1. 恐吓软件：
恐吓软件是一种恶意软件，它伪装成合法的计算机安全软件，并声称可以检测受影响计算机上实际上并不存在的各种威胁。然后，用户会被告知他们必须购买恐吓软件才能修复他们的计算机，并且会收到咄咄逼人的弹出通知，直到他们提供信用卡号并为毫无价值的恐吓软件产品支付所需的金额。
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。
恐吓软件和病毒的区别：
| S.No. | Scareware | Virus |
|---|---|---|
| 1. | Scareware is a tool to help fix your system but when the software is executed it will infect your system or completely destroy it. | A Virus is a malicious executable code attached to another executable file which can be harmless or can modify or delete data. |
| 2. | It is less harmful as compared. | It is more harmful. |
| 3. | Scareware can be detected in browser by pop up notification and removed by the Antivirus and firewall. | Antivirus software are used for protection against viruses. |
| 4. | It give unauthorized access and control of the system to the hackers. | It can control data and resources, cause error, destroy system and slow down the performance. |
| 5. | Scareware is one of the type of malware. | Virus is one of the type of malware. |
| 6. | It displays windows- style popups. | It displays a software. |
| 7. | In this, user should immediately close the browser. | In this, user should restore the PC to gain access. |
| 8. | DriveCleaner, WinAntivirus, ErrorSafe, WinFixer and XP Antivirus are some of the examples of scareware. | Resident and Non -resident viruses are two types of Virus. |