ISO file cannot be infected by virus
The infect your computer by being undetected by your anti virus and posing as a harmless file.
File Viruses infect applications. These viruses usually infect COM and/or EXE programs, though some can infect any program for which execution or interpretation is requested, such as SYS, OVL, OBJ, PRG, MNU and BAT files. System Sector Viruses infect executable code found in certain system areas on a disk. Macro Virus a program or code segment written in the internal macro language of an application and attached to a document file (such as Word or Excel).
A multipartite virus is designed to infect multiple file types in an effort to fool antivirus software
Computer viruses can infect a file much like a Biological virus can infect a cell, they then spread from file to file or cell to cell.
opening an email attachment downloading stuff from the internet
Viruses are malicious software (malware) in which their sole purpose is to replicate and infect non-infected computers. Their are many mediums to which a virus can infect a computer, most commonly through the internet and email attachments. When viruses infect a computer, it attaches itself to a "host" file (hence the name virus because it acts like a real world virus). Next, it injects its code into the host file so that whenever that infected file is run, the virus executes first and then the actual file starts. The "payload" is the official term to the effects a computer virus has on a PC.
Viruses are malicious software (malware) in which their sole purpose is to replicate and infect non-infected computers. Their are many mediums to which a virus can infect a computer, most commonly through the Internet and email attachments. When viruses infect a computer, it attaches itself to a "host" file (hence the name virus because it acts like a real world virus). Next, it injects its code into the host file so that whenever that infected file is run, the virus executes first and then the actual file starts. The "payload" is the official term to the effects a computer virus has on a PC.
Notepad.exe or any other exe file.
Only if you download the file the virus is in. So viewing pictures in gmail is not a threat downloading attatchments is
macro-virus
Macro-virus
A file system allows the operating system to store and organize files on a hard disk.