/sbin/ifconfig [ OK ]
/sbin/ifdown [ OK ]
/sbin/ifup [ OK ]
/sbin/init [ OK ]
/sbin/insmod [ OK ]
/sbin/ip [ OK ]
/sbin/lsmod [ OK ]
/sbin/modinfo [ OK ]
/sbin/modprobe [ OK ]
/sbin/rmmod [ OK ]
/sbin/runlevel [ OK ]
/sbin/sulogin [ OK ]
/sbin/sysctl [ OK ]
/usr/sbin/adduser [ OK ]
/usr/sbin/chroot [ OK ]
/usr/sbin/cron [ OK ]
/usr/sbin/groupadd [ OK ]
/usr/sbin/groupdel [ OK ]
/usr/sbin/groupmod [ OK ]
/usr/sbin/grpck [ OK ]
/usr/sbin/inetd [ OK ]
/usr/sbin/nologin [ OK ]
/usr/sbin/pwck [ OK ]
/usr/sbin/rsyslogd [ OK ]
/usr/sbin/tcpd [ OK ]
/usr/sbin/useradd [ OK ]
/usr/sbin/userdel [ OK ]
/usr/sbin/usermod [ OK ]
/usr/sbin/vipw [ OK ]
/usr/sbin/unhide-linux26 [ OK ]
[Pressto continue]
Checking for rootkits...
Performing check of known rootkit files and directories
55808 Trojan - Variant A [ Not found ]
ADM Worm [ Not found ]
AjaKit Rootkit [ Not found ]
Adore Rootkit [ Not found ]
aPa Kit [ Not found ]
Apache Worm [ Not found ]
Ambient (ark) Rootkit [ Not found ]
Balaur Rootkit [ Not found ]
BeastKit Rootkit [ Not found ]
beX2 Rootkit [ Not found ]
BOBKit Rootkit [ Not found ]
cb Rootkit [ Not found ]
CiNIK Worm (Slapper.B variant) [ Not found ]
Danny-Boy's Abuse Kit [ Not found ]
Devil RootKit [ Not found ]
Dica-Kit Rootkit [ Not found ]
Dreams Rootkit [ Not found ]
Duarawkz Rootkit [ Not found ]
Enye LKM [ Not found ]
Flea Linux Rootkit [ Not found ]
FreeBSD Rootkit [ Not found ]
Fu Rootkit [ Not found ]
Fuck`it Rootkit [ Not found ]
GasKit Rootkit [ Not found ]
Heroin LKM [ Not found ]
HjC Kit [ Not found ]
ignoKit Rootkit [ Not found ]
iLLogiC Rootkit [ Not found ]
IntoXonia-NG Rootkit [ Not found ]
Irix Rootkit [ Not found ]
Kitko Rootkit [ Not found ]
Knark Rootkit [ Not found ]
ld-linuxv.so Rootkit [ Not found ]
Li0n Worm [ Not found ]
Lockit / LJK2 Rootkit [ Not found ]
Mood-NT Rootkit [ Not found ]
MRK Rootkit [ Not found ]
Ni0 Rootkit [ Not found ]
Ohhara Rootkit [ Not found ]
Optic Kit (Tux) Worm [ Not found ]
Oz Rootkit [ Not found ]
Phalanx Rootkit [ Not found ]
Phalanx2 Rootkit [ Not found ]
Phalanx2 Rootkit (extended tests) [ Not found ]
Portacelo Rootkit [ Not found ]
R3dstorm Toolkit [ Not found ]
RH-Sharpe's Rootkit [ Not found ]
RSHA's Rootkit [ Not found ]
Scalper Worm [ Not found ]
Sebek LKM [ Not found ]
Shutdown Rootkit [ Not found ]
SHV4 Rootkit [ Not found ]
SHV5 Rootkit [ Not found ]
Sin Rootkit [ Not found ]
Slapper Worm [ Not found ]
Sneakin Rootkit [ Not found ]
'Spanish' Rootkit [ Not found ]
Suckit Rootkit [ Not found ]
SunOS Rootkit [ Not found ]
SunOS / NSDAP Rootkit [ Not found ]
Superkit Rootkit [ Not found ]
TBD (Telnet BackDoor) [ Not found ]
TeLeKiT Rootkit [ Not found ]
T0rn Rootkit [ Not found ]
trNkit Rootkit [ Not found ]
Trojanit Kit [ Not found ]
Tuxtendo Rootkit [ Not found ]
URK Rootkit [ Not found ]
Vampire Rootkit [ Not found ]
VcKit Rootkit [ Not found ]
Volc Rootkit [ Not found ]
Xzibit Rootkit [ Not found ]
X-Org SunOS Rootkit [ Not found ]
zaRwT.KiT Rootkit [ Not found ]
ZK Rootkit [ Not found ]
Performing additional rootkit checks
Suckit Rookit additional checks [ OK ]
Checking for possible rootkit files and directories [ None found ]
Checking for possible rootkit strings [ None found ]
Performing malware checks
Checking running processes for suspicious files [ None found ]
Checking for login backdoors [ None found ]
Checking for suspicious directories [ None found ]
Checking for sniffer log files [ None found ]
Performing trojan specific checks
Checking for enabled inetd services [ Warning ]
Checking for Apache backdoor [ Not found ]
Performing Linux specific checks
Checking loaded kernel modules [ OK ]
Checking kernel module names [ OK ]
[Pressto continue]
Checking the network...
Performing check for backdoor ports
Checking for TCP port 1524 [ Not found ]
Checking for TCP port 1984 [ Not found ]
Checking for UDP port 2001 [ Not found ]
Checking for TCP port 2006 [ Not found ]
Checking for TCP port 2128 [ Not found ]
Checking for TCP port 6666 [ Not found ]
Checking for TCP port 6667 [ Not found ]
Checking for TCP port 6668 [ Not found ]
Checking for TCP port 6669 [ Not found ]
Checking for TCP port 7000 [ Not found ]
Checking for TCP port 13000 [ Not found ]
Checking for TCP port 14856 [ Not found ]
Checking for TCP port 25000 [ Not found ]
Checking for TCP port 29812 [ Not found ]
Checking for TCP port 31337 [ Not found ]
Checking for TCP port 33369 [ Not found ]
Checking for TCP port 47107 [ Not found ]
Checking for TCP port 47018 [ Not found ]
Checking for TCP port 60922 [ Not found ]
Checking for TCP port 62883 [ Not found ]
Checking for TCP port 65535 [ Not found ]
Performing checks on the network interfaces
Checking for promiscuous interfaces [ None found ]
[Pressto continue]
Checking the local host...
Performing system boot checks
Checking for local host name [ Found ]
Checking for system startup files [ Found ]
Checking system startup files for malware [ None found ]
Performing group and account checks
Checking for passwd file [ Found ]
Checking for root equivalent (UID 0) accounts [ None found ]
Checking for passwordless accounts [ None found ]
Checking for passwd file changes [ None found ]
Checking for group file changes [ None found ]
Checking root account shell history files [ OK ]
Performing system configuration file checks
Checking for SSH configuration file [ Found ]
Checking if SSH root access is allowed [ Warning ]
Checking if SSH protocol v1 is allowed [ Not allowed ]
Checking for running syslog daemon [ Found ]
Checking for syslog configuration file [ Found ]
Checking if syslog remote logging is allowed [ Not allowed ]
Performing filesystem checks
Checking /dev for suspicious file types [ Warning ]
Checking for hidden files and directories [ Warning ]
[Pressto continue]
System checks summary
=====================
File properties checks...
Files checked: 135
Suspect files: 0
Rootkit checks...
Rootkits checked : 245
Possible rootkits: 0
Applications checks...
All checks skipped
The system checks took: 2 minutes and 11 seconds
All results have been written to the log file (/var/log/rkhunter.log)
One or more warnings have been found while checking the system.
Please check the log file (/var/log/rkhunter.log)
Diatas adalah hasil pemeriksaan system dengan rkhunter. Terdeteksi beberapa hal yang kemudian mentriger alarm “warning”.
Tetapi anda jangan langsung panik. Kadang peringatan tersebut adalah false positif dimana mungkin saja kita memang menginginkan fungsi tersebut untuk aktif.
Contoh diatas adalah SSH root access allowed yang diberi peringatan adalah atas sepengetahuan saya (karena ada keperluan dengan ssh root access).
Jadi sekarang rajin-rajin lah scan supaya anda tidak kecolongan kalau ada orang yang iseng-iseng berusaha menanam sesuatu di server anda
~Just Share~
Deteksi rootkit dengan rkhunter
![Deteksi rootkit dengan rkhunter]()
Reviewed by Unknown
on
3:17 PM
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