I have read many helpful feedbacks regarding choosing a reliable web host. Most of the concerns are centered around costs. However, I am more particular about the relative security of my website in addition to other perks such as space, speed and bandwidth. I rate my concerns on a 1-10 scale:
Security 9/10
Bandwidth 7.5/10
Disk space 6/10
E-mails, backups, etc: 8/10
Cost: 7/10
I am conducting some research into potential risks that web hosts have to deal with on a daily basis. What potential security risks are there for web hosts ? And how do they overcome these issues?
View 6 Replies View RelatedI have hosting - php/apache - with Orchard Hosting, and I've been with them for many years and there's never been a problem.
Then, a couple of days ago I realised from my logs a text file had been put in a directory in my webspace without me knowing anything about it. I emailed my host and they said it could have happened by either:
1. someone using ftp and getting into my account
2. someone injecting PHP through a form on the site.
I've added some code to my validation to look for <? and fwrite keywords but I think it's secure! But in the logs, there's no visits to the pages where the forms are (one of which is AJAX powered) - so I'm not sure it's injection.
Is someone using some kind of anonymous connection to my FTP (which shoudn't work!) the most viable reason why this has happened?
I have a server is running windows 2003 enterpirse as WEB HOSTING. It don'nt configure to become Domain Controller. Anyone advise me that Should I do if this server will attached by hacker, virus or OS error,damage?
View 4 Replies View RelatedFrom some weeks I try to have a secure install for my Debian. THis server will be a shared hosting host so need special security but I don't know how to do this.
My requirement are :
- Apache
- PHP (mod, not cgi)
Actually, users can navigate into my server by using phpshell script. And someone put lots of file into /tmp directory so I tri to secure all of that but don't find good tuto for that; do you know where can i have some?
And what about php using cron so execute with php-cli how to secure it?
About next week, I'll put a Linux box on the web.
Could anyone suggest what kind of security measures I could implement?
Iptables:
- Protect against DDos?
- Protect against certain worms?
- Protect against flooding?
Services:
- Protect against constant dictionary attacks based on ports?
Pretty much any experience you could put down in this thread would be invaluable.
Also mod, if this shouldnt be here. Feel free to move, Im not sure where it should go!
I'm a web designer trying to find a web host for a client. I've set up several clients, including the one in question, at IX and haven't had a problem until the other day, when my client's site was hacked. A redirect code was inserted, taking the user to a false site that installed a virus. The offending code was removed by IX but the client's experience with their tech support was less than satisfactory. I've seen similar stories on this forum and others.
I'm looking to find another host and have some questions about security on shared hosting plans. I understand that they're not completely secure but I'm wondering if certain hosts or certain servers are more susceptible to hacks than others? I see very little, if any, mention of security on sites of hosts offering low-cost, shared hosting plans.
Fewer low-cost hosts seem to be offering dedicated IP addresses. Is a shared IP address going to be less secure than a dedicated one?
My client's site is info only -- no ecommerce or user login -- so it doesn't have to be Fort Knox, but they shouldn't have to worry about it being hijacked either.
Lots of questions, I know. It's my first time posting on this forum, so be gentle.
Which methods is need to protect a hosting server?
View 10 Replies View RelatedI am in a shared hosting environment. Their php's setting does not have open_basedir set and safe_mode is off.
I was poking around their server and noticed that using some simple system() calls within a php script, I was able to access /etc/passwd and therefore access all their client's public_html.
I am currently calling them to let them know of the vulnerability. But out of curiosity, is it normal that I can read all the other site hosted? They do have config files with mysql pasword in it.
I've been reading these forums for a while now... a lot of very interesting and useful stuff. However, I've always been happy with the hosting of my site until recently, and have never had a pressing reason for wanting to change.
However, I recently had a four day outage to my site. The hosting company (which shall remain nameless, for now) put this down to a security problem which meant they had to take down the shared Windows server and go through all the sites on the server looking for the site that had bad code which caused the security outage. I also has problems with malicious javascript being injected into my pages prior to this.
I quote from the hosting company "Unfortunately this is a shared hosting solution and by its very nature, it means that poor code affects all sites on that web server. .... The vulnerabilities of ASP, MS-SQL and .Net are well documented." They then proceeded to try to sell me a dedicated server (which I believe will likely be too expensive for my needs).
I'm no expert on hosting, but this doesn't sound right to me. Is all Windows shared hosting afflicted with these kinds of security problems? or only when it's not set up right? I need reliability, but not absolute 100% bulletproof uptime if it comes with a dedicated server pricetag. I do need to avoid outages of a number of hours/days (!!) however
Hopefully one of the experts here can put me right I can't believe that Windows hosting security is that bad that no company can have a shared hosting product that avoids the aforementioned problems. What do you think?
MySQL 5.0 supports stored procedures -- but is it safe to allow shared hosting customers to have privileges to create them? If the procedures are global, does that mean that:
a) one customer could write a procedure which accessed another customer's data?
b) any customer could call a procedure created by a different customer?
c) any customer could override an existing mysql function in a way that would affect other customers?
d) any customer could write a function that bound to a system library and crash the entire server instance?
I normally hang out in the web design area, so it there is a related thread, please point me there.
I have been hosting a very small site with, what I thought, was a respectable local company. This morning I went to my home page and guess what - my friendly neighbourhood hacker paid me a visit. Gone (commented out) is my home page content, replaced with the following text:
I would like to report that your site is highly compromisable. Please review your hosts security settings. I would recommend changing though, they are a piece of ****.
(I have not deleted anything. the original page is commented out but is still located in this file.)
This security message has been brought to you by Scorpian & AV.
How do I deal with this? If I get no response from my current hosting company on how someone got hold of my ftp password, I want to move my site, but how do I know the next company has better security measures? And what should these security measures include? Any tick lists out there for testing domain host's security?
I can resolve this situation I have.
I sent a server I have with a provider to have a RAM upgrade yesterday at 15:33 UTC, and ever since then I have had no access to my server.
SSH has been changed back to port 22, from a random high port.
root password has changed
RSA key has changed too.
I can see 3 possable reasons for this:
1) It's a different server plugged into the rack/router or a stolen IP
2) My provider "kindly" formatted and reinstalled my OS.
3) I have a compromised server, I very much doubt this as the server was offline.
I informed my provider about 18 hours ago that I had a "possable compromised server" and since then I have been given the run around as to what is happening.
For the last couple hours or so I have been trying to get them on live chat, which shows as online, but no-one answers. Thats another pet hate of mine.
I also have a couple tickets open asking for an update as they are not answering my origional ticket with updates.
Am I just being impaitent wanting a resolution to this in less than 18 hours or am I correct to complain?
I am trying to determine if i am hacked, here is details:
I just got a message from softlayer support: ABUSE - 66.228.xxx,xxx - HACKING/MALICIOUS ACTIVITY - IMMEDIATE ACTION REQUIRED. with some log like this:
Quote:
Connection attempt to TCP IP.IP.IP.34:80
>from 66.228.xxx.xxx:41212 flags:0x02 Sep 28 14:05:55 PDT kernel:
Also, I did a rkhunter scan and found:
Quote:
cat /var/log/rkhunter.log | grep Warning
[18:26:29] /usr/bin/GET [ Warning ]
[18:26:29] Warning: The command '/usr/bin/GET' has been replaced by a script: /usr/bin/GET: perl script text executable
[18:26:29] /usr/bin/groups [ Warning ]
[18:26:29] Warning: The command '/usr/bin/groups' has been replaced by a script: /usr/bin/groups: Bourne shell script text executable
[18:26:30] /usr/bin/ldd [ Warning ]
[18:26:30] Warning: The command '/usr/bin/ldd' has been replaced by a script: /usr/bin/ldd: Bourne shell script text executable
[18:26:35] /usr/bin/whatis [ Warning ]
[18:26:35] Warning: The command '/usr/bin/whatis' has been replaced by a script: /usr/bin/whatis: Bourne shell script text executable
[18:26:36] /sbin/ifdown [ Warning ]
[18:26:36] Warning: The command '/sbin/ifdown' has been replaced by a script: /sbin/ifdown: Bourne-Again shell script text executable
[18:26:36] /sbin/ifup [ Warning ]
[18:26:36] Warning: The command '/sbin/ifup' has been replaced by a script: /sbin/ifup: Bourne-Again shell script text executable
[18:27:43] Checking '/etc/xinetd.d/ftp_psa' for enabled services [ Warning ]
[18:27:44] Checking '/etc/xinetd.d/poppassd_psa' for enabled services [ Warning ]
[18:27:44] Checking '/etc/xinetd.d/smtp_psa' for enabled services [ Warning ]
[18:27:44] Checking '/etc/xinetd.d/smtps_psa' for enabled services [ Warning ]
[18:27:44] Checking for enabled xinetd services [ Warning ]
[18:27:44] Warning: Found enabled xinetd service: /etc/xinetd.d/ftp_psa
[18:27:44] Warning: Found enabled xinetd service: /etc/xinetd.d/poppassd_psa
[18:27:44] Warning: Found enabled xinetd service: /etc/xinetd.d/smtp_psa
[18:27:44] Warning: Found enabled xinetd service: /etc/xinetd.d/smtps_psa
[18:27:59] Checking for hidden files and directories [ Warning ]
[18:27:59] Warning: Hidden file found: /usr/share/man/man1/..1.gz: gzip compressed data, from Unix, max compression
[18:27:34] Checking running processes for deleted files [ Warning ]
[18:27:34] Warning: The following processes are using deleted files:
[18:27:34] Process: /usr/libexec/mysqld PID: 4773 File: /tmp/ib2RpbEj
[18:27:34] Process: /usr/sbin/httpd PID: 8449 File: /tmp/.apc.PGGxew
[18:27:34] Process: /usr/sbin/httpd PID: 8452 File: /tmp/.apc.PGGxew
[18:27:34] Process: /usr/sbin/httpd PID: 12102 File: /tmp/.apc.PGGxew
[18:27:34] Process: /usr/sbin/httpd PID: 12950 File: /tmp/.apc.PGGxew
[18:27:34] Process: /usr/sbin/httpd PID: 13044 File: /tmp/.apc.PGGxew
[18:27:34] Process: /usr/sbin/httpd PID: 13046 File: /tmp/.apc.PGGxew
So does that mean my server was compromised?
My information:
I have my photography site (sfxphoto.com) currently being hosted as my main site (site contents are located inside of the publichtml folder). I also have my photo retouching site (elite-retouch.com) being hosted as a sub-domain under the main site (which has it's own folder inside of the publichtml folder). I'm being hosted through InfluxHost on a Linux server.
My Dilemma:
For the photo retouching site, I want to be able to give my clients their OWN FTP access to a designated potion of the server.
So, lets say my client upload directory is "publichtml/eliteretouch.com/client_ftp". I then want to be able to make a folder for (we'll call him) client_a inside of the "/client_ftp" folder. So the full directory to THAT clients specific folder will be: "publichtml/eliteretouch.com/client_ftp/client_a"
How can I:
1) ...set their specific FTP to open to their directory only?
2) ...ensure that they cannot navigate to other folders on my server?
3) ...make it so that the login information doesn't carry the MAIN site name, but the sub-domain site name instead?
I have a few shred hosting servers I run. One of them keeps getting listed on CBL. It is very frustrating. Does anyone have an tools, tips, or tricks on finding the compromised?
So far I have confirmed that a script is using PHP to send mail out bypassing the MTA. It is faking the HELO and impersonating a well known ISP.
I used a combination of tshark and netstat. tshark can show me the HELO and EHLO. When I see the wrong entry I cross check that with netstat to see what. So Netstat only shows that it was PHP not the script path.
Here are the commands I'm running:
Code:
nohup netstat -c -p -n -e | grep -i ":25" > /var/log/monitor/netstat-smtp.log &
nohup tshark -f "port 25 and src host XX.XX.XX.XX" > /var/log/monitor/tshark-smtp.log &
Then I grep for what I'm looking for:
grep -i "HELO" /var/log/monitor/tshark-smtp.log
Is there a way to get Netstat to show the script path or complete command that is establishing the connection? Currently these scripts are eating up memory to a point that other process or getting killed off.
I also tried to force all mail through the MTA, but When I enable SMTP_BLOCK in my firewall config I get and error:
*WARNING* Cannot use SMTP_BLOCK on this VPS as the Monolithic kernel does not support the iptables module ipt_owner - SMTP_BLOCK disabled.
If there is a better way I'm game. Maybe some IDS that can tell me more of what is going on with the server?
Linux Fedora 5
I just got a letter from my dedicated host stating we had just been compromised. These servers just were set up last week! And there is nothing on them yet. The only thing I have done is modified the /etc/hosts file via SSH.
My servers are not even public yet. Can SSH'ing in from an unsecured wireless network make me vulnerable?
What do you guys think? Best way not to let this happen again?
Oh this is great :-| He's still logged in!
[root@server~]# who
root pts/0 2007-06-06 07:12 (xxx)
test pts/2 2007-06-06 03:08 (81.89.10.92)
Ok...posting this here to hopefully get someone's attention at gnax.net.
I've written their abuse@gnax.net and engineer@gnax.net multiple times and even called into their support line and spoke with Stephen (or Steven). No one there seems to care.
They have a group of Vietnamese hackers on their network that are launching attacks from several of their servers. They also have a google phising site on one of the servers.
Spoke with Stephen at Gnax support and his answer was that it wasn't his job and I needed to send a e-mail to abuse. After telling him that I'd done that multiple times he basically said oh well that he didn't know what to do.
Seems like the admins of gnax.net are either very irresponsible, stupid or just ignorant.
Here are the URL's.
[url]
[url]
Just replace the 1's with t's and you can see for yourself. The fwooshnet.com attempts to download a trojan to your system so if you don't know what your doing don't visit either URL.
Hopefully admins from Gnax watch this forum.
I receive reports from my DC that my server is launching some hacking / malicious activity. This is the log that they provide:
Quote:
>
> Aug 20 12:34:35 ensim sshd[30628]: Did not receive identification
> string from MY.SERVER.IP
>
> Aug 20 12:44:23 ensim sshd[444]: Failed password for admin from
> MY.SERVER.IP port 57896 ssh2
>
> Aug 20 12:44:23 ensim sshd[444]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:26 ensim sshd[445]: Failed password for root from
> MY.SERVER.IP port 58029 ssh2
>
> Aug 20 12:44:26 ensim sshd[445]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:28 ensim sshd[446]: Failed password for root from
> MY.SERVER.IP port 58141 ssh2
>
> Aug 20 12:44:28 ensim sshd[446]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:31 ensim sshd[449]: Failed password for root from
> MY.SERVER.IP port 58276 ssh2
>
> Aug 20 12:44:31 ensim sshd[449]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:33 ensim sshd[450]: Failed password for root from
> MY.SERVER.IP port 58421 ssh2
>
> Aug 20 12:44:33 ensim sshd[450]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:36 ensim sshd[453]: Failed password for root from
> MY.SERVER.IP port 58565 ssh2
>
> Aug 20 12:44:36 ensim sshd[453]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:38 ensim sshd[455]: Failed password for root from
> MY.SERVER.IP port 58672 ssh2
>
> Aug 20 12:44:38 ensim sshd[455]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:41 ensim sshd[456]: Failed password for root from
> MY.SERVER.IP port 58787 ssh2
>
> Aug 20 12:44:41 ensim sshd[456]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:43 ensim sshd[457]: Failed password for root from
> MY.SERVER.IP port 58961 ssh2
>
> Aug 20 12:44:43 ensim sshd[457]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:46 ensim sshd[458]: Failed password for root from
> MY.SERVER.IP port 59132 ssh2
>
> Aug 20 12:44:46 ensim sshd[458]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:48 ensim sshd[459]: Failed password for root from
> MY.SERVER.IP port 59348 ssh2
>
> Aug 20 12:44:48 ensim sshd[459]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:51 ensim sshd[465]: Failed password for root from
> MY.SERVER.IP port 59495 ssh2
>
> Aug 20 12:44:51 ensim sshd[465]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:53 ensim sshd[466]: Failed password for admin from
> MY.SERVER.IP port 59622 ssh2
>
> Aug 20 12:44:53 ensim sshd[466]: Received disconnect from
> MY.SERVER.IP: 11: Bye Bye
>
> Aug 20 12:44:56 ensim sshd[467]: Failed password for admin from
> MY.SERVER.IP port 59803 ssh2
>
> Aug 20 12:44:56 ensim sshd[467]: Received disconnect from
> MY.SERVER.IP: 11:
one of the worst things (in hosting) has happened. I received a notice this morning from lfd (configserver) that someone had logged into my server as root and it wasn’t me.
Unfortunately I didn’t notice it until eight hours later so I have no idea (yet) what happened during that period. Thankfully I don’t have any really critical data on the system that could have been stolen.
I’m in the process of restoring from a full system backup right now. After that’s done I’m going to look to see what the differences are between the files from the backup and that on the comprised drive. I’m not sure if I’ll get anything useful from the diff but hopefully I’ll find a clue as to how they got root access.
Then of course I need to get my server back up. However, I don’t want to do this until I’ve taken some steps to identify how the individual got in and take some additional preventative steps.
Here’s what I am planning on doing:
1) Check to make sure all exposed services are patched and look at some security sites to see if there are any known vulnerabilities for these services. Anyone know which sites are good to look at?
2) Change firewall to only allow ssh access from a couple specific IP addresses.
3) Disable root ssh access so I have to login via a different account and perform sudos, etc.
4)?
I’ll also look for a good server-hardening guide to see if there are some obvious things I forgot to secure.
Do any of you find folks have any other suggestions or resources that I should check out?
I just received a fairly scary WHMCS notice, you can view the details here:
<<please don't paste the file names, there are accounts that may have these on them>>
What are your thoughts on the entire situation? Personally, I'm a tad fearful (luckily, I hadn't upgraded to the next version yet as I was letting the other users play beta-testers) given the fact that there wasn't any versioning / modification 'notification' system in place on their end.
I'm fearing further updates. In essence, my concern is that the WHMCS development team isn't entirely certain how they were backdoored or to what scale they were backdoored.
Are their own billing systems & servers hosted in the same environment, were our billing details also released? etc. I want to know the scale of the attack.
My windows server 2003 server password has been changed. My host tells me they must reload the entire OS in order to fix it..
Is there no way they can go in and rescue my server? Would save me alot of work.
So one of the sites on our box was compromised earlier today.
We've shut it down for now and contacted our sysadmin to help research the problem. Not sure if he will be able to really help much as he's only done updates and such in the past.
Any idea of quality sysadmins who might be able to investigate the box and the site?
I have been trying to troubleshoot our Windows 2003 server for weeks, but have made no lead way. The following are the steps they take to breach the server.
“They” are able to create an account. Some used usernames they have created are: sysadmin, adm, mssqladm.
It is very odd, looking in the event viewer, they just appear to create accounts out of the blue, they don’t even login or attempt to login or anything, all the sudden it says, New Account Created.
“They” then change the password of the account they just created.
Then “They” assign themselves the following group permissions, ‘Users’, and ‘Administrators’. ** SHAKING MY HEAD ** How the bloody hell do they assign themselves Administrator rights?
Then the do a few different actions depending, often times they disabled the windows firewall, and change open ports, other times they simply just logoff, other times, they have placed Trojans horses and other malware in their temporary internet folder under their use folderr.
This has been a cat and mouse game for weeks, I catch the new account, and immediately delete it, and check the firewall and enable if needed, then run a full system scan with AVG and Prevx. Sometmies AVG finds Trojans and malware, other times its clears.
I have racked my brain, checked all running processes with google, and they are seem legit. I have updated everything in windows via windows update, we are running windows 2003 server SP2. I have looked at the users and groups and everything seems secure.
Do you have guys have any idea what is going on? I have feeling something is running internally, which is allowing them to create the accounts.
Is there a tool that tracks all currently running processes, and allows you to go look at the logs to see what exactly was running at a certain time?
My server (using plesk 8.1 on windows 2003 server) has been compromised with some sort of rootkit and I'm investigating vulnerabilities. This server hosts some of my asp.net applications and I have to grant Modify Permission to IIS WP (iwam_plesk) user on Some subfolders (under Httpdocs folder for each domain). Is it a security problem? if yes, how else can I allow asp.net applications to write to, say, an Access db?
View 2 Replies View RelatedI am a web designer, and have been doing this for about 5 years now and have never encountered such a problem. I had a problem come up a few days ago where one of my clients got into an argument with the Mavrick Team web hosting and computer services company's owner regarding services. She has reported to me that he went into her email account, and has emailed her clients false information about her services after their heated discussion. She told him that she was going to press charges. He told her that he had harvested all of her clients email addresses and will email them to her competitors if she does not back down. What can she do? I feel awkward as I am in the middle of it now. I was the one who referred her to Mavrick Team (aka as I host them) for web hosting services, and moved her site to their servers. This man has created such a big problem for this women now. Her clients are doubting her services and he is blackmailing her. She does not owe him any monies. She has forwarded two of the emails that her clients forwarded to her, so I know she is not making this thing up. I advised her to move all of her emails to a personal email account, contact all of her clients to let them know that someone has access to their info, and I am helping her move her site. Who can she report them to?
View 12 Replies View Relatedwhose has 5 email accounts and several computers Windows and Mac.
Some spam has been sent out to people in his address book. I received one and have the email headers.
What tools are there for identifying which account/machine has been compromised?
Even worse, they didn't even notice until I called. If you're a 1and1.com customer I recommend you change your username and password now!
I included some log snippets to help you make sure your account hasn't been compromised.
1and1.com hacked
I run a web hosting company and one of my servers is a LAMP server running CentOs 5. A user of mine has a Joomla installation running to manage his website and he has run into the following problem that I am puzzled by.
When Joomla adds a component or module to itself, or when a user uses the Joomla upload functionality, Joomla will add the new files under the user name "apache". This makes sense as it is the apache service running PHP that is actually creating the files.
However, when he FTP's into the account to modify these files, he doesn't have the appropriate permissions to do so as he doesn't have a root level login, just permissions on his home directory which is the site. Any help would be much appreciated.
Also, does anyone know how to change the owner/group of a directory and all of its sub directories in Linux without changing the actual permissions? I.e. some of the files in the folder have different permissions (0644 as apposed to 0755) than its parent but if I do a top down user/group change on the folder it will change everything in that folder to 0755.
I've been trying to fight off a hacker's attack for the past 24 hours. Chronologically, this is how the events evolved:
- Yesterday, I tried SSH-ing into my server as usual and I got an error saying that the host's key was not recognized, which made a bit suspicious
- I tried logging into my VPS' PowerPanel, but my root password did not work, which I found disturbing. I reached out to support and they reset the password
- I ignored Putty's warning and SSH-ed into the server and was greeted by this, which I've never seen before:
Code:
Last login: Wed Mar 14 2007 14:13:35 -0500
No mail.
This made even more conscious and I started actively searching for indicators of a breach.
- The following processes were running, and I did not recognize them:
Code:
named 15756 0.0 0.4 36088 2256 ? S Mar14 0:00 /usr/sbin/named -u named -t /var/named/chroot
dmorg 26360 0.0 0.1 2264 872 pts/2 T 20:40 0:00 sh -c (cd /usr/share/man && (echo ".ll 14.2i"; echo ".pl 1100i"; /usr/bin/gunzip -c '/usr/share
dmorg 26361 0.0 0.1 2264 512 pts/2 T 20:40 0:00 sh -c (cd /usr/share/man && (echo ".ll 14.2i"; echo ".pl 1100i"; /usr/bin/gunzip -c '/usr/share
- Then I found a user called 'pma' in the /home directory, which I had never created. I could not find any suspicious files in the user's directory
- I finally spotted the point of breach in /var/log/messages:
Code:
Mar 15 15:05:25 xxxxxxxxx passwd(pam_unix)[28121]: password changed for root
Mar 15 15:06:34 xxxxxxxxx su(pam_unix)[30182]: session opened for user news by (uid=0)
Mar 15 15:07:16 xxxxxxxxx su(pam_unix)[30182]: session closed for user news
Mar 15 15:22:04 xxxxxxxxx sshd[20118]: Listener created on port 22.
Mar 15 15:22:04 xxxxxxxxx sshd[20119]: Daemon is running.
Mar 15 15:28:01 xxxxxxxxx su(pam_unix)[32568]: session opened for user pma by (uid=0)
Mar 15 15:28:45 xxxxxxxxx su(pam_unix)[32568]: session closed for user pma
Somehow they had gotten in as root and then opened sessions for news and pma.
- This morning I finally found where the hacker's files are hiding. He had created a new user overnight and a directory in there called "...". The folder contains various files:
Code:
[root@xxxxxxxxx root]# ls -al
total 445
drwxr-x--- 8 root root 1024 Mar 16 15:48 .
drwxr-xr-x 20 root root 1024 Mar 16 15:48 ..
drwxr-xr-x 2 1004 1004 1024 Dec 17 08:57 ...
-rw-r--r-- 1 root root 1126 Aug 23 1995 .Xresources
-rw------- 1 root root 14641 Mar 16 15:47 .bash_history
-rw-r--r-- 1 root root 24 Jun 10 2000 .bash_logout
-rw-r--r-- 1 root root 234 Jul 5 2001 .bash_profile
-rw-r--r-- 1 root root 176 Aug 23 1995 .bashrc
-rw-r--r-- 1 root root 210 Jun 10 2000 .cshrc
-rw------- 1 root root 38 Jul 26 2005 .mysql_history
drwx------ 2 root root 1024 Mar 15 18:01 .ssh
drwxr-xr-x 2 root root 1024 Mar 15 15:21 .ssh2
-rw-r--r-- 1 root root 196 Jul 11 2000 .tcshrc
Code:
[root@xxxxxxxxx root]# cd "..."
[root@xxxxxxxxx ...]# ls -al
total 420
drwxr-xr-x 2 1004 1004 1024 Dec 17 08:57 .
drwxr-x--- 8 root root 1024 Mar 16 15:48 ..
-rwxr-xr-x 1 1004 1004 141817 Sep 3 2001 init
-rw-r--r-- 1 1004 1004 113482 Mar 15 15:09 log
-rw------- 1 1004 1004 640 Feb 18 05:34 messages
-rw-r--r-- 1 1004 1004 664 Feb 27 01:12 muhrc
-rwxr-xr-x 1 1004 1004 165596 Nov 2 2004 pico
-rw------- 1 1004 1004 5 Mar 15 15:09 pid
[root@xxxxxxxxx ...]#
- Here's what's in the log file:
Code:
[root@xxxxxxxxx ...]# less log
[Thu 08 May 08:03:27] + ---------- NEW SESSION ----------
[Thu 08 May 08:03:27] + muh version 2.05d - starting log...
[Thu 08 May 08:03:27] + listening on port 6667.
[Thu 08 May 08:03:27] + muh's nick is 'StefanG'.
[Thu 08 May 08:03:27] + trying server 'geneva.ch.eu.undernet.org' on port 6667...
[Thu 08 May 08:03:28] + tcp-connection to 'geneva.ch.eu.undernet.org' established!
[Thu 08 May 08:03:29] + connected to 'Geneva.CH.EU.Undernet.org'.
[Thu 08 May 08:03:30] + caught client from 'pcp02588223pcs.shlb1201.mi.comcast.net'.
[Thu 08 May 08:03:45] + authorization successful!
[Thu 08 May 08:03:45] + reintroducing channels...
[Thu 08 May 08:07:54] + ---------- NEW SESSION ----------
[Thu 08 May 08:07:54] + muh version 2.05d - starting log...
[Thu 08 May 08:07:54] + listening on port 6667.
[Thu 08 May 08:07:54] + muh's nick is 'StefanG'.
[Thu 08 May 08:07:54] + trying server 'eu.undernet.org' on port 6667...
[Thu 08 May 08:07:55] + tcp-connection to 'eu.undernet.org' established!
[Thu 08 May 08:08:05] + connected to 'Diemen.NL.EU.Undernet.org'.
[Thu 08 May 08:08:05] + caught client from 'pcp02588223pcs.shlb1201.mi.comcast.net'.
[Thu 08 May 08:08:05] + authorization successful!
[Thu 08 May 08:08:05] + reintroducing channels...
There is a whole lot of these in that log file, and the timestamps look odd. I am not sure what all this is.
- This is where I am at right now. Can you guys help figure this thing out?
How did they get in? What sort of vulnerability are they using? How can I patch things up?
- Here is my server info:
Code:
[root@xxxxxxxxx ...]# uname -a
Linux xxxxxxxxx.org 2.6.9-023stab033.9-enterprise #1 SMP Tue Dec 5 14:40:57 MSK 2006 i686 athlon i386 GNU/Linux
[root@xxxxxxxxx httpd]# vmstat 5 5
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
1 0 0 390688 0 0 0 0 0 0 0 8365 1 0 99 0
0 0 0 390524 0 0 0 0 0 0 0 0 0 0 100 0
0 0 0 390524 0 0 0 0 0 0 0 0 0 0 100 0
0 0 0 390528 0 0 0 0 0 0 0 0 0 0 100 0
0 0 0 390528 0 0 0 0 0 0 0 0 0 0 100 0
- I have Apache & MySQL & PHP running. I host 3 websites. They run Simple Machines Forum 1.1.2, phpMyAdmin, phpcollab, awstats and that's about it.