Kalley, a network administrator of an organization, has installed a traffic monitoring system to capture and report suspicious traffic signatures. In…

Unauthorized access signatures were identified by Kalley through the installed monitoring system.

Unauthorized access signatures are designed to detect attempts to gain unauthorized access to a

system or network by exploiting vulnerabilities, misconfigurations, or weak credentials. Password

cracking, sniffing, and brute-forcing are common techniques used by attackers to obtain or guess the

passwords of legitimate users or administrators and gain access to their accounts or privileges. These

techniques generate suspicious traffic patterns that can be detected by traffic monitoring systems,

such as Snort, using signature-based detection. Signature-based detection is based on the premise

that abnormal or malicious network traffic fits a distinct pattern, whereas normal or benign traffic

does not. Therefore, by installing a traffic monitoring system and capturing and reporting suspicious

traffic signatures, Kalley can identify and prevent unauthorized access attempts and protect the

security of her organization’s network. Reference:

Network Defense Essentials Courseware, EC-Council, 2020, pp. 3-33 to 3-34

Detecting Suspicious Traffic via Signatures - Intrusion Detection with Snort, O’Reilly, 2003

Threat Signature Categories - Palo Alto Networks, Palo Alto Networks, 2020