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For example, CSIS said it has seen criminal groups use Dreambot to infect systems and look for computers running Point-of-Sale software, to deploy ransomware on corporate networks, to orchestrate BEC fraud, or order goods from hijacked e-shopping accounts (eBay, Amazon, etc.). Instead, they'd infect a large number of computers, and then inspect each target, looking for specific computers. More specifically, it evolved from a specialized banking trojan into a generic trojan.Ĭriminal gangs would rent access to the Dreambot cybercrime machine, but not use it to steal money from bank accounts. However, the CSIS researcher also says that in recent years, Dreambot evolved from being just a banking trojan. 'We counted more than a million infections worldwide just for 2019,' Ancel said. More than one million infections in 2019 aloneĬSIS says this model appears to have been successful. Dreambot 'customers' would infect victims, steal funds, and pay the Dreambot gang a weekly, momthly, or yearly fee. Other crooks could buy access to a part of Dreambot's infrastructure and a version of the Dreambot malware, which they'd be responsible for distributing to victims. With time, Dreambot received new features, such as Tor-hosted command and control servers, a keylogging capability, the ability to steal browser cookies and data from email clients, a screenshoting feature, the ability to record a victim's screen, a bootkit module, and a VNC remote access feature - just to name the most important.įurthermore, Dreambot also evolved from a private malware botnet into what's called a Cybercrime-as-a-Service (CaaS).Īs a CaaS, the Dreambot creators would advertise access to their botnet on hacking and malware forums. Initial versions contained very few features, but the malware evolved into a more complex strain as time went by. Just like any Gozi-based trojan, Dreambot's primary function was to inject malicious content inside browsers and facilitate the theft of banking credentials and the execution of unauthorized financial transactions.

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It was created on top of the leaked source code of the older Gozi ISFB banking trojan, one of the most reused pieces of malware today. The malware's apparent death puts an end to a six-year-old 'career' on the cybercrime landscape.ĭreambot was first spotted in 2014. 'The lack of new features? The multiplication of new Gozi variants? The huge rise of Zloader? COVID-19? We can't be sure exactly what was the cause of death, but more and more indicators point at the end of Dreambot,' said Benoit Ancel, malware analyst at the CSIS Security Group. The company is reporting that the Dreambot's backend servers have gone down in March about the same time when the cybersecurity community also stopped seeing new Dreambot samples distributed in the wild. The Dreambot malware botnet appears to have gone silent and possibly shut down, according to a report published today by the CSIS Security Group, a cyber-security firm based in Copenhagen, Denmark.

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