Computer Viruses

Summary

Computer viruses are malicious software programs designed to replicate and spread by infecting files or systems, causing damage, data loss, or unauthorized control.

Key Characteristics

• Self-replicating code that attaches to legitimate programs or files
• Propagation through file sharing, email attachments, or removable media
• Can corrupt, delete, or encrypt data, or disrupt system operations
• Often designed to evade detection by antivirus software
• May include payloads that perform harmful actions or open backdoors

Defensive Controls

• Regularly updated antivirus and anti-malware solutions
• Application whitelisting and execution control
• User education on safe email and file handling practices
• System and software patch management
• Network segmentation and monitoring for unusual activity

Related Security Solutions

Endpoint protection platforms, antivirus software, intrusion detection and prevention systems (IDPS), email security gateways, and security information and event management (SIEM) tools help detect, prevent, and respond to computer virus infections.