DDoS Attack

DDoS Attack / Most Viewed

‘First True’ Native IPv6 DDoS Attack Reported

Possibly the first documented native IPv6 DDoS attack reported today suggests a DNS dictionary attack which originated from around 1,900 different native IPv6 hosts, on more than 650 different networks. more

NANOG 65 Report

NANOG 65 was once again your typical NANOG meeting: a set of operators, vendors, researchers and others for 3 days, this time in Montreal in October. Here's my impressions of the meeting... The opening keynote was from Jack Waters from Level 3, which looked back over the past 25 years of the Internet, was interesting to me in its reference to the "Kingsbury Letter". more

Sledgehammer DDoS Gamification and Future Bugbounty Integration

Monetization of DDoS attacks has been core to online crime way before the term cybercrime was ever coined. For the first half of the Internet's life, DDoS was primarily a mechanism to extort money from targeted organizations. As with just about every Internet threat over time, it has evolved and broadened in scope and objectives. The new report by Forcepoint Security Labs covering their investigation of the Sledgehammer gamification of DDoS attacks is a beautiful example of that evolution. more

Lessons to Be Learned from the Armada Collective’s DDoS Attacks on Greek Banks

'It could've been worse' is a fascinating expression. It implies that the incident in question obviously could have been worse than expected, however it also implies that it could have been better, ultimately leading to the conclusion that it was at least somewhat bad. So both fortunately and unfortunately for three Greek banks, the ransom DDoS attacks levied against them by hacker group the Armada Collective could have been worse. more

Ensuring Maximum Resilience to the DNS?

Yesterday CommunityDNS noticed a sudden, heavy spike in traffic through its Anycast node in Hong Kong. While comfortably processing queries at 863,000 queries per second for close to 2 hours the occurrence was undeniable. While we can't say the increase in traffic was specifically due to DDoS, its sudden increase is suspicious and reminds us that DDoS is still a popular tool used by the malicious community. more

NTIA Issues RFC, Asks for Input on Dealing With Botnets and DDoS Attacks

NTIA issued a Request for Comments today asking for broad input from "all interested stakeholders, including private industry, academia, civil society, and other security experts," on actions against botnets and distributed attacks. more

VoIP/IP Telephony in Estonia: Disrupted by Botnets?

With my post earlier this month about the possibility of SIP botnets [also featured here on CircleID], I've had a number of people asking about more information and wondering about the possible impacts. And while I will write more on botnets in general, as far as the potential impact of "botnets" in general, one need only look over at the current situation in Estonia... Now, perhaps Russia is behind the attack... perhaps not. There are obviously much larger political issues going on between the two states. more

Anti-Spoofing, BCP 38, and the Tragedy of the Commons

In the seminal 1968 paper "The Tragedy of the Commons" , Garrett Hardin introduced the world to an idea which eventually grew into a household phrase. In this blog article I will explore whether Hardin's tragedy applies to anti-spoofing and Distributed Denial of Service (DDoS) attacks in the Internet, or not... Hardin was a biologist and ecologist by trade, so he explains "The Tragedy of the Commons" using a field, cattle and herdsmen. more

DNSSEC vs DDoS Protection: Is It Really a Choice?

Within the last year or two, I've heard people express an opinion to the effect that if the domain name industry put as much focus on preventing distributed denial of service attacks as we have on implementing DNSSEC, the Internet would be a safer place. While there may be a grain of truth there, I suggest that this kind of thinking presents us with something of a false dichotomy. more

Neustar Professional Services: Additional Expertise to Improve Productivity

While it would be nice if your company had IT staff members that were experts in every technology, that is just not realistic. And today, many companies face the challenge of finding the appropriate and specialized expertise that is required to deal with ongoing issues such as network optimization, performance degradations, network risks, and more. more

Oracle Launches Internet Intelligence Map Providing Insight Into the Impact of Internet Disruptions

Oracle today announced the launch of the Internet Intelligence Map website; a source available for free that provides country-level connectivity statistics based on traceroutes, BGP, and DNS query volumes on a single dashboard. more

DDoS Attacks: What’s in Store for 2012?

According to Kaspersky Lab, 2011 has seen "numerous DDoS attacks with a variety of motives," many of which will "go down in the annals of cybercrime." As we look ahead to 2012, it's worth examining some of those motives to see what they portend. more

FBI, DHS Release Technical Details on North Korea’s DDoS Botnet Infrastructure

U.S. Department of Homeland Security (DHS) and the FBI today released a technical alert based joint-effort analysis of methods behind North Korea’s cyberattacks. more

DNS-Based DDoS: Diverse Options for Attackers

Denial of service attacks have been around since the Internet was commercialized and some of the largest attacks ever launched relied on DNS, making headlines. But every day a barrage of smaller DNS-based attacks take down targets and severely stress the DNS ecosystem. Although DNS servers are not usually the target of attacks they are often disrupted so attention from operation teams is required. There is no indication the problem is going away and attackers continue to innovate. more

Preventing Future Attacks: Alternatives In DNS Security Management - Part I

The October 21 DDoS attacks against the 13 root-name servers containing the master domain list for the Internet's Domain Name System (DNS), (which reportedly took offline 9 of the 13 servers) remain a clear and daunting reminder of the vulnerabilities associated with online security. Many DNS authorities have named the most recent hit the largest DDoS attack against the root server system. Chris Morrow, network security engineer for UUNET, the service provider for two of the world's 13 root servers, recently told The Washington Post... more

Industry Updates

Alleviating BlackEnergy-Enabled DDoS Attacks

Meet the Speakers of the Cyber Threat Mitigation Webinar (by IPXO)

QAnon and 8Chan Digital Footprint Analysis and Investigation Expansion

How to Maintain Your Website’s Network Reachability with DNS Lookup Solutions

Under the Radar DDoS Attacks Increase by 158 Percent in Q2, 2019 Compared to the Same Time Last Year

Neustar Research Shows Large Attacks Growing as Multi-Vector Exploits Increasingly Become the Norm

Neustar to Acquire Verisign’s Security Services Customer Contracts

Q2 2018 DDoS Trends Report: 52 Percent of Attacks Employed Multiple Attack Types

Q1 2018 DDoS Trends Report: 58 Percent of Attacks Employed Multiple Attack Types

Q4 2017 DDoS Trends Report: Financial Sector Experienced 40 Percent of Attacks

Attacks Decrease by 23 Percent in 1st Quarter While Peak Attack Sizes Increase: DDoS Trends Report

Verisign Releases Q4 2016 DDoS Trends Report: 167% Increase in Average Peak Attack from 2015 to 2016

Verisign Q3 2016 DDoS Trends Report: User Datagram Protocol (UDP) Flood Attacks Continue to Dominate

Don’t Gamble With Your DNS

Defending Against Layer 7 DDoS Attacks