Tag: botnet
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Necurs update reminds us that the botnet cannot be ignored
If, at some point in the past few years, you have looked at a spam campaign in which a lot of emails were being sent from Vietnam or India, there’s a good chance the spam was sent by the Necurs botnet. Necurs has been active for at least six years – Virus Bulletin published a…
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Tendency for DDoS attacks to become less volumetric fits in a wider trend
A current trend sees DDoS attacks focusing less on large volume attacks and more on attacks that exhaust server resources, Cloudflare reports . The number of layer 7 attacks per day. Source: Cloudflare. This makes sense. The purpose of a DDoS attack is to render a service unavailable, and as increased defences have made it…
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Tendency for DDoS attacks to become less volumetric fits in a wider trend
A current trend sees DDoS attacks focusing less on large volume attacks and more on attacks that exhaust server resources, Cloudflare reports . The number of layer 7 attacks per day. Source: Cloudflare. This makes sense. The purpose of a DDoS attack is to render a service unavailable, and as increased defences have made it…
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Hide’n’Seek IoT botnet adds persistence
The Hide’n’Seek IoT botnet has received an update to make its infection persist on infected devices beyond a restart, Bitdefender reports . Though persistence is fairly common for traditional botnets that target ( Windows ) PCs, a device that is part of a botnet targeting the Internet of Things (IoT) can often be ‘cleaned’ simply…
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Hide’n’Seek IoT botnet adds persistence
The Hide’n’Seek IoT botnet has received an update to make its infection persist on infected devices beyond a restart, Bitdefender reports . Though persistence is fairly common for traditional botnets that target ( Windows ) PCs, a device that is part of a botnet targeting the Internet of Things (IoT) can often be ‘cleaned’ simply…
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Security-focused routers may help to mitigate IoT threats
Walking around the RSA show floor last week, it was clear that the Internet of Things, or IoT, is a hot topic in security. Indeed, the number of connected devices continues to grow and new IoT botnets continue to be discovered, with Saikin and Hajime being two of the most recent examples. It is important…
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Security-focused routers may help to mitigate IoT threats
Walking around the RSA show floor last week, it was clear that the Internet of Things, or IoT, is a hot topic in security. Indeed, the number of connected devices continues to grow and new IoT botnets continue to be discovered, with Saikin and Hajime being two of the most recent examples. It is important…
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New paper: A review of the evolution of Andromeda over the years
In December last year, a joint operation involving law enforcement agencies and many security firms led to the dismantling of the Andromeda botnet, also known as Gamarue or Wauchos. Such takedowns have become a common feature in the fight against online crime, though there have been many instances where a disrupted botnet has subsequently been…
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New paper: A review of the evolution of Andromeda over the years
In December last year, a joint operation involving law enforcement agencies and many security firms led to the dismantling of the Andromeda botnet, also known as Gamarue or Wauchos. Such takedowns have become a common feature in the fight against online crime, though there have been many instances where a disrupted botnet has subsequently been…
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Necurs pump-and-dump spam campaign pushes obscure cryptocurrency
Cryptocurrencies have attracted the attention of cybercriminals for many years: as a relatively anonymous payment channel, as a target of their digital theft, and as a way to turn (temporarily) compromised systems into money-generating machines. Given the recent increases in the value of many such cryptocurrencies, it is not surprising to see them being promoted…