memcached, now with extortion!

Over the past week, memcached reflection attacks have taken the DDoS scene by storm. With several attacks hitting organizations across many industries, including a record breaking 1.3Tbps attack against an Akamai customer. Akamai has observed a new trend in extortion attempts using memcached...

Massive DDoS attack washes over GitHub

There's been some huge DDoS distributed denial of service attacks over the years, but we've been…lucky?…enough to witness the latest raising of the stakes in the last couple of days. GitHub, an incredibly important code resource for major organisations around the world, fell victim to a colossal...

Apple in the InfoSec Spotlight, as GitHub Falls Prey to Amplified DDoS Attack

Apple has been all over InfoSec news in the past week or so, along with Spectre / Meltdown developments, a tax season scam alert from the feds, and an apparent solution to the Winter Olympics' hack whodunit. In addition, researchers warned about a new trend of using Memcached servers to...

In Wake of ‘Biggest-Ever’ DDoS Attack, Experts Say Brace For More

The largest distributed denial of service attack was recorded Wednesday and targeted GitHub. The DDoS attack measured 1.3 Tbps of sustained traffic for eight minutes. That shattered a previous DDoS publicly record attack associated with the Mirai botnet in Sept., 2016 that maxed-out at half the...

Biggest-Ever DDoS Attack (1.35 Tbs) Hits Github Website

On Wednesday, February 28, 2018, GitHub's code hosting website hit with the largest-ever distributed denial of service DDoS attack that peaked at record 1.35 Tbps. Interestingly, attackers did not use any botnet network, instead weaponized misconfigured Memcached servers to amplify the DDoS attac...

Github hit by 1.35 Tbps DDoS attack; the largest ever

By Waqas The online version control and code distribution platform Github has suffered a This is a post from HackRead.com Read the original post: Github hit by 1.35 Tbps DDoS attack; the largest ever...

Inside a New DDoS Amplification Attack Vector via Memcached Servers

We recently saw a new DDoS amplification attack vector via memcached servers that culminated in two massive DDoS amplification attacks on February 28. Both attacks were mitigated successfully. Here’s how memchached servers work and how the attacks unfolded. Memcached servers Unless updated within...

Hackers can compromise Memcached Servers for DDoS attacks

By Waqas Unsecured Implementation of UDP Protocol Put Memcached Servers at Risk This is a post from HackRead.com Read the original post: Hackers can compromise Memcached Servers for DDoS attacks...

New 10 Second SLA For Rapid DDoS Mitigation

Two months ago, we updated the Imperva Incapsula SLA service level agreement to guarantee network and application layer DDoS attack mitigation in under 10 seconds. This commitment sets a new standard for time to mitigation TTM, made possible by improvements to our DDoS mitigation technology and...

Blast from the past: stowaway Virut delivered with Chinese DDoS bot

Recently, we described an unusual Chinese drive-by attack that was delivering a variant of the Avzhan DDoS bot. The attack also contained multiple components that were not-so-new. Among the exploits, the newest was from 2016. Avzhan is also not a recent malware—the compilation timestamp of the...

Memcached-fueled 1.3 Tbps attacks

At 17:28 GMT, February 28th, Akamai experienced a 1.3 Tbps DDoS attack against one of our customers, a software development company, driven by memcached reflection. This attack was the largest attack seen to date by Akamai, more than twice the size of the September, 2016 attacks that announced th...

Memcached Amplification Attack (UDP, Memcrashed) - Active Check

A publicly accessible Memcached server can be exploited to participate in a Distributed Denial of Service DDoS attack. SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders...

Misconfigured Memcached Servers Abused to Amplify DDoS Attacks

Cybercriminals behind distributed denial of service attacks have added a new and highly effective technique to their arsenal to amplify attacks by as much as 51,200x by using misconfigured memcached servers accessible via the public internet. The technique was reported by Akamai, Arbor Networks a...

Memcached Servers Abused for Massive Amplification DDoS Attacks

Cybercriminals have figured out a way to abuse widely-used Memcached servers to launch over 51,000 times powerful DDoS attacks than their original strength, which could result in knocking down of major websites and Internet infrastructure. In recent days, security researchers at Cloudflare, Arbor...

Memcached Detection (UDP)

UDP based detection of Memcached. SPDX-FileCopyrightText: 2018 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 Note: Another product MemcacheDB http://memcachedb.org/ is...

Memcached UDP Reflection Attacks

Akamai is aware of a new DDoS reflection attack vector: UDP-based memcached traffic. Memcached is a tool meant to cache data and reduce strain on heavier data stores, like disk or databases. The protocol allows the server to be queried for information about key value stores and is only intended t...

Your Cache is Exposed

On February 28, Akamai recorded a 1.35 Tbps DDoS attack against one of our customers. The attack was driven by a relatively new vector, memcached reflection. Possibly the largest publicly disclosed DDoS attack to date, the memcached attack was more than twice the size of the largest DDoS attacks...

A week in security (February 19 – February 25)

Last week on Malwarebytes Labs, we gave readers a primer on encryption, took a stab at that Deepfakes tool Internet users seem to be interested in, and started a new series that talks about GDPR. We also looked at a drive-by download campaign that starts in booby-trapped Chinese websites that dro...

Avzhan DDoS bot dropped by Chinese drive-by attack

The Avzhan DDoS bot has been known since 2010, but recently we saw it in wild again, being dropped by a Chinese drive-by attack. In this post, we'll take a deep dive into its functionality and compare the sample we captured with the one described in the past. Analyzed sample...

NetRefer Chooses Imperva Incapsula WAF: A Case Study

Since 2005, companies have been using NetRefer’s performance marketing software to fully automate their affiliate programs. From enrollment through customer relationship management CRM, tracking, finance and rewards management and payments, NetRefer’s Unified Performance Marketing Platform...