GreenFlash Sundown exploit kit expands via large malvertising campaign

The GreenFlash exploit kit, which we typically saw targeting South Korean users, reaches globally with a large malvertising campaign via a popular website.

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Electrum Bitcoin wallets under siege

Threat actors are relentlessly phishing and attacking Electrum Bitcoin wallet users, racking up millions of dollars.

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Vidar and GandCrab: stealer and ransomware combo observed in the wild

Threat actors combine new stealer Vidar and GandCrab ransomware in one-two punch.

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A week in security (December 17 – 23)

A roundup of last week’s security news from December 17–23, including Christmas scams, phishing quizzes, Underminer, smart speakers, flawed Twitter form, Chromebook malware, and Fuchsia.

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Exploit kits: fall 2018 review

With a fresh exploit kit in town, the drive-by download landscape shows new signs of life in fall 2018.

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Magnitude exploit kit switches to GandCrab ransomware

After being faithful to its own Magniber ransomware for several months, Magnitude EK joins others to adopt GandCrab.

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Hermes ransomware distributed to South Koreans via recent Flash zero-day

An uncommon exploit kit adds a fresh Flash Player exploit to distribute the Hermes ransomware in South Korea.

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Avzhan DDoS bot dropped by Chinese drive-by attack

The Avzhan DDoS bot is back in the wild again, this time being dropped by a Chinese drive-by attack. In this post, we’ll take a deep dive into its functionality and compare the sample we captured with the one described in the past.

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Drive-by download campaign targets Chinese websites, experiments with exploits

This custom made drive-by download attack targets some Chinese websites and their visitors while experimenting with exploits.

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Disdain exploit kit and a side of social engineering deliver Neutrino Bot

Exploits may not be enough as threat actors combine them with social engineering in a new Disdain exploit kit attack method.

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