Massive Multi-Vector 1.37 Tbps DDoS Attack Mitigated by Imperva DDoS Protection

On July 22, an Imperva customer was targeted by a network DDoS attack that reached a maximum bandwidth of 1.37 trillion bits per second Tbps, making it one of the largest attacks that Imperva has stopped and one of the larger DDoS attacks on record. The attack lasted a little over two hours in...

Exploit for Incorrect Calculation in Moodle

Proof of concept for CVE-2022-30600 Overview This rep...

New Malware Campaign Targeting Job Seekers with Cobalt Strike Beacons

A social engineering campaign leveraging job-themed lures is weaponizing a years-old remote code execution flaw in Microsoft Office to deploy Cobalt Strike beacons on compromised hosts. "The payload discovered is a leaked version of a Cobalt Strike beacon," Cisco Talos researchers Chetan...

Researchers Warn of New Go-based Malware Targeting Windows and Linux Systems

A new, multi-functional Go-based malware dubbed Chaos has been rapidly growing in volume in recent months to ensnare a wide range of Windows, Linux, small office/home office SOHO routers, and enterprise servers into its botnet. "Chaos functionality includes the ability to enumerate the host...

Threat Roundup for September 16 to September 23

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Sept. 16 and Sept. 23. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral...

FritzFrog: A New Generation of Peer-to-Peer Botnets

Guardicore has discovered FritzFrog, a sophisticated peer-to-peer P2P botnet that has been actively breaching SSH servers since January 2020...

Record DDoS Attack with 25.3 Billion Requests Abused HTTP/2 Multiplexing

Cybersecurity company Imperva has disclosed that it mitigated a distributed denial-of-service DDoS attack with a total of over 25.3 billion requests on June 27, 2022. The "strong attack," which targeted an unnamed Chinese telecommunications company, is said to have lasted for four hours and peake...

Emotet Botnet Started Distributing Quantum and BlackCat Ransomware

The Emotet malware is now being leveraged by ransomware-as-a-service RaaS groups, including Quantum and BlackCat, after Conti's official retirement from the threat landscape this year. Emotet started off as a banking trojan in 2014, but updates added to it over time have transformed the malware...

Record 25.3 Billion Request Multiplexing DDoS Attack Mitigated by Imperva

On June 27, 2022, Imperva mitigated a single attack with over 25.3 billion requests, setting a new record for Imperva’s application DDoS mitigation solution. While attacks with over one million requests per second RPS aren’t new, we’ve previously only seen them last for several seconds to a few...

Mirai botnet resurfaces with MooBot variant to target D-Link devices

By Deeba Ahmed The botnet is exploiting four different vulnerabilities in D-Link devices. This is a post from HackRead.com Read the original post: Mirai botnet resurfaces with MooBot variant to target D-Link devices...

Mirai Variant MooBot Botnet Exploiting D-Link Router Vulnerabilities

A variant of the Mirai botnet known as MooBot is co-opting vulnerable D-Link devices into an army of denial-of-service bots by taking advantage of multiple exploits. "If the devices are compromised, they will be fully controlled by attackers, who could utilize those devices to conduct further...

Hikvision IP Camera RCE Vulnerability (HSRC-202109-01) - Active Check

Multiple Hikvision IP camera devices are prone to a remote code execution RCE vulnerability. SPDX-FileCopyrightText: 2022 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CP...

Thousands of Hikvision video cameras remain unpatched and vulnerable to takeover

In September 2021 we told you about insecure Hikvision security cameras that were ready to be taken over remotely. However, according to a whitepaper published by CYFIRMA, tens of thousands of systems used by 2,300 organizations across 100 countries have still not applied the security update, and...

In the Fight Against DDoS Attacks, not all PoPs are Created Equal

A distributed denial of service DDoS attack is a malicious attempt to make an online service unavailable to users, usually by temporarily interrupting or suspending the services of its hosting server. A DDoS attack is launched from numerous compromised devices, often distributed globally in what ...

New Orchard Botnet Uses Bitcoin Founder's Account Info to Generate Malicious Domains

A new botnet named Orchard has been observed using Bitcoin creator Satoshi Nakamoto's account transaction information to generate domain names to conceal its command-and-control C2 infrastructure. "Because of the uncertainty of Bitcoin transactions, this technique is more unpredictable than using...

Vulnerability fixed in DrayTek Vigor routers

Researchers from security firm Trellix have found a vulnerability found in DrayTek Vigor routers. A unauthenticated malicious person with network access to the management interface could exploit the vulnerability to execute arbitrary code. This allows the malicious party to gain control of the...

Breach Exposes Users of Microleaves Proxy Service

Microleaves, a ten-year-old proxy service that lets customers route their web traffic through millions of Microsoft Windows computers, recently fixed a vulnerability in their website that exposed their entire user database. Microleaves claims its proxy software is installed with user consent, but...

IoT Botnets Fuel DDoS Attacks – Are You Prepared?

While data breaches and ransomware are still considered among the more significant concern for businesses, the threats sometimes come from a direction we weren’t expecting. Cybercriminals use botnets for various malicious purposes, most significantly for DDoS attacks against targets. The most...

The 8220 Cryptomining Gang massively expands Cloud Botnets

Threat Level Actor Report For a detailed advisory, download the pdf file here Summary The 8220 gang has significantly expanded their cloud bot armies around the world, targeting AWS, Azure, GCP, Alitun, and QCloud cloud service hosts. The group is being detected using a new version of the IRC...

This Cloud Botnet Has Hijacked 30,000 Systems to Mine Cryptocurrencies

The 8220 cryptomining group has expanded in size to encompass as many as 30,000 infected hosts, up from 2,000 hosts globally in mid-2021. "8220 Gang is one of the many low-skill crimeware gangs we continually observe infecting cloud hosts and operating a botnet and cryptocurrency miners through...