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The Computer Emergency Response Team of Ukraine (CERT-UA) has warned that more than 2,000 computers in the country have been infected by a strain of malware called DirtyMoe. The agency attributed the campaign to a threat actor it calls UAC-0027. DirtyMoe, active since at least 2016, is capable of carrying out cryptojacking and distributed denial-of-service […]
The threat actor behind a peer-to-peer (P2P) botnet known as FritzFrog has made a return with a new variant that leverages the Log4Shell vulnerability to propagate internally within an already compromised network. “The vulnerability is exploited in a brute-force manner that attempts to target as many vulnerable Java applications as possible,” web infrastructure and security […]
The environmental services industry witnessed an “unprecedented surge” in HTTP-based distributed denial-of-service (DDoS) attacks, accounting for half of all its HTTP traffic. This marks a 61,839% increase in DDoS attack traffic year-over-year, web infrastructure and security company Cloudflare said in its DDoS threat report for 2023 Q4 published last week. “This surge in cyber attacks […]
The recently disclosed critical security flaw impacting Apache ActiveMQ is being actively exploited by threat actors to distribute a new Go-based botnet called GoTitan as well as a .NET program known as PrCtrl Rat that’s capable of remotely commandeering the infected hosts. The attacks involve the exploitation of a remote code execution bug (CVE-2023-46604, CVSS […]
Russian threat actors have been possibly linked to what’s been described as the “largest cyber attack against Danish critical infrastructure,” in which 22 companies associated with the operation of the country’s energy sector were targeted in May 2023. “22 simultaneous, successful cyberattacks against Danish critical infrastructure are not commonplace,” Denmark’s SektorCERT said [PDF]. “The attackers […]
Amazon Web Services (AWS), Cloudflare, and Google on Tuesday said they took steps to mitigate record-breaking distributed denial-of-service (DDoS) attacks that relied on a novel technique called HTTP/2 Rapid Reset. The layer 7 attacks were detected in late August 2023, the companies said in a coordinated disclosure. The cumulative susceptibility to this attack is being […]
The Internet of Things (IoT) is transforming efficiency in various sectors like healthcare and logistics but has also introduced new security risks, particularly IoT-driven DDoS attacks. This article explores how these attacks work, why they’re uniquely problematic, and how to mitigate them. What Is IoT? IoT (Internet of Things) refers to online, interconnected devices that […]
There is a new battlefield. It is global and challenging to defend. What began with a high-profile incident back in 2007, when Estonia was hit by hackers targeting its government and commercial sector, has evolved into cyber warfare that is being waged constantly worldwide. Today, cyberattacks have become the norm, transforming how we think about […]
Several distributed denial-of-service (DDoS) botnets have been observed exploiting a critical flaw in Zyxel devices that came to light in April 2023 to gain remote control of vulnerable systems. “Through the capture of exploit traffic, the attacker’s IP address was identified, and it was determined that the attacks were occurring in multiple regions, including Central […]
A new malware called Condi has been observed exploiting a security vulnerability in TP-Link Archer AX21 (AX1800) Wi-Fi routers to rope the devices into a distributed denial-of-service (DDoS) botnet. Fortinet FortiGuard Labs said the campaign has ramped up since the end of May 2023. Condi is the work of a threat actor who goes by […]
At the beginning of January, Gcore faced an incident involving several L3/L4 DDoS attacks with a peak volume of 650 Gbps. Attackers exploited over 2000 servers belonging to one of the top three cloud providers worldwide and targeted a client who was using a free CDN plan. However, due to Gcore’s distribution of infrastructure and […]
Web infrastructure company Cloudflare on Monday disclosed that it thwarted a record-breaking distributed denial-of-service (DDoS) attack that peaked at over 71 million requests per second (RPS). “The majority of attacks peaked in the ballpark of 50-70 million requests per second (RPS) with the largest exceeding 71 million,” the company said, calling it a “hyper-volumetric” DDoS […]
A newly discovered evasive malware leverages the Secure Shell (SSH) cryptographic protocol to gain entry into targeted systems with the goal of mining cryptocurrency and carrying out distributed denial-of-service (DDoS) attacks. Dubbed KmsdBot by the Akamai Security Intelligence Response Team (SIRT), the Golang-based malware has been found targeting a variety of companies ranging from gaming […]
The threat actor behind the Fodcha distributed denial-of-service (DDoS) botnet has resurfaced with new capabilities, researchers reveal. This includes changes to its communication protocol and the ability to extort cryptocurrency payments in exchange for stopping the DDoS attack against a target, Qihoo 360’s Network Security Research Lab said in a report published last week. Fodcha […]
Web infrastructure and security company Cloudflare disclosed this week that it halted a 2.5 Tbps distributed denial-of-service (DDoS) attack launched by a Mirai botnet. Characterizing it as a “multi-vector attack consisting of UDP and TCP floods,” researcher Omer Yoachimik said the DDoS attack targeted the Minecraft server Wynncraft in Q3 2022. “The entire 2.5 Tbps […]
WordPress sites are being hacked to display fraudulent Cloudflare DDoS protection pages that lead to the delivery of malware such as NetSupport RAT and Raccoon Stealer. “A recent surge in JavaScript injections targeting WordPress sites has resulted in fake DDoS prevent prompts which lead victims to download remote access trojan malware,” Sucuri’s Ben Martin said […]
Taiwan’s Presidential website and several websites run by the government of Taiwan were disrupted by distributed denial-of-service (DDoS) attacks hours before United States Speaker Nancy Pelosi’s visit to mainland China. According to NBC News Report, the attacks hit four websites, those of President Tsai Ing-wen, the National Defense Ministry, the Foreign Affairs Ministry, and the […]
In the past few weeks, an organization in Eastern Europe has been the victim of the biggest DDoS attack that the continent has ever experienced. During the past month, several DDoS attacks have been launched against the target, a customer of Akamai, as part of an ongoing assault. Attackers are increasingly using DDoS attacks to […]
For the protection of Cloudflare customers last week, Cloudflare assessed 26 million requests per second and mitigated the attacks as part of a DDoS attack mitigation strategy. While this DDoS attack has been registered as the largest HTTPS DDoS attack on record. In this attack, a botnet network consisting of approximately 5,000 devices launched this […]
Fronton, a distributed denial-of-service (DDoS) botnet that came to light in March 2020, is much more powerful than previously thought, per the latest research. “Fronton is a system developed for coordinated inauthentic behavior on a massive scale,” threat intelligence firm Nisos said in a report published last week. “This system includes a web-based dashboard known […]
A Linux botnet malware known as XorDdos has witnessed a 254% surge in activity over the last six months, according to latest research from Microsoft. The trojan, so named for carrying out denial-of-service attacks on Linux systems and its use of XOR-based encryption for communications with its command-and-control (C2) server, is known to have been […]