Kinsing evolves, adds Windows to attack list

The campaign was first seen by the Akamai SIRT on February 16, 2021, and appears to be targeting both Windows and Linux systems. The botnet caught our interest because it has shown to be highly active across a diverse set of geographical regions, including the Americas, Europe, and Asia...

Mēris Botnet Hit Russia's Yandex With Massive 22 Million RPS DDoS Attack

Russian internet giant Yandex has been the target of a record-breaking distributed denial-of-service DDoS attack by a new botnet called Mēris. The botnet is believed to have pummeled the company's web infrastructure with millions of HTTP requests, before hitting a peak of 21.8 million requests pe...

KrebsOnSecurity Hit By Huge New IoT Botnet “Meris”

On Thursday evening, KrebsOnSecurity was the subject of a rather massive and mercifully brief distributed denial-of-service DDoS attack. The assault came from "Meris," the same new botnet behind record-shattering attacks against Russian search giant Yandex this week and internet infrastructure fi...

Yandex Pummeled by Potent Meris DDoS Botnet

Technical details tied to a record-breaking distributed-denial-of-service DDoS attack against Russian internet behemoth Yandex are surfacing as the digital dust settles. A massive botnet, dubbed Mēris, is believed responsible, flooding Yandex with millions of HTTP requests for webpages at the sam...

Chinese Authorities Arrest Hackers Behind Mozi IoT Botnet Attacks

The operators of the Mozi IoT botnet have been taken into custody by Chinese law enforcement authorities, nearly two years after the malware emerged on the threat landscape in September 2019. News of the arrest, which originally happened in June, was disclosed by researchers from Netlab, the...

What are Booters, Stressers and DDoSers❓

What are booter administrations? Booters, frequently known as booter administrations are mainstream DDoS Distributed-Denial-of-Service that are offered by brilliant hoodlums to assault and cut down sites and secure organizations. To lay it out plainly, booters are alluded to as ill-conceived...

Realtek-based routers, smart devices are being gobbled up by a voracious botnet

A few weeks ago we blogged about a vulnerability in home routers that was weaponized by the Mirai botnet just two days after disclosure. Mirai hoovers up vulnerable Internet of Things IoT devices and adds them to its network of zombie devices, which can then be used to launch huge Distributed...

Cloudflare mitigated one of the largest DDoS attack involving 17.2 million rps

Web infrastructure and website security company Cloudflare on Thursday disclosed that it mitigated the largest ever volumetric distributed denial of service DDoS attack recorded to date. The attack, launched via a Mirai botnet, is said to have targeted an unnamed customer in the financial industr...

Largest DDoS attack ever reported gets hoovered up by Cloudflare

On the Cloudflare blog, the American web infrastructure behemoth that provides content delivery network CDN and DDoS mitigation services reports that it detected and mitigated a 17.2 million request-per-second rps DDoS attack. To put that number in perspective. The company reports that this is...

Mozi IoT Botnet Now Also Targets Netgear, Huawei, and ZTE Network Gateways

Mozi, a peer-to-peer P2P botnet known to target IoT devices, has gained new capabilities that allow it to achieve persistence on network gateways manufactured by Netgear, Huawei, and ZTE, according to latest findings. "Network gateways are a particularly juicy target for adversaries because they...

How to proactively defend against Mozi IoT botnet

Mozi is a peer-to-peer P2P botnet that uses a BitTorrent-like network to infect IoT devices such as network gateways and digital video records DVRs. It works by exploiting weak telnet passwords1 and nearly a dozen unpatched IoT vulnerabilities2 and it’s been used to conduct distributed...

How to proactively defend against Mozi IoT botnet

Mozi is a peer-to-peer P2P botnet that uses a BitTorrent-like network to infect IoT devices such as network gateways and digital video records DVRs. It works by exploiting weak telnet passwords1 and nearly a dozen unpatched IoT vulnerabilities2 and it’s been used to conduct distributed...

HolesWarm Malware Exploits Unpatched Windows, Linux Servers

By leveraging more than 20 known vulnerabilities in Linux and Windows servers, the HolesWarm cryptominer malware has been able to break into more than 1,000 cloud hosts just since June. The basic cryptominer botnet has been so successful at juggling so many different known vulnerabilities between...

Multiple Flaws Affecting Realtek Wi-Fi SDKs Impact Nearly a Million IoT Devices

Taiwanese chip designer Realtek is warning of four security vulnerabilities in three software development kits SDKs accompanying its WiFi modules, which are used in almost 200 IoT devices made by at least 65 vendors. The flaws, which affect Realtek SDK v2.x, Realtek "Jungle" SDK...

Cobalt Strike Vulnerability Affects Botnet Servers

Cobalt Strike is a security tool, used by penetration testers to simulate network attackers. But its also used by attackers -- from criminals to governments -- to automate their own attacks. Researchers have found a vulnerability in the product. The main components of the security tool are the...

Check your passwords! Synology NAS devices under attack from StealthWorker

Synology PSIRT Product Security Incident Response Team has put out a warning that it has recently seen and received reports about an increase in brute-force attacks against Synology devices. PSIRT suspects the botnet commonly known as StealthWorker is responsible for this increase in activity...

Hackers Exploiting New Auth Bypass Bug Affecting Millions of Arcadyan Routers

Unidentified threat actors are actively exploiting a critical authentication bypass vulnerability to hijack home routers as part of an effort to co-opt them to a Mirai-variant botnet used for carrying out DDoS attacks, merely two days after its public disclosure. Tracked as CVE-2021-20090 CVSS...

Home routers are being hijacked using vulnerability disclosed just 2 days ago

The early bird catches the worm. Unless the worm was early enough to hide. On August 3, 2021 a vulnerability that was discovered by Tenable was made public. Only two days later, on August 5, Juniper Threat Labs identified some attack patterns that attempted to exploit this vulnerability in the...

When coin miners evolve, Part 2: Hunting down LemonDuck and LemonCat attacks

Note: In this two-part blog series, we expose a modern malware infrastructure and provide guidance for protecting against the wide range of threats it enables. Part 1 covered the evolution of the threat, how it spreads, and how it impacts organizations. Part 2 provides a deep dive on the attacker...

When coin miners evolve, Part 2: Hunting down LemonDuck and LemonCat attacks

Note: In this two-part blog series, we expose a modern malware infrastructure and provide guidance for protecting against the wide range of threats it enables. Part 1 covered the evolution of the threat, how it spreads, and how it impacts organizations. Part 2 provides a deep dive on the attacker...