1. 蠕虫：
蠕虫类似于病毒，但它不会修改程序。它越来越多地自我复制，导致计算机系统变慢。蠕虫可以通过远程控制。蠕虫的主要目标是吃系统资源。
2. 病毒：
病毒是附加到另一个可执行文件的恶意可执行代码，它可以是无害的，也可以修改或删除数据。当计算机程序运行时带有病毒，它会执行一些操作，例如从计算机系统中删除文件。远程控制不了病毒。
蠕虫和病毒的区别：
| S.No. | WORMS | VIRUS |
|---|---|---|
| 1. | A Worm is a form of malware that replicates itself and can spread to different computers via Network. | A Virus is a malicious executable code attached to another executable file which can be harmless or can modify or delete data. |
| 2. | The main objective of worms to eat the system resources. | The main objective of virus is to modify the information. |
| 3. | It doesn’t need a host to replicate from one computer to another. | It require host is needed for spreading. |
| 4. | It is less harmful as compared. | It is more harmful. |
| 5. | Worms can be detected and removed by the Antivirus and firewall. | Antivirus software are used for protection against viruses. |
| 6. | Worms can be controlled by remote. | Virus can’t be controlled by remote. |
| 7. | Worms are executed via weaknesses in system. |
Viruses are executed via executable files. |
| 8. | Morris Worm, Storm Worm and SQL Slammer are some of the examples of worms. | Resident and Non -resident viruses are two types of Virus. |
| 9. | It does not needs human action to replicate. | It needs human action to replicate. |
| 10. | Its spreading speed is faster. | Its spreading speed is slower as compared. |