How to Identify and Avoid Malicious EXE Files on Windows PC

You will learn here how to identify and prevent malicious EXE files from being installed and damaging your Windows PC. First of all, we must say that files with the .EXE extension are “executable” in the Windows operating system. They contain instructions that the computer follows to perform tasks, such as opening or installing a program or starting a process.

For example, when you open your internet browser or a text editor, it is an .exe file that is being executed. Despite their usefulness, .EXE files can be used to distribute malicious programs, such as spyware, ransomware or other types of malware.

Discover the main types of malicious programs:

1. Malware

General term to describe any software designed to cause damage, steal information, or compromise system security. Includes viruses, trojans, worms and others.

2.Spyware

It is a type of malware that monitors user activities without their consent. It may collect personal information, such as passwords, banking details or browsing history, and send it to third parties.

3.Ransomware

This type of malware blocks access to the system or important files, demanding a payment (usually in cryptocurrencies) to restore access. It is widely used in attacks against companies and individuals.

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How to Identify and Avoid Malicious EXE Files on Windows PC

1. Check the origin:

Only download files from trusted sources, such as official developer websites or app stores. Avoid downloads from unknown or suspicious websites.

2. Read the name and description:

Generic or strange names, such as “update123.exe” or “freegame.exe”, may be signs of malicious files.

3. Examine the digital signature:

Many legitimate programs have digital signatures that confirm their authenticity. Right click on the .EXE file, go to “Properties” > “Digital Signatures” to check if there is a valid signature.

4. Use an antivirus:

Before opening the file, run a scan with antivirus software. Most modern antiviruses can detect known threats.

5. Use online analytics tools:

Services like VirusTotal allow you to submit suspicious files for analysis. They check the file with various security mechanisms.

6. Be wary of unusual behavior:

.EXE files that ask for excessive permissions or that attempt to perform unexpected tasks can be dangerous.

7. Check the file size:

Very small or surprisingly large files, outside the expected standard for the type of program, may be suspicious.

What is the best antivirus for those who download multiple times?

If you tend to download a lot, a robust and efficient antivirus is essential. The best antivirus for this user profile are:

Bitdefender Total Security:

• Excellent real-time malware detection;
• ○ Protection against dangerous downloads and malicious links;
• ○ Quick check system for downloaded files.

Kaspersky Internet Security:

• High threat detection rate;
• ○ Advanced tools for scanning downloads and protecting against spyware;
• ○ Additional features like built-in VPN to secure browsing.

Norton 360:

• One of the most complete, with real-time protection against ransomware and spyware;
• ○ Automatic monitoring of downloaded files;
• ○ Includes cloud backup to protect your data in case of infection.

McAfee Total Protection:

• Ideal for those who download a lot of files, offering automated protection;
• ○ Includes automatic scans of download folders;
• ○ Strong firewall feature to prevent attacks.

Avast Premium Security:

• Popular and easy to use;
• ○ Quickly detect threats in downloads;
• ○ Additional protection against malicious links in emails and websites.

Prevention and good practices

● Keep your operating system and programs up to date: Updates fix vulnerabilities that could be exploited by malware;

● Make regular backups: In the case of ransomware attacks, having backups ensures that you will not lose important data;

● Educate yourself and be careful when clicking: Emails, links and messages with suspicious attachments are common sources of infection.

By using a reliable antivirus and proper security practices, you can minimize the risks when downloading and running .EXE files.