A computer virus infects a system by sneaking in through a vulnerable entry point and then replicating itself—just like biological viruses, but in code.
How It Gets In
Viruses usually need a user to unknowingly trigger them. Here are the most common infection routes:
- Email attachments: Opening a file from a suspicious or unexpected email can activate a virus.
- Malicious downloads: Downloading software, games, or media from untrusted sources can introduce hidden viruses.
- Removable media: Plugging in infected USB drives or external hard drives can transfer viruses.
- Fake pop-ups or ads: Clicking deceptive ads or “Your PC is infected!” warnings can install malware.
- Pirated content: Illegally downloaded movies, music, or software often carry hidden threats.
- Unpatched software: Outdated apps or operating systems can have vulnerabilities that viruses exploit.
What Happens Next
Once inside, the virus:
- Executes its code: Often by attaching to a legitimate program or file.
- Replicates itself: Spreads to other files, drives, or even across networks.
- Causes damage: This can range from slowing down your system to stealing data or corrupting files.
How to Stay Safe
- Keep your antivirus software updated.
- Avoid clicking on suspicious links or attachments.
- Only download from trusted sources.
- Regularly update your operating system and apps.
- Use firewalls and multi-factor authentication.
If you have any questions or issues, contact Technology Support Services
419-434-4357