The reason that viruses and Trojans are mostly made into dynamic library forms

The dynamic library shorthand for the dynamic library under Windows is DLL (Dynamic Linkable Library), which is an executable file, but it is different from EXE file.

DLLs cannot run independently, but wait to be called.

DLL can not view the source code after compilation, which plays a role in protecting the copyright of software authors.

Since the DLL file itself is not operational, it needs to be implemented through application calls, so even if the DLL is running, we will not see

DLL's process (the system is attributing the DLL to the process that called it). However, DLL files are actually being used, so they cannot be deleted. For extremely demanding concealment

Sex and anti-delete virus Trojan This is very effective a catch means, plus the DLL also has a small footprint, easy to edit features, so nowadays many popular virus Trojan

The main files are in DLL format.

The reason that viruses and Trojans are mostly made into dynamic library forms