Which of the following applications is an example of a data-sending Trojan?

SubSeven (Sub7) is a Remote Access Trojan that gives an attacker full interactive remote control over the victim machine, not primarily designed to exfiltrate and send data logs.

Senna Spy Generator is a Trojan-builder utility used to create custom Trojans, and is itself a creation tool rather than an active data-sending Trojan.

Firekiller 2000 is a security-software-killer Trojan designed to terminate antivirus and firewall processes on the target, not to capture or transmit user data.

eBlaster is a data-sending Trojan that covertly records keystrokes, emails, websites visited, and chat messages on the infected system, then automatically forwards these logs to a predefined email address. It runs hidden in the background without alerting the victim. This behavior - collecting and transmitting stolen data to a remote party - is the defining characteristic of the data-sending Trojan category.