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. Read Full Article

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. Read Full Article

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. Read Full Article

Is Mirai Really as Black as It’s Being Painted?

The Mirai botnet, which is made up of IoT devices and which was involved in DDoS attacks whose scale broke all possible records, has been extensively covered by the mass media. Given that the botnet’s source code has been made publicly available and that the Internet of Things trend is on the rise, no decline in IoT botnet activity should be expected in the near future. Read Full Article

Inside the Gootkit C&C server

In September 2016, we discovered a new version of Gootkit with a characteristic and instantly recognizable feature: an extra check of the environment variable ‘crackme’ in the downloader’s body. Just as interesting was the fact that we were able to gain access to the bot’s C&C server, including its complete hierarchal tree of folders and files and their contents. Read Full Article