Dropper
A Dropper is a type of malicious software (malware) that is designed to penetrate user systems without the user’s knowledge. These types of malicious software inserts itself into the user’s operating system and alters applications and settings to steal information and control the user’s system. Droppers are often used to deliver other types of malware, such as keyloggers, spyware, and ransomware, onto the user’s system.
Droppers generally operate in phases that start with an initial “load module” which is responsible for installing the trojan horse into the victim’s system. The second phase is the “unpacking stage” where the trojan horse component is activated. The “dropped” file is then executed, installing additional components and malicious payloads onto the user’s system.
Due to its advanced capabilities, droppers are difficult to detect due to their ability to disguise their codes by using techniques such as code-obfuscation, polymorphism, and code-packing. Therefore, a user can become vulnerable to a dropper attack even if they have antivirus software installed on their computer.
To detect and prevent dropper attacks, users should ensure their system is always up to date with security patches, use a reliable antivirus program, and install additional security software such as a firewall and anti-malware programs. Additionally, users should exercise caution when downloading files from untrusted sources, particularly if they have been sent as an email attachment.
