COMPUTER FUNDAMENTALS

Detailed explanation-1: -Some executable file types can run on any compatible system without requiring the existence of another program. These files are considered to pose a high security risk. They include EXE, BAT, COM, CMD, INF, IPA, OSX, PIF, RUN and WSH. With Windows, EXE is the file extension for an executable file.

Detailed explanation-2: -An .exe file can be a virus, but that is certainly not true for all of them. In fact, the majority are safe to use or even necessary for your Windows system to run. It all depends on what is in an .exe file. Basically .exe files are programs that have been translated into machine code (compiled).

Detailed explanation-3: -Types of computer viruses. File infectors. Some file infector viruses attach themselves to program files, usually selected COM or EXE files. Others can infect any program for which execution is requested, including SYS, OVL, PRG and MNU files.

Detailed explanation-4: -Direct Action Virus – When a virus attaches itself directly to a .exe or .com file and enters the device while its execution is called a Direct Action Virus. If it gets installed in the memory, it keeps itself hidden. It is also known as Non-Resident Virus.

Detailed explanation-5: -ZIP and RAR Files. Cybercriminals love to hide malware in files. Microsoft Office Documents. PDF Files. IMG and ISO Disk Images.