The OpenCanary - HTTPPROXY Login Attempt rule is designed to detect unauthorized access attempts to the HTTPPROXY service running on an OpenCanary node. OpenCanary is a deception technology tool that creates various services to emulate a vulnerable environment and lure attackers. This specific rule triggers when the HTTPPROXY service logs a proxy attempt, indicating that a potential malicious actor is trying to use the proxy to access or manipulate other pages. The detection is based on a specific log type (7001) which logs relevant events related to HTTP proxy usage. This rule is critical as it falls under initial access and defense evasion techniques according to MITRE's ATT&CK framework. It can help organizations identify unauthorized attempts to leverage their proxy services for nefarious purposes, signaling a possible exploit or reconnaissance activity.