FreakOut! Ongoing Botnet Attack Exploiting Recent Linux Vulnerabilities

An ongoing malware campaign has been found exploiting recently disclosed vulnerabilities in network-attached storage NAS devices running on Linux systems to co-opt the machines into an IRC botnet for launching distributed denial-of-service DDoS attacks and mining Monero cryptocurrency. The attack...

Python Cryptominer Botnet Quickly Adopts Latest Vulnerabilities

Over the last few days, Imperva researchers have monitored the emergence of a new botnet, one whose primary activity is performing different DDoS attacks and mining cryptocurrency. It also acts as a worm trying to extend its reach by scanning specific subnets and ports and using different remote...

SDWAN Center : (CVE-1999-0517)SNMP Agent's Default Community string (PUBLIC) and SNMP 'GETBULK' Reflection DDoS

Vulnerability issue...

Hamas May Be Threat to 8chan, QAnon Online

In October 2020, KrebsOnSecurity looked at how a web of sites connected to conspiracy theory movements QAnon and 8chan were being kept online by DDoS-Guard, a dodgy Russian firm that also hosts the official site for the terrorist group Hamas. New research shows DDoS-Guard relies on data centers...

h1-ctf: hackyholidays CTF Writeup

Summary: As per the referenced blog entry, the Grinch has gone hi-tech this year with the intentions of ruining the holidays. The challenge was about infiltrating the Grinch's network and take it down. As outlined on https://hackerone.com/h1-ctf, the domain hackyholidays.h1ctf.com was in scope. I...

Akamai Prolexic and Equinix Cloud Exchange Unite, Bringing DDoS Defense Closer to the Customer Origin

In terms of cyberthreats and digital risk, 2020 has been all about DDoS attacks. We've seen threat actors launch record breaking 1.44 Tbps and 809 Mpps attacks, cybercriminals conduct the largest global DDoS extortion campaign, and a significant uptick in cyberweek DDoS attacker activity aimed at...

Akamai Prolexic and Equinix Cloud Exchange Bring DDoS Defense Closer to the Origin

In terms of cyberthreats and digital risk, 2020 has been all about distributed denial-of-service DDoS attacks...

Attackers Abusing Citrix NetScaler Devices to Launch Amplified DDoS Attacks

Citrix has issued an emergency advisory warning its customers of a security issue affecting its NetScaler application delivery controller ADC devices that attackers are abusing to launch amplified distributed denial-of-service DDoS attacks against several targets. "An attacker or bots can overwhe...

h1-ctf: [CTF] I've DDoSed Grinch Network

Hello! Here are all 12 flags for HackyHolidays CTF: 1. flag48104912-28b0-494a-9995-a203d1e261e7 2. flagb7ebcb75-9100-4f91-8454-cfb9574459f7 3. flagb705fb11-fb55-442f-847f-0931be82ed9a 4. flag972e7072-b1b6-4bf7-b825-a912d3fd38d6 5. flag2e6f9bf8-fdbd-483b-8c18-bdf371b2b004 6...

Threat Advisory - DTLS Amplification Distributed Denial of Service Attack on Citrix ADC and Citrix Gateway

Threat Information Citrix is aware of a DDoS attack pattern impacting Citrix ADCand Citrix Gateway. As part of this attack, an attacker or bots can overwhelm the Citrix ADCDTLS network throughput, potentially leading to outbound bandwidth exhaustion. The effect of this attack appears to be more...

Dark Web Pricing Skyrockets for Microsoft RDP Servers, Payment-Card Data

Cybercriminals are vying for Remote Desktop Protocol RDP access, stolen payment cards and DDoS-for-Hire services, based on a recent analysis of underground marketplace pricing. During the COVID-19 pandemic, cybercriminals have profited with “increasingly advantageous positions to benefit from the...

Lessons learned building supervised machine learning into DDoS Protection

Imperva’s Data Scientists trained a machine-learning model to auto-configure DDoS security policies and this blog shares some of the lessons learned along the way. Data scientists consider labeled data the gold standard and, despite having to filter out anomalies, there is an overall tendency to...

10 Ways to Protect Against DDoS Attacks

Distributed denial-of-service DDoS attacks continue to grow in size, frequency, and complexity, threatening businesses and service providers around the world. A warning was recently issued about a steep uptick of DDoS attack threats demanding bitcoin ransom with thousands of organizations across...

Feds: K-12 Cyberattacks Dramatically on the Rise

The feds have warned that cyberattacks on the K-12 education sector are ramping up alarmingly. In an alert from the FBI and the Cybersecurity and Infrastructure Security Agency CISA, officials said that data from the Multi-State Information Sharing and Analysis Center MS-ISAC shows that in August...

Cyber Actors Target K-12 Distance Learning Education to Cause Disruptions and Steal Data

Summary This Joint Cybersecurity Advisory was coauthored by the Federal Bureau of Investigation FBI, the Cybersecurity and Infrastructure Security Agency CISA, and the Multi-State Information Sharing and Analysis Center MS-ISAC. The FBI, CISA, and MS-ISAC assess malicious cyber actors are targeti...

Cyberweek 2020 Attracted Both Online Shoppers and DDoS Attackers

2020 has shown both record-busting bps and pps attacks and the most prolific DDoS extortion campaign recorded by Akamai...

Cyberweek 2020 Attracted Both Online Shoppers and DDoS Attackers

As we close out 2020, it should come as no surprise that Cyberweek the week of Thanksgiving through Cyber Monday proved big for DDoS attacks. Threat actors were out in force during this key shopping season, and they shifted their sights toward disrupting digital commerce-related industries. This...

NICER Protocol Deep Dive: Internet Exposure of memcached

Welcome to the NICER Protocol Deep Dive blog series! When we started researching what all was out on the internet way back in January, we had no idea we'd end up with a hefty, 137-page tome of a research report. The sheer length of such a thing might put off folks who might otherwise learn a thin...

Add Security Events to Your Monitoring Tools

Real-time monitoring is important in every organization because it enables stakeholders to understand what is happening at any given time and react quickly. There are a lot of systems and devices we can and should monitor using tools such as application performance monitoring, digital performance...

Heightened Awareness for Iranian Cyber Activity

Iranian cyber threat actors have been continuously improving their offensive cyber capabilities. They continue to engage in more conventional offensive cyber activities ranging from website defacement, distributed denial of service DDoS attacks, and theft of personally identifiable information PI...