Fewer DDoS Attacks in 2021, Still Above Pre-Pandemic Levels

New research finds a rise in TCP acknowledgement (ACK) DDoS attacks, which rely on a smaller amount of traffic to disrupt targets.

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Italy warns organizations to brace for incoming DDoS attacks

The Computer Security Incident Response Team in Italy issued an urgent alert yesterday to raise awareness about the high risk of cyberattacks against national bodies and organizations on Monday. [...]

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Cybergang Claims REvil is Back, Executes DDoS Attacks

Actors claiming to be the defunct ransomware group are targeting one of Akami’s customers with a Layer 7 attack, demanding an extortion payment in Bitcoin.

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DDoS Extortion Attack Flagged as Possible REvil Resurgence

A DDoS campaign observed by Akamai from actors claiming to be REvil would represent a major pivot in tactics for the gang.

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Linux Trojan XorDdos Attacks Surge, Targeting Cloud, IoT

Analysts have seen a massive spike in malicious activity by the XorDdos trojan in the last six months, against Linux cloud and IoT infrastructures .

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Russian Sberbank says it’s facing massive waves of DDoS attacks

Sberbank's vice president and director of cybersecurity, Sergei Lebed, has told participants of the Positive Hack Days forum that the company is going through a period of unprecedented targeting by hackers. [...]

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Microsoft detects massive surge in Linux XorDDoS malware activity

A stealthy and modular malware used to hack into Linux devices and build a DDoS botnet has seen a massive 254% increase in activity during the last six months, as Microsoft revealed today. [...]

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This Russian botnet does far more than DDoS attacks - and on a massive scale

Operators can track social media trends and tailor their propaganda to suit.

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DDoS attacks fell last year but remain above pre-pandemic levels

The number of DDoS attacks dropped 13 percent in 2021 compared to 2020, but remained well above pre-pandemic levels. Research from Nexusguard also shows that while the average attack size fell by 50 percent over 2021, the maximum attack size nearly tripled, growing by a whopping 297 percent over the same period. The top three DDoS attack vectors in 2021 were UDP (user datagram protocol) attacks, DNS amplification attacks, and TCP acknowledgment attacks. UDP remained the most common although it accounted for a smaller percentage of attacks, falling from 59.9 percent in 2020 to 39.1 percent in 2021. DNS amplification… [Continue Reading]

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Italian CERT: Hacktivists hit govt sites in ‘Slow HTTP’ DDoS attacks

Italy's Computer Security Incident Response Team (CSIRT) has published an announcement about the recent DDoS attacks that key sites in the country suffered in the last couple of days. [...]

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Battle.net hit by huge DDoS attack

World of Warcraft, Overwatch, and Call of Duty players were unable to access their accounts.

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Ukrainians DDoS Russian Vodka Supply Chains

Hacktivists hit the Kremlin where it hurts

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Pro-Ukraine hackers use Docker images to DDoS Russian sites

Docker images with a download count of over 150,000 have been used to run distributed denial-of-service (DDoS) attacks against a dozen Russian and Belarusian websites managed by government, military, and news organizations. [...]

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A YouTuber is encouraging you to DDoS Russia—how risky is this?

A YouTube influencer with hundreds of thousands of subscribers is encouraging everyone to conduct cyber warfare against Russia. How risky is it and can you get in trouble? [...]

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A YouTuber is encouraging everyone to DDoS Russia—how risky is this?

A YouTube influencer with hundreds of thousands of subscribers is encouraging everyone to conduct cyber warfare against Russia. How risky is it and can you get in trouble? [...]

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A YouTuber is promoting DDoS attacks on Russia — how legal is this?

A YouTube influencer with hundreds of thousands of subscribers is encouraging everyone to conduct cyber warfare against Russia. How risky is it and can you get in trouble? [...]

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One of the Most Powerful DDoS Attacks Ever Hits a Crypto Platform

The onslaught was delivered through HTTPS, which puts more strain on a target, and it suggests that attackers are getting more powerful.

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Cloudflare Flags Largest HTTPS DDoS Attack It's Ever Recorded

This scale of this month's encrypted DDoS attack over HTTPS suggests a well-resourced operation, analysts say.

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Russian hacktivists launch DDoS attacks on Romanian govt sites

The Romanian national cyber security and incident response team, DNSC, has issued a statement about a series of distributed denial-of-service (DDoS) attacks targeting several public websites managed by the state entities. [...]

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Hacked WordPress sites used to DDoS Ukrainian targets

Websites declaring pro-Ukrainian stance under attack.

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