- Computer Networking Basics
- Computer Networking Home
- Application of Networks
- Sharing through Network
- Access to Remote Database
- Communication Facilities
- Evolution of Networking
- Arpanet
- Internet
- Interspace
- Elementary Terminology
- Nodes (Workstations)
- Server
- Network Interface Unit
- Network Switch Technique
- Network Switch Technique
- Circuit Switching
- Message Switching
- Packet Switching
- Network Transmission Media
- Network Transmission Media
- Twisted Pair Cable
- Coaxial Cable
- Optical Fibers
- Guided Media Compared
- Microwave
- Radio Wave
- Satellite Microwave
- Infrared
- Laser
- Data Communication Terms
- Data Communication Terms
- Data Channel
- Baud
- Bits Per Second
- Bandwidth
- Data Transfer Rates
- Types of Networks
- Types of Networks
- LAN
- MAN
- WAN
- PAN
- Network Topologies
- Network Topologies
- Point-To-Point Link
- Star Topology
- Bus Topology
- Ring Topology
- Tree Topology
- Graph Topology
- Mesh Topology
- Fully Connected
- Network Devices
- Network Devices
- Modem
- RJ-45
- Ethernet Card
- Hub
- Switch
- Repeater
- Bridge
- Router
- Gateway
- LAN Design
- LAN Design
- Network Components Checklists
- Communication Protocols
- Communication Protocols
- Hypertext Transfer Protocol
- File Transfer Protocol
- TCP/IP
- SLIP/PPP
- Mobile Computing
- Mobile Computing
- GSM
- CDMA
- WLL
- GPRS
- 1G, 2G, 3G, 4G
- 3G and EDGE
- 4G and LTE
- SMS
- Chat
- Video Conferencing
- VoIP
- Wi-Fi
- Wi-Fi Hotspots
- WiMax
- Internetw Term & Concept
- Internetw Term & Concept
- World Wide Web
- Telnet
- Web Browser and Server
- Web Sites and Addresses
- URL and Domain Names
- Web Hosting
- Web 2.0
- WebScripting
- Open Source Software
- Open Source Software
- OSS and FLOSS
- GNU
- FSF
- OSI
- W3C
- Proprietary Software
- Freeware Software
- Shareware Software
- Network Security
- Network Security
- Cookies
- Hackers and Crackers
- CyberLaw
- Cyber Crimes
- Intellectual Property Rights
- Viruses
- Viruses
- How Computer Virus Spread ?
- Damage that Viruses Cause
- Trojan Horses
- Worms
- Spam
- Virus Prevention
- Give Online Test
- All Test List
- Networking Test
How Computer Virus Spread
Computer viruses spread from computer to computer just by attaching themselves to files or boot records of disks and diskettes.
These days viruses is not uncommon to find them in e-mail attachments and other programs that can be downloaded from the Internet.
A virus is a relatively passive agent that can travel from one file to another file on the same computer if the infected file is executed, from computer memory to a file on disk, on a disk that is carried from one computer to another (some companies prohibit floppy drives, thereby preventing users from copying information onto their computers), on e-mail attachment executable files, and over a modem or network connection.
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