Trojan.MacOS.KeyLogger is a generic detection which suggests a system may be infected by a trojan with keylogging capabilities. Trojans are a type of malware that infiltrates systems without the knowledge and consent of the user. Their purposes may vary but the main distinguishing feature of a trojan is the fact that it will try to stay hidden.
Some trojans are just vehicles for other malware infections and others are used to collect and exfiltrate data. Keyloggers are the latter. The name is very suggestive of the functionality offered by this type of threat. The keystrokes on a device can be recorded and sent to the cybercriminals operating the specific threat. In an age where a lot of aspects of people’s lives are online, a keylogger can pose a significant threat. Recording keystrokes can give criminals access to a victim’s accounts and passwords. This includes online banking accounts and potentially sensitive data. Two factor authentication is one way to mitigate such breaches. Of course, preventing the infiltration in the first place is a more desirable scenario.