What is a simple definition of ransomware?

Ransomware is a type of malware that prevents or limits users from accessing their system, either by locking the system’s screen or by locking the users’ files until a ransom is paid.

What is the encryption algorithm used by the TeslaCrypt?

the AES encryption algorithm
When TeslaCrypt encrypts a victim’s files it uses the AES encryption algorithm, which uses the same key to encrypt and decrypt a file.

What are different types of ransomware?

Different Types of Ransomware

• CryptoLocker. CryptoLocker botnet is one of the oldest forms of cyber attacks which has been around for the past two decades.
• WannaCry. WannaCry is the most widely known ransomware variant across the globe.
• Bad Rabbit.
• Cerber.
• Crysis.
• CryptoWall.
• GoldenEye.
• Jigsaw.

What’s the most severe type of ransomware?

Cryptowall 4.0 is considered one of the most destructive ransomware viruses. It can infect a computer via spear phishing spam, which is targeted spam that looks like authentic communication with attachments that look like PDF invoices, bills, and other common attachments which are actually malicious ZIP files.

How does ransom ware work?

Ransomware is a malware designed to deny a user or organization access to files on their computer. By encrypting these files and demanding a ransom payment for the decryption key, cyberattackers place organizations in a position where paying the ransom is the easiest and cheapest way to regain access to their files.

How does Dridex malware work?

How does Dridex work? Cybercriminals will spread Dridex through spam emails. The emails are presented as official and will prompt the victim to open an attached Microsoft Word or Excel file. A macro embedded within the file will trigger when the file is opened and start a download of Dridex.

What are the three types of ransomware?

Historically, the two main types of ransomware are crypto and locker. More recently, double extortion and ransomware as a service (RaaS) have become popular among threat actors. Locker ransomware blocks access to computer systems entirely.

What are the four types of ransomware?

Common Types of Ransomware

• Bad Rabbit.
• Cryptolocker.
• GoldenEye.
• Jigsaw.
• Locky.
• Maze.
• NotPetya.
• Petya.

How long do ransomware attacks last?

Ransomware recovery timeframes can vary widely. In very unusual situations, companies are only down for a day or two. In other unusual cases, it can take months. Most companies fall somewhere between the two to four week range, given their struggle with not knowing what they are doing.

How do hackers use ransomware?

During a ransomware hack, attackers infiltrate a target’s computer system and encrypt its data. They then demand a payment before they will release the decryption key to free the system.

Is ransomware a virus?

Ransom malware, or ransomware, is a type of malware that prevents users from accessing their system or personal files and demands ransom payment in order to regain access. While some people might think “a virus locked my computer,” ransomware would typically be classified as a different form of malware than a virus.

What is Dridex botnet?

Dridex, also known as Bugat or Cridex, is known as a malware that focuses on stealing banking credentials. It uses the macros of Word documents which are delivered as attachments in malspam campaigns. The infrastructure used behind the attacks is the Dridex Botnet whose main targets are Windows users.

Which type of approach is used by Dridex malware?

Specifically, Dridex malware is classified as a Trojan, which hides malicious coding within seemingly harmless data. The main goal of Dridex malware is to steal sensitive details from its victim’s bank accounts, for example, their online banking credentials and financial access.

What files did CryptoLocker encrypt?

The process only encrypts data files with certain extensions, including Microsoft Office, OpenDocument, and other documents, pictures, and AutoCAD files.

What does a ransomware do?

https://www.youtube.com/watch?v=_zpDuAXJXhc