Trojan.MacOS.Dropper

Trojan.MacOS.Dropper is a generic name for the dropper components of trojans. The purpose of a trojan is to infect the victim’s system without getting detected or raise any suspicion. Once it achieves that, there are various functions the trojan can have:

• Exfiltrate data (passwords, contacts, etc.)
• Install or enable the installation of other malware
• Record the victims activities
• Make the victim’s machine a part of a botnet
• Disrupt workflow

The dropper component is usually one which "drops" the payload. The payload is usually more harmful malware that would be more difficult to get in without getting detected.

The most common ways for trojans to infect a system include spam email campaigns with malicious attachments, fake updates for already installed software, compromised websites and freeware bundles. While the manual removal of trojans can be tricky and usually requires a skilled user, reputable security solutions will easily prevent an infection or remove one after the fact.