DDoS


NEWS

  • Ireland: Health service IT systems forced to shut down after ‘fairly sophisticated’ cyber attack

    May 14, 2021

    Health service IT systems have been shutdown today following a cyber attack that the HSE believes was carried out by international criminals seeking to extort money . The HSE said the main attack began at around 4.30am on Friday and that IT staff switched off systems as a “precaution” in order to protect data and give ...

  • Wormable Windows Bug Opens Door to DoS, RCE

    May 11, 2021

    Microsoft’s May Patch Tuesday release addressed a modest 55 cybersecurity vulnerabilities, including just four critical bugs. It’s the smallest monthly update from the computing giant since 2020, but it does contain a patch for a concerning wormable vulnerability found in the Windows OS. The good news is that none of the vulnerabilities are being actively exploited ...

  • DDoS attacks in Q1 2021

    May 10, 2021

    Q1 2021 saw the appearance of two new botnets. News broke in January of the FreakOut malware, which attacks Linux devices. Cybercriminals exploited several critical vulnerabilities in programs installed on victim devices, including the newly discovered CVE-2021-3007. Botnet operators use infected devices to carry out DDoS attacks or mine cryptocurrency. Another active bot focused on Android devices with the ADB ...

  • New TsuNAME DNS bug allows attackers to DDoS authoritative DNS servers

    May 6, 2021

    Attackers can use a newly disclosed domain name server (DNS) vulnerability publicly known as TsuNAME as an amplification vector in large-scale reflection-based distributed denial of service (DDoS) attacks targeting authoritative DNS servers. In simpler terms, authoritative DNS servers translate web domains to IP addresses and pass this info to recursive DNS servers that get queried by ...

  • 800Gbps DDoS extortion attack hits gambling company

    March 31, 2021

    Distributed denial-of-service (DDoS) attacks started strong this year, setting new records and taking the extortion trend that started last August to the next level. Internet security services company Akamai has already dealt with the largest known ransom DDoS (RDDoS) attack, which was also more complex than previously seen incidents of the same type. Bigger, more complex RDDoS Akamai ...

  • New ZHtrap botnet malware deploys honeypots to find more targets

    March 12, 2021

    A new botnet is hunting down and transforming infected routers, DVRs, and UPnP network devices into honeypots that help it find other targets to infect. The malware, dubbed ZHtrap by the 360 Netlab security researchers who spotted it, is loosely based on Mirai’s source code, and it comes with support for x86, ARM, MIPS, and other ...

  • DDoS attacks in Q4 2020

    February 16, 2021

    Cybercriminals are constantly on the lookout for means and methods to make attacks more destructive. In Q4 2020, Citrix ADC (application delivery controller) devices became one such tool, when perpetrators abused their DTLS interface. The DTLS (Datagram Transport Layer Security) protocol is used to establish secure connections over UDP, through which most DNS queries, as ...

  • DDoS attacks on Russian online retailers double in 2020

    February 16, 2021

    The number of DDoS attacks on Russian online retailers nearly doubled in 2020 compared to the previous year, the Rostelecom-Solar cyber security company said in a statement. “Online retail business has been in the focus of cyber criminals for several years. However, as customer demand for online retail services grew amid coronavirus restrictions, they became even ...

  • DDoS attack takes down EXMO cryptocurrency exchange servers

    February 15, 2021

    The servers of British cryptocurrency exchange EXMO were taken offline temporarily after being targeted in a distributed denial-of-service (DDoS) attack. “We are currently experiencing a DDoS attack on our platform,” the exchange said in a notification published earlier today. “Please note that the EXMO exchange website is now under the DDoS attack. The servers are temporarily unavailable.” In ...

  • Another ransomware now uses DDoS attacks to force victims to pay

    January 24, 2021

    Another ransomware gang is now using DDoS attacks to force a victim to contact them and negotiate a ransom. In October 2020, we reported that ransomware gangs were beginning to utilize DDoS attacks against a victims’ network or web site as an extra tool to force them to pay a ransom. At the time, the two ...

  • Windows Remote Desktop servers now used to amplify DDoS attacks

    January 21, 2021

    Windows Remote Desktop Protocol (RDP) servers are now being abused by DDoS-for-hire services to amplify Distributed Denial of Service (DDoS) attacks. The Microsoft RDP service is a built-in Windows service running on TCP/3389 and/or UDP/3389 that enables authenticated remote virtual desktop infrastructure (VDI) access to Windows servers and workstations. Attacks taking advantage of this new UDP reflection/amplification ...