Security :: Qmail Hacked In Server \ Cannot Find Any Suspicious Script Running Using Ps Xaf Command?
Jan 3, 2011
My server is probaly hacked and sending spam emails. I see them randomly in maillog (/usr/local/psa/var/log/maillog, server has a plesk panel), sometimes a few in a long time, sometimes a lot of them.Here is a sample of it:
Jan 4 00:47:08 acv360 qmail-remote-handlers[17662]: Handlers Filter before-remote for qmail started ...
Jan 4 00:47:08 acv360 qmail-remote-handlers[17662]: from=root@acv360.com
What the most harmful thing can malware program started as separate limited user account do if it has access to the X server? Network and filesystem things are already considered by chroot and netfilter.
It obviously can lock the screen and I will need to switch to other vt and kill it manually. Can it for example disrupt other GUI programs on the same X server (access a root terminal in nearby window)?
I know that it is safer to run it in separate X server, for example, in Xtightvnc or even some virtual machine, but how dangerous is to just run it like other programs?
I have LAN with 20 machines. I see that one of them is infected. Its sending a lot of packets to the internet. My internet connection at this momment is realy slow. What should I do? How to detect which machine is infected? I'm using hardware firewall. Fortigate... Its hard to configure there nice logs. Any good software. I don't want to switch off network cable from each machine and check.
Awoke to millions of failed SSH attempts into my public server. Behind a firewall which forwards only SSH and HTTP. Local iptables deny everything except SSH and HTTP. Exact same symptoms and results as Chris over at his site: here.I just want to know how they managed to execute a script, or make changes etc? Here's some info:According to cat /var/log/secure | grep "Accepted" no one besides myself gained entry via SSH.The FTP account (500:48 (Purposely in apache group)) is chrooted to a 775 directory and vsftpd does not accept anonymous entry. vsftpd and xferlog's are empty?
Code: You have new mail in /var/spool/mail/root [root@dev etc]# tail /var/spool/mail/root
I always use professional services to secure my servers. Everything was fine for years but a week ago my server got hacked.I don't know how the hacker got my username/password - it was not something like admin, password.9 months ago my PC was infected with some virus which connected to the FTP server by using password which was saved in CuteFTP and infected all index files with some javascript. Then I changed the user/FTP password and didn't save it anymore in Cute FTP. Of course, I checked all the folders and re-uploaded all infected files. Is it possible that this virus uploaded some hidden file which was able to get the new password for this account?
The server was hacked from so called Tor IP address. I am tiref of worrying about server security and now have an idea to get a static IP address from my ISP and to allow logins only from this IP address. What do you think about it? This idea looks good for me but are there any risks to lose access to the server. Can ISP provider change the static IP address for some reason?
My server (Ubuntu 10.04 desktop) was hacked. I had my ethernet plugged in to an Intel 82557 Ethernet Pro card (Pulse) when my server was first attacked. After it was attacked I reinstalled the system but my ethernet card still would not work. Ubuntu recognized it, but it is continually disconnected and the little status lights on the card do not light up anymore.
So then I plugged the ethernet to the mother board itself. Well, my server was hacked again and now the ethernet on the motherboard does not work. Again, Ubuntu (after a reinstall) recognizes the hardware but nothing happens when I plug the etherent in. The motherboard is a BioStar P4M900 VIA chipset. I have a few of the system logs here [URL] which I saved right after the first attack.
I just got control over a server that was hacked several months back. The other day we started receiving rejected emails sent from my server to a yahoo email address that is no longer active that contained users login information. I am trying to find the process that is sending these emails. So far its been like finding a needle in a haystack. The email that is being sent is appending the login information each time it is sent so there must be a local file that contains this information. I have tried using grep and find without any luck.
is qmail server running in the secondary office and it was working fine. yesterday qmail suffered some problem.i came to know about the problem today.now after troubleshooting and looking into the server, the qmailclt stat commands shows that all services are working and there is nothing going crazy in the server. The maillog is showing errors which i am pasting here for the convienance.
while sending mail form squirrer mail it gives erorqmail-inject: fatal:unalbe to exec qq(#4.3.0)iam not able to send mail.i googled but not got solution.
Checking /dev for suspicious file types [ Warning ] [13:37:16] Warning: Suspicious file types found in /dev: [13:37:16] /dev/shm/pulse-shm-43136623: data
I have been running rkhunter but how do i view the /var/log/rkhunter.log? I have tried using: sudo /var/log/rkhunter.log but all i got was "Command not found?
I know this post isn't strictly linux based, but since the system in question appears to be using Linux and I am as well I decided to post this here. In doing other network playing with Ubuntu Sever 10.10 I noticed that on all traceroutes I did to any IP the second hop from my house jumped through a connection on IP 24.96.153.61 which I think should only be another dynamic IP Knology.net customer...
In scanning the IP I now know that its a Juniper Junos Router 9.2R1.10 (Probably running on some VMware based on googling?) Open ports show: 22 ssh openSSH 4.4 v. 1.99 23 telnet Openwall GNU/*/Linux telnetd
At first I thought this was just a legit Knology.net DNS server or something, but using such outdated versions and freeware... I feel suspiciously like this is something else. Also, why in the world would knology allow remote access to their mainframe equipment? Seems that if it were ever breached it would be beyond terrible for the ISP...
Finally, why can't people not SSH into my box from the outside if I have MAC address filtering on? Anyone know anything about this or am I just being paranoid? I'm a noob, so knowing too little about all this is probably more the problem?
I come to Ubuntu with the notion that it is much more secure than Windows. In XP I had an anti-virus, third-party firewall and sundry softwares against spybots, rootkits etc. The anitivirus blocked the suspicious web pages while browsing. I generally avoided public networks, carrying a portable internet device Do I need similar stuff with Ubuntu.
I ran a chkrootkit scan and found this: The following suspicious files and directories were found: /usr/lib/pymodules/python2.6/.path /usr/lib/xulrunner-1.9.2.8/.autoreg /usr/lib/firefox 3.6.8/.autoreg /usr/lib/jvm/.java-6-openjdk.jinfo
I have suspicious requests in my haproxy logs from multiple sources to the same target. I could deny them in /etc/hosts.deny, but there are too many to keep track of. Is there a way to deny all requests to a specific target either in haproxy or through iptables?
Here's an example of the request: Apr 12 15:11:37 127.0.0.1 haproxy[28672]: 41.105.42.150:27072 [12/Apr/2011:15:11:37.315] web_servers frontend_farm/######## 3/0/1/1/169 404 1073 - - --NI 3/3/2/1/0 0/0 "GET /images/comment_icon.gif HTTP/1.1"
I've commented out my amazon instance id for security purposes. The request is for comment_icon.gif which does not exist. All requests go to that. The source IPs are from different countries as well. Blocking a certain country won't work either. Basically, if there was a way to send all requests for comment_icon.gif to /dev/null or something it would work.
I want to know if any one hacked or getting into my computer. I am using lucidlynx right now, My computer directly connected to modem, not using any wireless router. How can i check if some one hacked? How to prevent it?
I have a 6yo laptop...z60m. Solid little thing that I knocked around so much the hinge broke. My dad jerryrigged it so it can stay open.
So now I use it as a glorified DVD player. Then, around February the hard drive died. I put it in fresh, loaded a couple of regular games and the DVD modifications to play DVD's. So, besides the basic upgrade to 9.1 not much as been done.
Well, last week my panel disappeared. I procrastinated and last night I got on the computer. I did F2 and "xfce-panel" and my panel reappeared exactly how I'd last tweaked it.
With on exception. This blue globe, "Akonadi" had mysteriously appeared.
Thing is that I haven't installed or updated anything for 8 months...why? becuase I haven't had this thing connected to the Internet. The wireless tower has been on. (my bad) but all of the signigals in my neck of the wood are encripted so I just let it be.
I don't know where this program came from. Is it loaded in xubuntu? Why would it show up? And furthermore if there was someone with malicious intent (unfortunatly I do have to take that into consideration) have put this on for data collection?
I have windows computer and it is being hacked.About month ago or more some one hacked my router and install new firmware from Firmware Version: Talisman/Basic V1.2.9a
My router is linksys and SSID got changed to sveasoft.I had WPA set up and MAC filtering .
Some one hacked my router and change Firmware Version.And user name and password also got change to just admin.
Well now I got a pop up from my Kaspersky saying network attack scan.generic.TCP 74.63.245.168
only thing I can find on it http://whatismyipaddress.com/ip/74.63.245.168
It is Limestone Networks in Dallas.
Some strang things have been happing to my computer in past 4 months and is getting worse.
I have no firewall or router now.And have not gone to the store and get new router yet and I'm thinking of formatting my computer and putting linux and get good firewall like zone-alarm.
I am aware that there is a qmail-ldap package to have ldap back end for qmail. But I need only user authentication for qmail through ldap (not the backend; i.e still keeping Mysql as the database). I am pretty new to mail server configuration. I have just configured a (q)mail server (which is currently my sand box) and am able send and receive emails. I am planning to add ldap authentication (just that) to it. Can anyone point me to the right direction?
I had a serious breach of the cellular segment of my communications network this week. All I can say is nobody got hurt. The attackers also knew where to find me via email. I'm concerned that perhaps they've penetrated this aspect of my system as well, although they seemed pretty specifically focused on the phone. There have been no changes on anything on my computer, and of course, I went ahead and changed all the passwords. How can I verify or at least look into the possibility of having been hacked as well.
my computer has been surely hacked for at least more than two months; my private information are being hacked and spread around! I initally used Windows Vista and I had the firewall off and no antivirus software. When I realized that my OS had been hacked, I began turning my firewall on and installing security softwares, but nothing stopped the hack.
Yesterday, I erased all my partitions and installed Ubuntu 10.10. I installed rkhunter and a firewall. I changed my static IP adress, at least for the sake of knowledge, to another one, then I got disconnected since my router only allows my old IP.
When I'm about to write my admin password, I disconnect from the network. I've scanned my system using rkhunter, and the result is a list of 30 suspicious files!
Can I adjust my router in a way that it can allow any IP adress? If yes, can I have a non-static IP adress? How to prevent the hacking in the first place? However, I believe, I don't know yet, that my Ubuntu has also been hacked...
If I can't get rid of the hacker(s), then I should permanently disconnect from internet and find another way to receive information anonymously through the internet.
A scan on my computer reported as up many local ips which simply does not exist in my network. This host is supposed to have ip 192.168.0.4, but all other ip should not be there. I have a USB modem connected to a Linux box, connected itselfs to a wifi linksys router and thats it.
# nmap -sP '192.168.*.*' | grep -v down Starting nmap 3.81 ( http://www.insecure.org/nmap/ ) at 2010-11-18 21:46 CET Host 192.168.0.4 appears to be up. Host 192.168.7.27 appears to be up. Host 192.168.10.0 appears to be up.
I believe it is a keylogger because my Facebook account has been hacked, I believe my email has as well. I heard that even if you reformat a harddrive, the virus could still sit there and apparently that is what happened to me. how to be rid of it and keep my security. I installed RKhunter and Chkrootkit. Rkhunter reports warning files while checking my filesystem. I can post a log if need be.
I've discovered that after restoring my site's backup this has happened to me again. How to delete the hacked /home/crocbits directory so that I can restore the backup under the same username. When I try to delete /home/crocbits I get this message when logged in as root:
