Malware can fall into many categories including ransomware, spyware, scareware, adware, crimeware, viruses and includes various delivery vectors including worms, Trojans, backdoors, and root-kits. However, the most common form of malware is actually not malware itself, but rather a combination of different techniques specifically tailored to a target; this is called Hybrid Malware.
Hybrid malware, also known as combo malware, is a combination of two or more different types of attacks. Malicious actors can combine multiple attack techniques to not only gain entry into a system, but once inside, install malevolent code or steal data. Unlike traditional malware, hybrid malware utilizes the advantages of each disparate building block (e.g., worms, viruses, spyware or Trojans). Actors can combine, for example, a Trojan and spyware to more easily download spyware onto a targets computer.
Not only is Hybrid malware able to exploit considerably tight defense systems, there is no need for actors to write new code for every aspect of the hybrid malware. Instead, attackers can borrow code from the already-existing malware specimens and integrate this code into their latest wares (Source).
Because hybrid malware can preform sophisticated attacks, it requires equally as sophisticated defense systems and techniques to detect and defend from attacks. Some of the best practices include:
Educate your employees about common malware types and how those types can collectively form hybrid malware. Avoid clicking on unusual or unwanted links. Do not download unknown files, and never torrent files or visit questionable sites (Source)
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