A computer virus is a type of malicious software (malware) designed to replicate itself and spread from one system to another, often causing harm along the way.
How It Works
- Self-replication: Like a biological virus, it attaches to a host file or program and duplicates itself.
- Activation: It typically activates when the infected file or program is run.
- Spread: It can spread via email attachments, infected websites, USB drives, or network connections.
What It Can Do
- Corrupt or delete files.
- Slow down system performance.
- Steal sensitive data.
- Display unwanted messages or pop-ups.
- Crash systems or render them unusable.
Common Types
| Type | Behavior |
|---|---|
| Boot Sector Virus | Infects the master boot record; activates when the system starts |
| File Infector | Attaches to executable files (.exe, .com) |
| Macro Virus | Targets documents with macros (e.g., Word or Excel files) |
| Polymorphic Virus | Changes its code to evade detection |
| Multipartite Virus | Infects multiple parts of a system simultaneously |
Prevention Tips
- Avoid clicking on suspicious links or attachments.
- Back up your data regularly.
- Be cautious with downloads and file sharing.
If you have any questions or issues, contact Technology Support Services
419-434-4357