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Security News, Exploits, and Vulnerabilities.

DDoS attacks in Q3 2017

In the third quarter of 2017, we registered a considerable increase in the number of both DDoS attacks and their targets. Traditionally, China is the country with the largest number of attack sources and targets. It was followed by the United States and South Korea. The popularity of Windows OS as a basis for creating a botnet has fallen noticeably, while the share of Linux-based botnets increased proportionally.

Miners on the Rise

Over the last month alone, we have detected several large botnets designed to profit from concealed crypto mining. We have also observed growing numbers of attempts to install miners on servers owned by organizations. When these attempts are successful, the companies’ business processes suffer because data processing speeds fall substantially.

DDoS attacks in Q2 2017

The second quarter quite clearly showed that the DDoS-attack threat is perceived rather seriously. Some companies were prepared to pay cybercriminals literally after their first demand without waiting for the attack itself. This set off a whole new wave of fraud involving money extortion under threat of a DDoS attack, also known as “ransom DDoS”.

Honeypots and the Internet of Things

According to Gartner, there are currently over 6 billion IoT devices on the planet. Such a huge number of potentially vulnerable gadgets could not possibly go unnoticed by cybercriminals. As of May 2017, Kaspersky Lab’s collections included several thousand different malware samples for IoT devices, about half of which were detected in 2017.

Dridex: A History of Evolution

In the several years that the Dridex family has existed, there have been numerous unsuccessful attempts to block the botnet’s activity. The ongoing evolution of the malware demonstrates that the cybercriminals are not about to bid farewell to their brainchild, which is providing them with a steady revenue stream.

DDOS attacks in Q1 2017

Although the first quarter of 2017 was rather quiet compared to the previous reporting period, there were a few interesting developments. Despite the growing popularity of IoT botnets, Windows-based bots accounted for 59.81% of all attacks. Meanwhile, complex attacks that can only be repelled with sophisticated protection mechanisms are becoming more frequent.

Hajime, the mysterious evolving botnet

Hajime (meaning ‘beginning’ in Japanese) is an IoT worm that was first mentioned on 16 October 2016 in a public report by RapidityNetworks. In this blogpost we outline some of the recent ‘improvements’ to Hajime, some techniques that haven’t been made public, and some statistics about infected IoT devices.

The cost of launching a DDoS attack

Almost anyone can fall victim to a DDoS attack. They are relatively cheap and easy to organize, and can be highly effective if reliable protection is not in place. Based on analysis of the data obtained from open sources, we managed to find out the current cost of a DDoS attack on the black market. We also established what exactly the cybercriminals behind DDoS attacks offer their customers.

New(ish) Mirai Spreader Poses New Risks

A cross-platform win32-based Mirai spreader and botnet is in the wild and previously discussed publicly. However, there is much information confused together, as if an entirely new IoT bot is spreading to and from Windows devices. This is not the case. Instead, an accurate assessment is that a previously active Windows botnet is spreading a Mirai bot variant.

DDoS attacks in Q4 2016

2016 was the year of Distributed Denial of Service (DDoS) with major disruptions in terms of technology, attack scale and impact on our daily life. In fact, the year ended with massive DDoS attacks unseen before, leveraging Mirai botnet technology.

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