DDoS attacks

Malware & Threats

Issued by: Security Affairs

The Dutch National Cyber Security Centre (NCSC) reported that the websites of several hospital in the Netherlands and Europe were hit by DDoS attacks carried out by pro-Russia hacking group Killnet. The group of hackers launched the offensive against the hospitals in the European countries due to their support for Ukraine. “Hospitals in Europe, including…

Malware & Threats

Issued by: Dark Reading

The ransomware-as-a-service (RaaS) groups LockBit and ALPHV (aka BlackCat), among others, have been the focus of distributed denial-of-service (DDoS) attacks targeting their data leak sites, causing downtime and outages. The attacks have been monitored by Cisco Talos since Aug. 20 and include a wide range of other RaaS groups, including Quantum, LV, Hive, Everest, BianLian,…

Malware & Threats

Issued by: Help Net Security

Attackers are actively exploiting an “old” vulnerability (CVE-2021-22205) to take over on-premise GitLab servers, Rapid7 researcher Jacob Baines warns. The additional bad news is that at least half of the 60,000 internet-facing GitLab installations the company detects are not patched against this issue. What are the attackers doing with these servers? Damian Menscher, a security…

Malware & Threats

Issued by: Security Week

Botnets continue to be a major problem for cybersecurity teams. With the growth in sophisticated threats, botnets are becoming more malicious, sometimes able to create hundreds of thousands of drones that can attack a variety of machines, including Mac systems, Linux, Windows systems, edge devices, IoT devices, and so on. Examining threat trends around botnet…

Malware & Threats

Issued by: Dark Reading

Cybercriminals appear to have finally figured out a way to launch highly effective distributed denial-of-service (DDoS) attacks using TCP amplification — something most attackers have typically avoided under the assumption it cannot be done efficiently. Security vendor Radware this week said its researchers over the past 30 days have observed multiple criminal campaigns involving the…

Malware & Threats

Issued by: Dark Reading

Huge DDoS Attacks Shift Tactics in 2019

On Jan. 10, a distributed denial-of-service (DDoS) attack peaked at 500 million packets per second. Depending on precisely how you measure such things, this was likely one of the largest DDoS attacks ever — until April 30, when it was surpassed by an attack that hit 580 packets per second. According to Imperva, the company…

Malware & Threats

Issued by: Help Net Security

IoT devices using CoAP increasingly used in DDoS attacks

IoT devices in synchronised attacks on targets represent a growing part of global Distributed Denial of Service (DDoS) weapon arsenals. There is a significant potential for attackers to use an IoT-related protocol, the Constrained Application Protocol (CoAP), deployed on IoT devices to marshal attacks. The A10 Networks report on the state of DDoS weapons in…