It started header injection or email injection attempts, by adding extra data into the headers and confusing the server processes.

Identification of Known Vulnerabilities: Attempts to exploit known vulnerabilities related to your server application.

This malicious IP was reported for trying to perform a Routed Attack, using the FTP server as a jump point to attack another system.

It was found that the IP has been exploiting zero-day vulnerabilities in our system.

The IP initiated SYN flooding attacks, aiming to disrupt service by overwhelming the server.

This IP belongs to Walmart.

The IP attempted to send emails from the Postfix server that violate the server's terms of service.

Rudimentary attempts were made by this IP to execute Man-in-the-Browser attacks.

This IP belongs to Home Depot.

This IP belongs to Fannie Mae.

It attempted to use the FTP server to distribute wireless cracking tools.

Excessive Subdomain Requests: A large number of requests for non-existing subdomains could suggest a subdomain takeover attempt.

It carried out key logging attempts, hoping to record keyboard inputs during SSH sessions.

This IP belongs to Kroger.

The IP actively participated in snowshoe spamming, spreading its spam output across many IPs and domains to avoid detection.

This IP was linked to an attempt at distributing malicious software within our system.

It attempted to perform a VOIP Hopper scan on the Asterisk server.

Command Injection in Requests: Logs indicate HTTP requests with Unix or Windows command-line instructions.

It was discovered using our server in an open relay configuration, sending emails from unauthorized domains.

This IP belongs to Amazon.

Incriminating activities involving the distribution of trojan horses were linked to this IP address.

The IP attempted to register as an Asterisk user with no password.

This IP belongs to Walmart.

The IP sent malicious links via IM softwares, aiming to spread instant messaging worms.

The IP engaged in a mail relay attack, using our server to send spam.