Trace php spamming

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How to locate php script that is being used for sending spam from your mail server (postfix or sendmail)

Locate your working php.ini file

php -i | grep 'Configuration File'

Append the following lines to php.ini

mail.add_x_header = On
mail.log = /var/log/php-mail.log

Create log file:

touch /var/log/php-mail.log
chmod 777 /var/log/php-mail.log

Restart Apache

service httpd restart

Watch log live:

tail -f /var/log/php-mail.log

Also sometimes you'll face spawning and immediately defunc processes that may send email . You can try to find details for such cases using command like:

ll /proc/$(ps aux | grep bounce | awk '{print$2}')


ll /proc/$(ps aux | grep <PROCESSNAME> | awk '{print$2}')