Analysis of 1.3M Emails Unveils Hidden Threats Missed by Other Email Security Solutions
Analysis of 1.3M Emails Unveils Hidden Threats Missed by Other Email Security Solutions
What Are Email Viruses, And How Do You Protect Yourself From Them?

What Are Email Viruses, And How Do You Protect Yourself From Them?

A computer virus is a malicious software that spreads from one computer to another through email messages. Malicious code can launch in several ways: clicking on a link within an email message, opening a rogue file attachment, or replying to the sender.

Malicious threats through email messages are often spread by sending them to every person on the original victim’s contact list.

A computer virus is malicious software that replicates itself without permission and spreads from one computer to another. The virus can replicate itself, so it could quickly spread from one device to another. A virus can not only infect a person’s computer remotely, but it could also infect other computers of people who share the same virtual environment.

Types of email viruses

Email viruses can take many different forms:

Spam email: Unwanted email messages, often containing malware. Many spam emails include a contest for a free car to a notification you inherited a million dollars.

Boot sector virus: This virus targets the device’s master boot record.

A multipartite virus: Simultaneously attack both the executable files and the boot sector of a computer.

Resident virus: A resident virus immediately installs itself on the victim’s computer when they click on an infected email. Even if the primary virus source is removed, the virus persists in the system and is, therefore, difficult to resolve.

Virus Hoax: A message contains a false warning about a fictitious threat and usually instructs the recipient to forward the notification to all their friends.

Macro viruses are written in a macro language used by other software programs, especially Microsoft Excel and Microsoft Word.

Spambots: Programs gather email addresses from websites to build mailing lists for spamming. They are not generally sent through email, but they are instrumental in collecting email addresses spread through email viruses.

Viruses downloaded from user-generated websites account for up to five million attacks per day. Viruses can cause millions of dollars in damage.

Many email viruses are disguised as messages from friends, colleagues, and internet service providers. You shouldn’t open these messages because they could be fake email attachments. Scan any files attached to an email for malware.

How Does Malware Work

Malware is introduced into a computer, network, or another device when the user clicks on a malicious link hackers send or downloads a malicious program. The user may download the software coming from a malicious actor from the internet, or they may activate it from a malicious message that looks like coming from a legitimate source. As soon as the victim clicks on the malicious link or downloads the file attachment in the email, the malware starts running, seeking a software vulnerability or attempting unexpected actions that the user cannot predict. It could result in the following steps:

The virus from the email attachment replicates itself in several places in the infected file system, making it difficult to eradicate every instance.

  • Invasion of desktops and browsers with multiple pop up messages and unwanted advertisements, creating a massive annoyance for the user.
  • Keystroke-logging and capturing users’ actions without their knowledge while slowly sapping the system’s performance.
  • Email viruses gradually destroy the operating system’s essential files and makes the device unusable.
  • Locking the user out of programs, files, or even the PC itself and sometimes requiring them to pay a fee to gain access again.

Best Practices To Prevent A Polymorphic Virus

Polymorphic viruses change their appearance and signature thousands of times per second by using mutation engines. They’re challenging to detect. They’re constantly evolving, so they’re hard to stop. Companies must spend time and money finding better ways to prevent malware from infecting their computers to combat this. Threat actors can also use malware spread through spam, phishing emails, or infected websites to steal sensitive data from computers, disrupt business operations, and cause damage to computers, or business email compromise.

Polymorphic viruses were explicitly designed to evade the security tools used by antivirus software. Sophisticated polymorphs are used in almost every form of malware, including botnets and ransomware. Companies can get real time protection from polymorphic viruses and other malicious software by following best security practices. A new strain of computer virus has been discovered for the first time in 30 years. It has been dubbed “polymorphic” because it changes its form to avoid detection by any antivirus program. Polymorphic viruses were created to prevent early antivirus programs. Over the past three decades, cyber attacks have become increasingly sophisticated. Malware today comes in various forms, from traditional email viruses to worms to trojans to ransomware.

The Trustifi Inbound Shield™

Trustifi’s Inbound Shield imposes a layer of protection between your email system and the outside world. Using Artificial Intelligence (AI) and dynamic engines, Inbound Shield readily identifies and blocks suspicious activity in inbound emails. In addition to scanning and eliminating malicious email content, the Inbound Shield looks for a host of anomalies, including:

  • Imposters are sending malicious messages from falsified domains.
  • Requests for money transfers and confidential information.
  • Links to impersonated websites.
  • Attachments contain executable code snippets, SQL injection strings, etc.

These filtering processes take only milliseconds to run and can even detect unprecedented zero-day attacks.

How does the Trustifi Inbound Shield™ Scanning Works

Incoming emails are scanned in 3 parts and have a unique and advanced approach for each page.

Email Content and Headers

  • AI TO DETECT AND CLASSIFY BEC/VEC/SPAM/GRAY
  • Header analysis to detect spoofing and impersonation techniques

LINKS – ADVANCED METHODS TO CATCH THE MOST SOPHISTICATED PHISHING SITES, INCLUDING ZERO-DAY SITES

  • Deep analysis based on content, metadata, and domain reputation
  • Proprietary method to catch zero-day spear phishing sites

EMAIL – CONTINUOUSLY SCAN PHISHING EMAIL CONTENT AND HEADERS

  • Links inside files
  • Zip and archive files
  • Sandbox detection
  • Trojans, viruses, and malware

Why Trustifi?

Trustifi is a cyber security firm featuring solutions delivered on software as a service platform. Trustifi leads the market with the easiest to use and deploy email security products, providing both inbound and outbound email security from a single vendor.

As a global cybersecurity provider of both inbound and outbound email protection, Trustifi currently supports customers from countries including the USA, Canada, Brazil, the Dominican Republic, the UK, the Netherlands, India, the UAE, China, Japan, Cyprus, the Philippines, and more. The company has also developed “One-Click Compliance” capabilities that cater to world security regulations, including PDPO for Hong Kong, POPI for South Africa, GDPR for Europe, and LGPD for Brazil.

Culture

Trustifi’s email security services feature a comprehensive suite of email tools for advanced threat protection, easily configurable Data Loss Prevention, and enterprise email encryption. Trustifi’s easy-to-use software is unmatched in its user-friendliness, flexibility, and cost-effectiveness. Trustifi’s time to value, ease of deployment, and lower cost of ownership for SecOps make the company culture secure and a financial match for any client seeking email security, data exfiltration, and message encryption.

Request A Demo – Trustifi – Email Security Solutions

Whether you’re looking for an extra layer of protection in your existing email environment or a complete suite solution to protect your company against phishing attacks, the expertise and simplicity Trustifi offers will exceed your expectations. No more fraudulent emails. With Trustifi’s security solutions that use behavior based detection technique, your sensitive information is safe.

Let’s talk about a customized email security plan that perfectly fits your needs.

 

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