Financial threats

The number of users attacked with ransomware is huge. But how big is it? Ransomware seems to be a global threat. But maybe there are regions at a higher risk of danger? There seem to be a lot of ransomware malware groups. But what are the most widespread and dangerous?

Over the last two years, deep in the slums of the Internet, a different kind of underground market has flourished. The short, cryptic name perhaps doesn’t say much about it: xDedic. However, on this obscure marketplace anyone can purchase more than 70,000 hacked servers from all around the Internet.

In this blog post we discuss the threats to visitors aiming to travel to Brazil to watch the Olympic Games and to those planning to watch it online. We’ll talk about phishing attacks, highlight WiFi security and touch upon physical security that involves the usage of USB charging spots, the problem of credit card cloning and ATM skimmers.

We have written about this banker Trojan before. It caught our attention almost as soon as it appeared because it used a fileless spreading mechanism – malicious code was not saved on the hard drive and ran in memory only. However, until now no detailed description of Lurk had been published.

In 2009, instead of infecting the computers of users worldwide, criminals went directly after the ATM itself – infecting it with malware called Skimer. Seven years later, our experts discovered a new, improved, version of Skimer.

2016 has only just got underway, but the first three months have already seen the same amount of cybersecurity events that just a few years ago would have seemed normal for a whole year. The main underlying trends remained the same, while there was significant growth in trends related to traditional cybercrime, especially mobile threats and global ransomware epidemics.

Petya Trojan is an unusual hybrid of an MBR blocker and data encryptor: it prevents not only the operating system from booting but also blocks normal access to files located on the hard drives of the attacked system.

Millions of people around the world now use ATMs every day to withdraw cash, pay in to their account or make a variety of payments. Unfortunately, ATM manufacturers and their primary customers – banks – don’t pay much attention to the security of cash machines.

In February 2016, the Internet was shaken by an epidemic caused by the new ransomware Trojan Locky. The Trojan has been actively propagating up to the present day. Kaspersky Lab products have reported attempts to infect users with the Trojan in 114 countries around the world. Analysis of the samples has shown that this Trojan is a brand new ransomware threat, written from scratch.

Cybercrime in Brazil has changed drastically in the last few years, as it shifted from simple keyloggers to tailored remote administration tools that can run a complete attack by using the victim machine. As we know, they are in touch with cybercriminals from Eastern Europe, mainly Russians.

We found a new wave of different campaigns spreading the initial “Banloader” components in Jar (Java archive). It’s able to run on Linux, OS X, Windows. It’s also able to run under certain circumstances even on mobile devices.

We have seen many shapes and colors of cryptolockers, but the new CTB-Locker variant says it all. A new variant of the CTB-Locker targets web servers only, and to our knowledge it has already successfully encrypted web-root files in more than 70 servers.

On November 2015, Kaspersky Lab researchers identified ATMZombie, a banking Trojan that is considered to be the first malware to ever steal money from Israeli banks. The incident Israeli banks experienced had a very fascinating and innovative method of stealing the money.

As the functionality of mobile devices and mobile services grows, the appetite of cybercriminals who profit from mobile malware will grow too. Malware authors will continue to improve their creations, develop new technologies and look for new ways of spreading mobile malware. Their main aim is to make money.

Kaspersky Lab security researchers Santiago Pontirol and Roberto Martinez explain how ATM malware works in Latin America and why it’s difficult to discover ‘jackpotting’ malware.