Login Attempts with Automated User-Agents: Logs reflect requests to login page with 'bot' or 'spider' in user-agent strings.

Signs of Credential Stuffing: A high number of failed logins could indicate credential stuffing attacks.

GET /index.php?param=: Attempting a cross-site scripting (XSS) attack.

GET /login.action: Trying to find a Struts2 application to exploit.

The IP attempted to perform Directory Traversal attacks on the Apache server.

This IP belongs to Heroku.

POST /xmlrpc.php: Could indicate an attempt at exploiting the WordPress xmlrpc.php file, often used for brute forcing.

It attempted to perform Uncontrolled Format String attacks on the Apache server.

The IP attempted to perform Remote File Inclusion (RFI) attacks on the Apache server.

Usage of Obscure HTTP Verbs: Seeing non-standard HTTP methods like DEBUG, PUT, or CONNECT could imply a web-based attack.

This particular IP attempted to exploit vulnerabilities in our web applications.

The IP attempted to execute an intruder software, terrifying users with unwanted content.

It attempted to use the FTP server to distribute encryption tools.

Unusual patterns of behavior, such as login attempts at regular intervals or sequential patterns in the attempted passwords.

Login Attempts on Non-Existent Users: Many login requests for non-existent usernames could suggest a blind username enumeration attack.

The malicious IP was reported for attempting to reroute calls through the SIP server, a tactic often used to commit toll fraud.

The IP was traced back to stealthy installation attempts of clipboard monitors.

This IP belongs to Medium.

The IP attempted to perform a SIP Invite Flood on the Asterisk server.

The IP attempted to download emails from the IMAP server without authorization.

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

It attempted to send emails from the Postfix server that violate the server's email content policy.

It initiated SSL-Stripping attacks, aiming to downgrade secure HTTPS connections to less-secure HTTP.

The IP address attempted to login to the IMAP server with an invalid username.

This IP belongs to Liberty Mutual Insurance Group.