A group of hackers from Phantom Squad threatens hundreds of companies around the world with DDoS-attacks, demanding ransom in Bitcoins.
— Derrick (@Ring0x0) September 19, 2017
As reported, mass spam-campaign has begun on September 19th. The extortionists demand to transfer 0.2 BTC (slightly more than $750 at the current rate) to their Bitcoin-wallet until September 30th, and promise that after this date the amount will increase to 20 BTC, increasing by 10 BTC daily.
For now, it's rather difficult to count the exact number of the letters sent by the hackers. However, in social networks plenty confirmations of the mass character of the mailing can be found.
Same here. Did anybody cross their deadline without paying? If so, what happened? Do the real #phantomsquad have a handle on Twitter?
— Jacopo Rumi (@drowningbynums) September 21, 2017
Apparently #PhantomSquad emailed our company threatening DDoS... Can't even compose a legible email
— Tyler Brink (@trbrink) September 19, 2017
In addition, the network security experts at Radware doubt that the threat group is a genuine Phantom Squad, since the latter is known primarily for attacks on Xbox Live, PSN and Steam game services. On top of that, malicious users may simply not have enough resources for a DDoS attack on such a number of targets, experts say.
It is also noteworthy that the "Sender's Name" line of the hacker mailing lists a certain Mr. Smith, which may be a reference to the recent attack on HBO.