Dropper

Dropper is a type of malicious computer software whose primary purpose is to install a secondary, harmful payload onto a user’s computer system. Droppers are typically used to distribute malware such as viruses, worms, Trojans, and other malicious programs.

A dropper typically works by first establishing a foothold into a user’s computer system. It may do this by using social engineering techniques to trick the user into downloading a malicious file (often disguised as legitimate software), or it may exploit a vulnerability in the user system to gain unauthorized access. Once a dropper has established a foothold it is free to install a secondary, malicious payload. This payload could be anything from ransomware, keyloggers, rootkits, or any other type of malicious software.

Because droppers allow an attacker to silently install malware on a user’s system they are a common type of malware used in attacks. Anti-virus and other security software typically will not detect droppers, which is why it is important for users to keep their computer systems updated with the latest security patches in order to protect themselves from these types of attacks. Additionally, users should avoid visiting suspicious websites and downloading untrusted files in order to minimize the risk of falling victim to a dropper attack.