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06/19/2017        Threat Landscape
Three new DDoS extortioners are active in parallel in Europe

Additionally to the Meridian Collective, the Xball Team and the Collective Amadeus are currently blackmailing companies by way of DDoS-attacks.

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05/29/2017        Threat Landscape
DDoS Survey: Majority of Hosting Providers Expect Increasing Danger of DDOS

Over 85% of hosting providers and data center operators in Europe expect they will be falling victim to DDoS attacks more frequently in the future. This is the result of a current survey by Link11, German DDoS protection specialist, on industry-wide experiences with denial of service attacks in the hosting sector. Two out of three ISPs see DDoS protection as a service as a growth market for their own product portfolios.

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05/17/2017        Threat Landscape
Warning: Dangerous DDoS attacks by ZZb00t targeting multiple new victims

A series of unrelenting DDoS attacks has been primarily targeting European and especially German websites since late April. Behind the attacks on ecommerce shops, logistic enterprises and telecommunications providers is a hacker with the Twitter handle @ZZb00t. The LSOC is warning of the attacks that are targeting the original web server IP addresses and internal networks.

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05/03/2017        Threat Landscape
New Round of DDoS Blackmailing by XMR-Squad (allegedly)

Many companies in Germany and Switzerland have received blackmail threats in the name of XMR-Squad since Monday (May 1, 2017). The Link11 Security Operation Center (LSOC) have been monitoring developments closely. The criminal group was recently in the news with its DDoS attacks on Hermes and DHL, but attention quickly dissipated. According to initial analysis, the LSOC assumes that this latest round of blackmailing is the work of copycats.

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04/21/2017        Threat Landscape
Warning against aggressive DDoS blackmail group XMR-Squad

Following the recent DDoS blackmailing in the name of Stealth Ravens targeting German companies in late January, perpetrators acting under the name of XMR-Squad are now asking for 250 euros for testing (DDoS) protection.

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02/01/2017        Threat Landscape
Link11 warns: DDoS Extorters Stealth Ravens mean serious Business with Mirai Botnet

Since the end of January a new DDoS extortion group with the alias Stealth Ravens is active in Germany. Their extortion mails received by ecommerce services are accompanied by warning attacks through a Mirai botnet. The Link11 Security Operation Center (LSOC) is warning online shop providers about DDoS attack reaching more than 10 Gbps.

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08/02/2016        Threat Landscape
DDoS Attacks break a new Record in Germany: 104 Attacks per Day

The new DDoS report for Central Europe shows an increase of DDoS attacks by 36%. Over 9,000 attacks were targeted at servers and infrastructures in Germany, Austria and Switzerland. This means that the Link11 Security Operation Center (LSOC) identified and blocked averagely 104 attacks a day. Most attacks were executed on a Saturday or Sunday.

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06/02/2016        Threat Landscape
DDoS Extorters Kadyrovtsy target German Businesses

Since the last weekend banks and online marketing agencies in Germany are receiving DDoS extortion mails from Kadyrovtsy. The current situations leads the Link11 Security Operation Center (LSOC) to warn about demonstration attacks reaching bandwidths of far more than 50 Gbps from the perpetrators. So far, the use of such high-volume warning attacks has been more a trait of internationally operating extorters DD4BC and Armada Collective.

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05/24/2016        Threat Landscape
DDoS Report Q1 2016 for Germany, Austria, Switzerland

In the first quarter of 2016, the number of DDoS attacks grew by nearly 30% over the previous quarter. Someone in German-speaking Europe falls victim to a DDoS attack every 2 minutes, as seen in the current Link11 DDoS Report for Q1 2016.

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04/29/2016        Threat Landscape
How Cloudflare CEO Matthew Prince unintentionally Boosts DDoS Ransom Mails

Just recently the US DDoS protection vendor Cloudflare has been criticized for protecting the sites of DDoS extorters. Now a new good meant blog post flooding the internet has caused copycats hoping for a fast buck to blackmail companies as well.

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