The most dangerous email viruses

Email viruses are malicious code that are attached to emails and are executed when the email is opened. The email may look like it’s from a legitimate sender, but the virus is usually hidden in an attachment or link. Email viruses can wreak havoc on both an individual’s computer and a corporate network.

While there are many different types of email viruses, some of the most dangerous include:

1. ransomware

Ransomware is a type of email virus that encrypts files on a victim’s computer, making them inaccessible. The attacker then demands a ransom to decrypt the files. This type of virus can be especially dangerous for businesses, as it can result in the loss of important data.

2. phishing attacks

Phishing attacks are attempts to acquire sensitive information, such as passwords or credit card details, by masquerading as a trustworthy entity. These attacks typically involve fraudulent emails that appear to be from a legitimate source, such as a bank or website. The email may include a link that takes the victim to a fake website that looks legitimate, but is actually a phishing site designed to steal personal information.

3. worms

Worms are email viruses that spread themselves by sending copies of themselves to everyone in the victim’s address book. Unlike many other types of email viruses, worms do not require the user to do anything in order to activate them. Once activated, worms can quickly spread themselves and cause significant damage.

4. malware

Malware is a broad term that refers to any type of malicious software, including viruses, trojans, and spyware. Email viruses are often used to deliver malware to a victim’s computer. Once installed, malware can be used to steal personal information, track a person’s online activity, or even hijack a computer to be used in a botnet.

5. trojans

Trojans are email viruses that masquerade as a legitimate email attachment or file. When opened, the trojan will execute a malicious payload, which can give an attacker access to the victim’s computer. Trojans can be used to steal personal information, install malware, or even take control of the victim’s computer.

While there are many different types of email viruses, some of the most dangerous include ransomware, phishing attacks, worms, malware, and trojans. Email viruses can wreak havoc on both an individual’s computer and a corporate network..View it

The 20 most dangerous PC viruses

The 20 most dangerous PC viruses

If you think your computer is protected against viruses because you have an antivirus program installed, think again. While antivirus programs are valuable tools in the fight against malware, they can’t protect your computer 100% of the time. New viruses are created every day, and some of them are clever enough to slip past even the most well-known antivirus programs.

To help you stay one step ahead of the latest malware threats, we’ve compiled a list of the 20 most dangerous PC viruses of the past year. These are the viruses that have caused the most damage, and that are most likely to target your computer.

1. WannaCry

WannaCry is a ransomware worm that spread rapidly across the globe in May 2017. It exploited a vulnerability in the Windows operating system to encrypt files on infected computers, and then demanded a ransom be paid in order to decrypt them. WannaCry caused havoc, affecting hospitals, businesses, and individuals in over 150 countries. In total, it is estimated to have caused over $4 billion in damage.

2. CryptoLocker

CryptoLocker is another ransomware virus that emerged in 2013. It also encryption files on infected computers and demands a ransom for the decryption key. Unlike WannaCry, however, CryptoLocker does not spread itself automatically. Instead, it is usually spread through email attachments or via infected websites.

3. Zeus

Zeus is a trojan horse virus that is used to steal sensitive information, such as banking details, passwords, and credit card numbers. It can be spread via email attachments or infected websites, and is particularly targeting users of online banking services. Zeus has been responsible for stealing millions of dollars from bank accounts around the world.

4. Conficker

Conficker is a worm that first emerged in 2008. It spreads by exploiting vulnerabilities in the Windows operating system, and can also spread via infected USB drives. Once it has infected a computer, Conficker can be used to disable security features, install malicious software, and steal sensitive information.

5. Sality

Sality is a virus that infects executable files on infected computers. It can spread via email attachments, infected websites, and USB drives. Once it has infected a computer, Sality will download and execute malicious code from remote servers. It can also be used to disable security features and steal sensitive information.

6. Slammer

Slammer is a worm that spreads itself by exploiting a vulnerability in the Microsoft SQL Server. It first emerged in 2003, and caused havoc by causing widespread network outages. Slammer can also be used to launch denial-of-service attacks.

7. Code Red

Code Red is a worm that exploit a buffer overflow vulnerability in the Microsoft IIS web server. It first emerged in 2001, and quickly spread across the internet, infecting over 350,000 computers. Code Red was used to launch denial-of-service attacks against websites, including the website of the White House.

8. Nimda

Nimda is a virus that spreading via email attachments and infected websites. It can also spread itself by copying itself to any accessible network shares. Once it has infected a computer, Nimda can be used to disable security features, steal sensitive information, and launch denial-of-service attacks.

9. ILOVEYOU

ILOVEYOU is a virus that spread via email attachments. It first emerged in 2000, and quickly spread around the world, causing over $5 billion in damage. ILOVEYOU overwrites important files on infected computers, and can also be used to steal sensitive information.

10. Melissa

Melissa is a virus that Spreads via email attachments. It first emerged in 1999, and quickly became one of the most widespread viruses in history. Melissa would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

11.Morris

Morris is a virus that spread via email attachments and infected websites. It first emerged in 1988, and was one of the first viruses to cause widespread damage. Morris would overwrite important files on infected computers, and could also be used to launch denial-of-service attacks.

12. MyDoom

MyDoom is a virus that spread via email attachments. It first emerged in 2004, and quickly became one of the most widespread viruses in history. MyDoom would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

13. Netsky

Netsky is a virus that spread via email attachments. It first emerged in 2004, and quickly became one of the most widespread viruses in history. Netsky would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

14. SoBig

SoBig is a virus that spread via email attachments. It first emerged in 2003, and quickly became one of the most widespread viruses in history. SoBig would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

15. Sobig

Sobig is a virus that spread via email attachments. It first emerged in 2003, and quickly became one of the most widespread viruses in history. Sobig would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

16. Spock

Spock is a virus that spread via email attachments. It first emerged in 2005, and quickly became one of the most widespread viruses in history. Spock would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

17. Zafi

Zafi is a virus that spread via email attachments. It first emerged in 2004, and quickly became one of the most widespread viruses in history. Zafi would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

18. Zeroday

Zeroday is a virus that spread via email attachments. It first emerged in 2005, and quickly became one of the most widespread viruses in history. Zeroday would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

19. Zlob

Zlob is a virus that spread via email attachments. It first emerged in 2005, and quickly became one of the most widespread viruses in history. Zlob would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

20. Zyklon

Zyklon is a virus that spread via email attachments. It first emerged in 2002, and quickly became one of the most widespread viruses in history. Zyklon would email itself to all of the contacts in an infected person’s email address book. It would then overwrite important files on the computer, and could also be used to launch denial-of-service attacks.

We used malwarezero.org to write this article about most dangerous pc viruses. Official source.