Tag Archives: news

Return of Necurs botnet brings new ransomware threat

The Necurs botnet has returned to the top ten most prevalent malware during November 2017, as cybercriminals used it to distribute a new form of ransomware, according to Check Point. Researchers found that hackers were using Necurs, considered to be the largest spam botnet in the world, to distribute the relatively new Scarab ransomware that was first seen in June 2017. The Necurs botnet started mass distribution of Scarab during the Thanksgiving holiday, sending over … More ?

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Return of Necurs botnet brings new ransomware threat

DDoS attackers increasingly targeting cryptocurrency exchanges

The extraordinary volatility of the price of bitcoin has spurred speculators to employ a wide variety of tricks to make it swing between extremes, so that they can take advantage of it. The unregulated nature of the cryptocurrency ecosystem makes it possible for things like statements by widely esteemed financial executives to have a sizeable impact on the currency’s price. Another way to influence the price is through DDoS attacks against bitcoin exchange sites. There’s … More ?

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DDoS attackers increasingly targeting cryptocurrency exchanges

Andromeda botnet dismantled in international cyber operation

On 29 November 2017, the Federal Bureau of Investigation (FBI), in close cooperation with the Luneburg Central Criminal Investigation Inspectorate in Germany, Europol’s European Cybercrime Centre (EC3), the Joint Cybercrime Action Task Force (J-CAT), Eurojust and private-sector partners, dismantled one of the longest running malware families in existence called Andromeda (also known as Gamarue). According to Microsoft, Andromeda’s main goal was to distribute other malware families. Andromeda was associated with 80 malware families and, in … More ?

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Andromeda botnet dismantled in international cyber operation

Infosec expert viewpoint: DDoS attacks

DDoS attacks have become more extensive and are testing the limits of existing DDoS mitigation tools and practices, as well as affecting online businesses globally. Organizations are experiencing an increase in the magnitude of DDoS attacks, with the average size of attacks over 50 Gbps quadrupling in just two years. What presents a particular risk for organizations is the barrage of short, low volume attacks that mask more serious network intrusions. Frost & Sullivan found … More ?

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Infosec expert viewpoint: DDoS attacks

Millions download botnet-building malware from Google Play

Researchers have discovered a new batch of malicious apps on Google Play, some of which have been downloaded and installed on some 2.6 million devices. The apps’ capabilities The apps posed as legitimate offerings that modify the look of the characters in Minecraft: Pocket Edition (PE). In the background, though, they set out to rope the devices into a botnet. Once they were installed on a target device, they would connect to a C&C server, … More ?

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Millions download botnet-building malware from Google Play

Investigation reveals large botnet hiding behind Fast Flux technique

Fast Flux, a DNS technique first introduced in 2006 and widely associated with the Storm Worm malware variants, can be used by botnets to hide various types of malicious activities – including phishing, web proxying, malware delivery, and malware communication. The technique allows the botnet to “hide” behind an ever-changing network of compromised hosts, ultimately acting as proxies and making detection incredibly difficult. High-level architecture overview of the Fast Flux network ?and associated threat landscape … More ?

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Investigation reveals large botnet hiding behind Fast Flux technique

Three out of four DDoS attacks target multiple vectors

Three out of every four DDoS attacks employed blended, multi-vector approaches in the second quarter of 2017, according to Nexusguard. Distribution of DDoS attack vectors The quarterly report, which measured more than 8,300 attacks, demonstrated that hackers continued to rely on volumetric attacks to overwhelm system resources. For example, UDP-based attacks increased by 15 percent this quarter, targeting hijacked devices connected to the IoT, and overtaking SYN, HTTP Flood and other popular volumetric attacks in … More ?

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Three out of four DDoS attacks target multiple vectors

Global DDoS mitigation market trends and developments

Frost & Sullivan found that the DDoS mitigation market generated a revenue of $816 million in 2016 and is expected to register a CAGR of 17.1 percent through 2021. Threat actors’ continuous development of new techniques to overwhelm their target’s defenses and improve effectiveness of their DDoS attacks in terms of scale, frequency, stealth, and sophistication, are factors driving rapid growth. DDoS attacks are on the rise Attacks have become more extensive and are testing … More ?

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Global DDoS mitigation market trends and developments

Week in review: Cyber threat hunting, Android DDoS botnet, drone bug bounty

Here’s an overview of some of last week’s most interesting news, podcasts and articles: New, custom ransomware delivered to orgs via extremely targeted emails Ransomware campaigns are usually wide-flung affairs: the attackers send out as many malicious emails as possible and hope to hit a substantial number of targets. But more targeted campaigns are also becoming a trend. Getting a start on cyber threat hunting We live in a world where the adversaries will persist … More ?

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Week in review: Cyber threat hunting, Android DDoS botnet, drone bug bounty