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Necurs Botnet
Nexo

Necurs Botnet Resurfaces With Updated Locky and Dridex Versions

Jp Buntinx by Jp Buntinx
6 years ago
in Bitcoin, Bitcoin Breaking News Brief, Breaking Bitcoin News, Breaking News, News, News teaser
0
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Locky remains one of the biggest ransomware threats to this very date. Now that the Necurs botnet is back, it looks like a new version of Locky Bitcoin ransomware is available as well. A new spam campaign is underway to infect as many computers as possible.

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Roughly three weeks ago, the Necurs botnet suddenly went offline, leaving security researchers puzzled as to what happened to it. This reprieve was rather short-lived, however, as the botnet returned in full force a few days ago. Moreover, it is spreading an improved version of both Locky ransomware and the Dridex banking trojan.

Necurs Botnet Is On The Job

Bitcoinist_Necurs Botnet Dridex Locky

Proofpoint researchers noted how the Necurs botnet started sending out several million spam emails on Monday. All of these emails contain both types of malware, in the hopes of infecting consumer machines and corporate networks all over the world. Ransomware has become far more popular in 2015 than ever before, and it seems like this trend will continue throughout 2016.

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Although details are not officially confirmed, security researchers believe Necurs is one of the largest botnets in the world. Threatpost mentioned how there seem to be over 6.1 million infected computers as part of this network.Moreover, this botnet has been instrumental in spreading Dridex and Locky, resulting in US$100,000 to US$200,00 in daily revenue from these malware strains.

Similar to how these spam messages tried to infect users in the past, fake invoice attachments remain the primary method of distribution. Targeted users will receive a generic email containing an invoice which will download Locky or Dridex onto the host computer. Some emails also come with a zip file that contains JavaScript code.

As one would come to expect, the new and improved Locky is even better at avoiding detection. Several new features have been built in by the developers, such as detecting a sandboxed environment and relocation Locky instruction code. Security researchers will have a hard time coming up with new solutions to combat this ransomware moving forward.

What are your thoughts on the Necurs botnet resurfacing? Let us know in the comments below!

Source: Threatpost

Images courtesy of Shutterstock

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Jp Buntinx

Jp Buntinx

JP Buntinx is a freelance Bitcoin writer and Bitcoin journalist for various digital currency news outlets around the world. In other notes, Jean-Pierre is an active member of the Belgian Bitcoin Association, and occasionally attends various Bitcoin Meetups in Ghent and Brussels

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