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jada
Linux Guru
Joined: 13 May 2025
Posts: 3064
Location: Sun City, CA 92585
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 Posted: Fri Mar 14, 2025 4:10 pm Post subject: Infekted, Hijacked, Botnet? |
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I have a problem! Sinze few days, with every computer how I start serving to the Internet, it takes several time before the websites start loading. Message "Looking up hostname" It can be from 30sec up to 5 Minutes! I have made a speed test. The download and upload speed is normal.
See this log file
| Code: |
[INFO] Fri Mar 14 07:53:50 2025 Log viewed by IP address 192.xxx.xxx.52
[INFO] Fri Mar 14 07:48:56 2025 Latest firmware version retrieved from the server was 1.6
[INFO] Fri Mar 14 07:48:17 2025 Allowed configuration authentication by IP address 192.xxx.xxx.52
[INFO] Fri Mar 14 07:23:18 2025 Blocked incoming TCP connection request from 211.99.2.8:38152 to 76.174.250.34:22
[INFO] Fri Mar 14 07:23:15 2025 Previous message repeated 1 time
[INFO] Fri Mar 14 07:11:46 2025 Lease 192.xxx.xxx.34 renewed by client 0016Dxxxxxxxx
[INFO] Fri Mar 14 07:11:46 2025 Assigned new lease 192.xxx.xxx.34 to client 0016Dxxxxxxx
[WARN] Fri Mar 14 07:11:46 2025 Lease expired 192.xxx.xxx.34 - was reassigned because a client specifically requested this address
[INFO] Fri Mar 14 07:07:49 2025 Blocked incoming TCP packet from 198.172.200.206:80 to 76.174.250.34:41564 as RST received but there is no active connection
[INFO] Fri Mar 14 07:01:19 2025 Blocked incoming ICMP packet (ICMP type 8) from 209.85.2.38 to 76.174.250.34
[INFO] Fri Mar 14 06:57:43 2025 Blocked incoming UDP packet from 78.179.50.67:11590 to 76.174.250.34:9853
[INFO] Fri Mar 14 06:55:21 2025 Lease 192.xxx.xxx.52 renewed by client 00132xxxxxxx
[INFO] Fri Mar 14 06:55:21 2025 Assigned new lease 192.xxx.xxx.52 to client 00132xxxxxxx
[INFO] Fri Mar 14 06:47:31 2025 Lease 192.xxx.xxx.52 renewed by client 00132xxxxxxx
[INFO] Fri Mar 14 06:47:31 2025 Assigned new lease 192.xxx.xxx.52 to client 00132xxxxxxx
[INFO] Fri Mar 14 06:46:44 2025 Initialization complete, starting DHCP server
[INFO] Fri Mar 14 06:46:44 2025 Time synchronized
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ISP Time Warner Cable "Roadrunner"
Motorola Cable Modem
ZyXEL X550 Router
Server Static IP direct connected to the router.
Printer Static IP direct connected to the router.
One Netgear Switch Static IP direct connected to the router.
One Computer auto direct connected to the router. (Archlinux)
two laptops wireless auto WPA2 to the router. Wireless is hidden. (Archlinux & VISTA)
All another computers are connected over the switch with auto DHCP. (Mac OS 10.4, Archlinux, openSUSE, and several testcomputers with differant Linux, Unix OSystems.
Last night I have shutdown everythink. *8 hours all was unplugged and "power off". I changed all Lan cable connection and also the static IP's.
Well still the same.
Ths is what RKhunter show me.
| Code: |
[root@archlinux-01 jada]# rkhunter --update
[ Rootkit Hunter version 1.3.2 ]
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 [ Updated ]
Checking file i18n/en [ No update ]
Checking file i18n/zh [ No update ]
Checking file i18n/zh.utf8 [ No update ]
[root@archlinux-01 jada]# rkhunter --checkall
[ Rootkit Hunter version 1.3.2 ]
Checking system commands...
Performing 'strings' command checks
Checking 'strings' command [ OK ]
Performing 'shared libraries' checks
Checking for preloading variables [ None found ]
Checking for preload file [ Not found ]
Checking LD_LIBRARY_PATH variable [ Not found ]
Performing file properties checks
Checking for prerequisites [ Warning ]
/bin/awk [ Warning ]
/bin/bash [ Warning ]
/bin/cat [ Warning ]
/bin/chmod [ Warning ]
/bin/chown [ Warning ]
/bin/cp [ Warning ]
/bin/cut [ Warning ]
/bin/date [ Warning ]
/bin/df [ Warning ]
/bin/dmesg [ Warning ]
/bin/du [ Warning ]
/bin/echo [ Warning ]
/bin/ed [ Warning ]
/bin/egrep [ Warning ]
/bin/fgrep [ Warning ]
/bin/grep [ Warning ]
/bin/groups [ Warning ]
/bin/kill [ Warning ]
/bin/less [ Warning ]
/bin/login [ Warning ]
/bin/ls [ Warning ]
/bin/lsmod [ Warning ]
/bin/more [ Warning ]
/bin/mount [ Warning ]
/bin/mv [ Warning ]
/bin/netstat [ Warning ]
/bin/ps [ Warning ]
/bin/pwd [ Warning ]
/bin/readlink [ Warning ]
/bin/sed [ Warning ]
/bin/sh [ Warning ]
/bin/su [ Warning ]
/bin/touch [ Warning ]
/bin/tr [ Warning ]
/bin/uname [ Warning ]
/bin/gawk [ Warning ]
/usr/bin/basename [ Warning ]
/usr/bin/chattr [ Warning ]
/usr/bin/csh [ Warning ]
/usr/bin/curl [ Warning ]
/usr/bin/diff [ Warning ]
/usr/bin/dirname [ Warning ]
/usr/bin/env [ Warning ]
/usr/bin/file [ Warning ]
/usr/bin/find [ Warning ]
/usr/bin/fuser [ Warning ]
/usr/bin/head [ Warning ]
/usr/bin/id [ Warning ]
/usr/bin/killall [ Warning ]
/usr/bin/last [ Warning ]
/usr/bin/lastlog [ Warning ]
/usr/bin/ldd [ Warning ]
/usr/bin/links [ Warning ]
/usr/bin/locate [ Warning ]
/usr/bin/logger [ Warning ]
/usr/bin/lsattr [ Warning ]
/usr/bin/lynx [ OK ]
/usr/bin/mail [ Warning ]
/usr/bin/md5sum [ Warning ]
/usr/bin/mktemp [ Warning ]
/usr/bin/newgrp [ Warning ]
/usr/bin/passwd [ Warning ]
/usr/bin/perl [ Warning ]
/usr/bin/pstree [ Warning ]
/usr/bin/rkhunter [ Warning ]
/usr/bin/runcon [ Warning ]
/usr/bin/sha1sum [ Warning ]
/usr/bin/size [ Warning ]
/usr/bin/slocate [ Warning ]
/usr/bin/sort [ Warning ]
/usr/bin/stat [ Warning ]
/usr/bin/strace [ OK ]
/usr/bin/strings [ Warning ]
/usr/bin/sudo [ Warning ]
/usr/bin/tail [ Warning ]
/usr/bin/test [ Warning ]
/usr/bin/top [ Warning ]
/usr/bin/uniq [ Warning ]
/usr/bin/users [ Warning ]
/usr/bin/vmstat [ Warning ]
/usr/bin/w [ Warning ]
/usr/bin/watch [ Warning ]
/usr/bin/wc [ Warning ]
/usr/bin/wget [ Warning ]
/usr/bin/whatis [ Warning ]
/usr/bin/whereis [ Warning ]
/usr/bin/which [ Warning ]
/usr/bin/who [ Warning ]
/usr/bin/whoami [ Warning ]
/usr/bin/tcsh [ Warning ]
/sbin/depmod [ Warning ]
/sbin/ifconfig [ Warning ]
/sbin/init [ Warning ]
/sbin/insmod [ Warning ]
/sbin/modinfo [ Warning ]
/sbin/modprobe [ Warning ]
/sbin/nologin [ Warning ]
/sbin/rmmod [ Warning ]
/sbin/runlevel [ Warning ]
/sbin/sulogin [ Warning ]
/sbin/sysctl [ Warning ]
/usr/sbin/adduser [ Warning ]
/usr/sbin/chroot [ Warning ]
/usr/sbin/groupadd [ Warning ]
/usr/sbin/groupdel [ Warning ]
/usr/sbin/groupmod [ Warning ]
/usr/sbin/grpck [ Warning ]
/usr/sbin/ip [ Warning ]
/usr/sbin/lsof [ OK ]
/usr/sbin/pwck [ Warning ]
/usr/sbin/syslogd [ Warning ]
/usr/sbin/tcpd [ Warning ]
/usr/sbin/useradd [ Warning ]
/usr/sbin/userdel [ Warning ]
/usr/sbin/usermod [ Warning ]
/usr/sbin/vipw [ Warning ]
/usr/sbin/xinetd [ Warning ]
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| Code: |
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 ]
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 ]
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 ]
f***`it Rootkit [ Not found ]
GasKit Rootkit [ Not found ]
Heroin LKM [ Not found ]
HjC Kit [ Not found ]
ignoKit Rootkit [ Not found ]
ImperalsS-FBRK Rootkit [ Not found ]
Irix Rootkit [ Not found ]
Kitko Rootkit [ Not found ]
Knark 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 ]
Phalanx Rootkit (strings) [ 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 ]
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 ]
Trojanit Kit [ Not found ]
Tuxtendo Rootkit [ Not found ]
URK Rootkit [ Not found ]
VcKit Rootkit [ Not found ]
Volc Rootkit [ Not found ]
X-Org SunOS Rootkit [ Not found ]
zaRwT.KiT 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 xinetd services [ None found ]
Checking for Apache backdoor [ Not found ]
Performing Linux specific checks
Checking kernel module commands [ OK ]
Checking kernel module names [ OK ]
|
| Code: |
Checking the network...
Performing check for backdoor ports
Checking for UDP port 2025 [ Not found ]
Checking for TCP port 2025 [ Not found ]
Checking for TCP port 2128 [ Not found ]
Checking for TCP port 14856 [ Not found ]
Checking for TCP port 47107 [ Not found ]
Checking for TCP port 60922 [ Not found ]
Performing checks on the network interfaces
Checking for promiscuous interfaces [ None found ]
|
| Code: |
Checking the local host...
Performing system boot checks
Checking for local host name [ Found ]
Checking for local startup files [ Found ]
Checking local startup files for malware [ None 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 [ Warning ]
Checking root account shell history files [ OK ]
Performing system configuration file checks
Checking for SSH configuration file [ Not found ]
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 [ None found ]
Checking for hidden files and directories [ Warning ]
|
| Code: |
Checking application versions...
Checking version of Exim MTA [ OK ]
Checking version of GnuPG [ OK ]
Checking version of Apache [ OK ]
Checking version of Bind DNS [ OK ]
Checking version of OpenSSL [ OK ]
Checking version of PHP [ OK ]
Checking version of Procmail MTA [ OK ]
Checking version of ProFTPd [ OK ]
System checks summary
=====================
File properties checks...
Required commands check failed
Files checked: 117
Suspect files: 114
Rootkit checks...
Rootkits checked : 113
Possible rootkits: 0
Applications checks...
Applications checked: 8
Suspect applications: 0
The system checks took: 9 minutes and 0 seconds
All results have been written to the logfile (/var/log/rkhunter.log)
One or more warnings have been found while checking the system.
Please check the log file (/var/log/rkhunter.log)
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mushroom
Ultimate Member
Joined: 29 Jun 2025
Posts: 2128
Location: Queen Charlotte B. C. Canada
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| Posted: Fri Mar 14, 2025 6:13 pm Post subject: Re: Infekted, Hijacked, Botnet? |
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| jada wrote: | I have a problem! Sinze few days, with every computer how I start serving to the Internet, it takes several time before the websites start loading. Message "Looking up hostname" It can be from 30sec up to 5 Minutes! I have made a speed test. The download and upload speed is normal.
ISP Time Warner Cable "Roadrunner"
Motorola Cable Modem
ZyXEL X550 Router
Server Static IP direct connected to the router.
Printer Static IP direct connected to the router.
One Netgear Switch Static IP direct connected to the router.
One Computer auto direct connected to the router. (Archlinux)
two laptops wireless auto WPA2 to the router. Wireless is hidden. (Archlinux & VISTA)
All another computers are connected over the switch with auto DHCP. (Mac OS 10.4, Archlinux, openSUSE, and several testcomputers with differant Linux, Unix OSystems.
|
When in doubt test with a LiveCD 
What you describe sounds more like a DNS problem your ISP is having
or a problem with the Cable Modem or Router.
_________________
SuSE 8.0, 8.2, 9.0, 9.1, 9.2, 9.3, 10.0, 10.1, 10.2, 10.3, 11.0, 11.1
Live CDs Mepis 8.0, Puppy 4.3.1, netbook- Zenwalk 6.2
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inactive
Sr. Member
Joined: 29 Aug 2025
Posts: 1207
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| Posted: Sat Mar 15, 2025 1:17 am Post subject: |
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| Yep, nothing there found that is out of the ordinary jada, even when running the test as root. There's files that are so locked down, that they can't be checked. I get this all the time with f-prot. You might try power cycling the router and modem and see if that helps.
_________________
Mandriva 2025.1 PWP
Mandriva Cooker
ArtistX live
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jada
Linux Guru
Joined: 13 May 2025
Posts: 3064
Location: Sun City, CA 92585
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| Posted: Sat Mar 15, 2025 11:30 pm Post subject: |
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| After replace all, Modem, Router, ethernet cables etc. It's still the same. I called time warner cable. They will be out next week and check my line. |
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mmmna
. . . .
Joined: 21 Apr 2025
Posts: 7224
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| Posted: Sun Mar 16, 2025 2:40 am Post subject: |
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Jada, try using OpenDNS. No, seriously. www.opendns.org.
I had the same issues with my Linksys. I visited OpenDNS, 15 minutes later, I'm rocking. Simple, simple, simple.
_________________
-Kubuntu 10.04 LTS Beta2 on Celeron D desktop
-PCLinuxOS 2025 LXDE on EeePC 900A with Atom n270 (modded with 32G SATA drive and 2G ram).
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lynch
Moderator
Joined: 15 Nov 2025
Posts: 2659
Location: The Diamond State
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| Posted: Sun Mar 16, 2025 10:06 am Post subject: |
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| mmmna wrote: | Jada, try using OpenDNS. No, seriously. www.opendns.org.
I had the same issues with my Linksys. I visited OpenDNS, 15 minutes later, I'm rocking. Simple, simple, simple. |
I use OpenDNS also. Works very well. 
| jada wrote: | | ...Message "Looking up hostname" It can be from 30sec up to 5 Minutes! I have made a speed test. The download and upload speed is normal. |
That's a DNS problem.
Did you try a ping test with the same websites- url and ip?
You can do this: | Code: | lynch@earth2:~> ping -c3 www.google.com
PING www.l.google.com (64.233.169.103) 56(84) bytes of data.
64 bytes from yo-in-f103.google.com (64.233.169.103): icmp_seq=1 ttl=242 time=18.9 ms
64 bytes from yo-in-f103.google.com (64.233.169.103): icmp_seq=2 ttl=242 time=16.0 ms
64 bytes from yo-in-f103.google.com (64.233.169.103): icmp_seq=3 ttl=242 time=17.0 ms
--- www.l.google.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2025ms
rtt min/avg/max/mdev = 16.023/17.310/18.908/1.202 ms |
Then try it by IP address: | Code: | lynch@earth2:~> ping -c3 64.233.169.103
PING 64.233.169.103 (64.233.169.103) 56(84) bytes of data.
64 bytes from 64.233.169.103: icmp_seq=1 ttl=242 time=15.4 ms
64 bytes from 64.233.169.103: icmp_seq=2 ttl=242 time=19.3 ms
64 bytes from 64.233.169.103: icmp_seq=3 ttl=242 time=16.9 ms
--- 64.233.169.103 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1998ms
rtt min/avg/max/mdev = 15.433/17.246/19.398/1.639 ms
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_________________
Mandriva 2025 Spring -2.6.31.12-server-2mnb
PCLinuxOS 2025 -2.6.26.8.tex3
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jada
Linux Guru
Joined: 13 May 2025
Posts: 3064
Location: Sun City, CA 92585
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| Posted: Sun Mar 16, 2025 3:55 pm Post subject: |
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| mmmna wrote: | Jada, try using OpenDNS. No, seriously. www.opendns.org.
I had the same issues with my Linksys. I visited OpenDNS, 15 minutes later, I'm rocking. Simple, simple, simple. |
This was a answer. It speeds up a lot. Thank's a lot
It is a cool work around, but still I have to figure out what the problem is. It was working over two years with out openDNS. |
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mushroom
Ultimate Member
Joined: 29 Jun 2025
Posts: 2128
Location: Queen Charlotte B. C. Canada
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| Posted: Sun Mar 16, 2025 5:00 pm Post subject: |
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| jada wrote: |
This was a answer. It speeds up a lot. Thank's a lot
It is a cool work around, but still I have to figure out what the problem is. It was working over two years with out openDNS. |
IPV6 is coming. not right away, but some ISP's are trying to get ready for it and there is bound to be a few hick-ups.
I am thinking about implementing openDNS to avoid them myself.
_________________
SuSE 8.0, 8.2, 9.0, 9.1, 9.2, 9.3, 10.0, 10.1, 10.2, 10.3, 11.0, 11.1
Live CDs Mepis 8.0, Puppy 4.3.1, netbook- Zenwalk 6.2
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jada
Linux Guru
Joined: 13 May 2025
Posts: 3064
Location: Sun City, CA 92585
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| Posted: Sun Mar 16, 2025 6:24 pm Post subject: |
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| mushroom wrote: |
I am thinking about implementing openDNS to avoid them myself. |
good idea  |
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crouse
Site Admin
Joined: 17 Apr 2025
Posts: 11831
Location: Iowa
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inactive
Sr. Member
Joined: 29 Aug 2025
Posts: 1207
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jada
Linux Guru
Joined: 13 May 2025
Posts: 3064
Location: Sun City, CA 92585
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| Posted: Mon Mar 17, 2025 5:20 am Post subject: |
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| DedannaRocks! wrote: | I went to opendns.com, but couldn't figure how to do it from there. I'm on a cable modem - it doesn't even say the brand name on it so I'm not sure what to pick there.  |
If you don't use a router, then modify your computer.
Enable OpenDNS: Unix/Linux SUSE
1. SUSE Linux 10.1
1. In /etc/sysconfig/network/config, change the MODIFY_RESOLV_CONF_STATIC_DNS line to MODIFY_RESOLV_CONF_STATIC_DNS="208.67.222.222 208.67.220.220"
2. Run "sudo /sbin/rcnetwork restart-all-dhcp-clients".
2. SUSE Linux 10.0 or 9.x
1. In /etc/sysconfig/network/dhcp, change the DHCLIENT_BIN line to DHCLIENT_BIN="dhclient".
2. Change /etc/dhclient.conf as we currently suggest.
3. Run "sudo /sbin/rcnetwork restart-all-dhcp-clients".
Enable OpenDNS: Unix/Linux Ubuntu
1. Open a terminal window and type the following.
| Code: | | $ sudo network-admin |
2. Change to the DNS tab and enter the following two addresses in the top of the first field labeled DNS Servers.
208.67.222.222
208.67.220.220
To avoid having your settings get revoked after reboots, or after periods of inactivity, do this:
| Code: | $ sudo cp /etc/resolv.conf /etc/resolv.conf.auto
$ sudo gedit /etc/dhcp3/dhclient.conf
# append the following line to the document
prepend domain-name-servers 208.67.222.222,208.67.220.220;
# save and exit
$ sudo ifdown eth0 && sudo ifup eth0 |
You may be required to change eth0 to your own network device's name if it uses a non-standard name. |
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jada
Linux Guru
Joined: 13 May 2025
Posts: 3064
Location: Sun City, CA 92585
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| Posted: Mon Mar 17, 2025 5:37 am Post subject: |
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| mushroom wrote: |
IPV6 is coming. not right away, but some ISP's are trying to get ready for it and there is bound to be a few hick-ups.
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| Quote: |
"Sometime around midnight on February 26th (at least for the SoCal users), TimeWarner's RoadRunner service started intercepting failed DNS requests, redirecting them to RoadRunner's own search and advertising platform. To see if this has been enabled in your area, try visiting {some random string}.com in your Web browser. This feature subverts user preferences set within browsers, which allow the user to select which search engine receives their typos and invalid domains. RoadRunner users can disable this function — or they can just use OpenDNS. Here is an example RoadRunner results page.
http://slashdot.org/article.pl?sid=08/02/26/1741253&from=rss |
I am going to find it out  |
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inactive
Sr. Member
Joined: 29 Aug 2025
Posts: 1207
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jada
Linux Guru
Joined: 13 May 2025
Posts: 3064
Location: Sun City, CA 92585
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