1. 根工具包：
Rootkit 是一组应用程序，是一种恶意软件，旨在感染目标 PC 并允许攻击者安装一组工具，授予他对计算机的持久远程访问权限。恶意软件通常将自己伪装成“隐藏在视线中”的普通文件，因此您的防病毒软件会忽略它们。它支持对计算机或计算机网络的管理员级别访问。其动机是从您的计算机中窃取身份信息，通常是为了获得对系统的控制权。很难检测和去除，需要专门的工具去除。
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。
Rootkit 和病毒的区别：
| S.No. | ROOTKIT | VIRUS |
|---|---|---|
| 1. | Rootkit is set of malicious program that enables administrator-level access to a computer 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 rootkit is to steal the identity information, often to gain control of a system. | The main objective of virus is to modify the information. |
| 3. | Detecting and removing a rootkit is a complex process and typically requires the use of specialized tools. | Antivirus software are used for protection against viruses. |
| 4. | Rootkit is one of the type of malware. | Virus is one of the type of malware. |
| 5. | It give unauthorized access and control of the system to the attacker. | It can control data and resources, cause error, destroy system and slow down the performance. |
| 6. | It is more harmful. | It is less harmful as compared. |
| 7. | TDSS, ZeroAccess, Alureon and Necurs are some of the common rootkit. | Resident and Non -resident viruses are two types of Virus. |