Security Market Segment LS
Wednesday, 28 June 2017 09:03

Latest ransomware: No gain for attackers as email shut down Featured


The person or people behind the latest Windows ransomware attack have not gained much in terms of money as the email address given for receiving Bitcoin was shut down by the email provider.

A sum of US$300 in Bitcoin was sought as ransom by those who spread the ransomware that, unlike WannaCry, spreads on a local network once it has infected a device. In the case of WannaCry, once an infection took place, the infected device looked for other devices on the Internet to infect.

British security researcher Marcus Hutchins, better known as Malwaretech and the man who inadvertently stopped WannaCry from spreading, advised people who were hit by the latest blitz not to pay the ransom.

"The email address the ransomware asks you to contact upon payment has been blocked by the provider, so there is currently little chance files can be recovered by paying the ransom," he said.

However, this also meant that those who paid could not obtain the decryption keys from the perpetrators. But decrypting after infection could be difficult due to the dual AES-128 and RSA-2048 encryption.

Hutchins added: "Unlike most ransomware, Petya encrypts after reboot so if you’re infected the files will not be encrypted until the machine is rebooted (the malware sets a schedule task to automatically reboot after 1h, but you can simply shut down before then to prevent encryption if you know you’re infected)."

He said that while the jury was still out on whether this ransomware was Petya or a similar strain, one researcher known as Hasherezade, who had done a lot of work on the original Petya ransomware, had concluded that there was a great deal of similarity with it.

According to security company F-Secure, the original Petya encrypts the Master Boot Record, the portion of a Windows computer's hard drive that runs first and starts operating system, allowing all other programs to run. It typically arrives via email.

The method of infection used by the latest outbreak is not yet clear, though some infections appear to have happened through a malicious update for the Ukrainian tax accounting package called MeDoc. This appears to have been confirmed by MeDoc.


You cannot afford to miss this Dell Webinar.

With Windows 7 support ending 14th January 2020, its time to start looking at your options.

This can have significant impacts on your organisation but also presents organisations with an opportunity to fundamentally rethink the way users work.

The Details

When: Thursday, September 26, 2019
Presenter: Dell Technologies
Location: Your Computer


QLD, VIC, NSW, ACT & TAS: 11:00 am
SA, NT: 10:30 am
WA: 9:00 am NZ: 1:00 pm

Register and find out all the details you need to know below.



iTWire can help you promote your company, services, and products.


Advertise on the iTWire News Site / Website

Advertise in the iTWire UPDATE / Newsletter

Promote your message via iTWire Sponsored Content/News

Guest Opinion for Home Page exposure

Contact Andrew on 0412 390 000 or email [email protected]


Sam Varghese

website statistics

Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.



Recent Comments