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

The IP maliciously used packet sniffers in attempts to decode SSH traffic.

It sent unusually large Asterisk packets, potentially indicating a buffer overflow attempt.

The IP attempted the notorious Shellshock vulnerability, which could pose a severe threat to our server's resources.

The IP was actively seeking unpatched SSH software in hope of finding exploitable vulnerabilities.

Unusual TCP/IP Headers: Logs reflect HTTP requests with unusual or altered TCP/IP headers, an attempt to confuse or slip through security measures.

The malicious IP was reported for attempting unauthorized logins to the FTP server, potentially to gain access to sensitive files.

It tried cookie theft, attempting to steal session data of a legit email user which can be misused to hijack the session.

It attempted to use the Postfix server to relay spam to other servers.

This IP address from an unusual location has successfully installed malware on our servers.

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

This IP belongs to Pinterest.

Several phishing emails have been traced back to this suspicious IP address.

The IP was involved in a brute force attack on the FTP server, systematically guessing usernames and passwords to gain unauthorized access.

Multiple login attempts with slight variations in the password, suggesting a dictionary attack, a type of brute force attack.

The IP was involved in a Caller ID Spoofing attack, falsifying the caller ID to deceive the receiver or hide the caller's identity.

HEAD /: May be part of a larger Reconnaissance.

This IP belongs to Mondelez International.

It attempted to exploit known vulnerabilities in the Mail protocol.

The IP tried to crack S/MIME encryption for accessing secured email contents.

This IP belongs to DuPont de Nemours.

This IP belongs to Apple.

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

This IP belongs to PepsiCo.

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