Security Market Segment LS
Saturday, 13 March 2021 08:11

Windows ransomware adds to Microsoft Exchange Server woes Featured

Windows ransomware adds to Microsoft Exchange Server woes Pixabay

New Windows ransomware, which has been given the name DearCry, has started affecting systems to which access has been gained by exploiting the Microsoft Exchange Server flaws that were announced by Microsoft on 2 March.

The new development came as researchers at security firm DomainTools challenged the claim by many a media outlet that a Chinese group, which has been christened Hafnium by Microsoft, was a state-directed group exploiting the four flaws.

Michael Gillespie, the researcher who runs the ransomware identification service ID Ransomware, spotted a number of submissions to the service with .crypt and a filemarker DearCry, and alerted his Twitter followers to this on Friday.

Gillespie said the submissions from Exchange servers which had US, Canadian and Australian IP addresses.

Microsoft Security Program manager Phillip Misner later confirmed the emergence of the ransomware, saying that the company had observed a new family of ransomware which was using the Exchange flaws to exploit customers.

Patches were issued for the four Exchange Server vulnerabilities a week ahead of the regular patch Tuesday in March.

The DomainTools researchers observed that Microsoft's claim did not make it clear whether Hafnium was a Chinese state-directed operation.

"Initial reporting from Microsoft noted that HAFNIUM is 'state-sponsored and operating out of China, based on observed victimology, tactics and procedures'," they wrote.

"While the statement notes operations out of China and that the entity is assessed to be 'state-sponsored', the sentence as constructed does not explicitly make the claim that Hafnium is a Chinese state-directed operation.

"Yet despite the very careful wording in Microsoft’s blog, multiple media reports quickly made the direct link to China. While such a link is certainly possible and has not been ruled out, as of this writing no conclusive evidence has emerged linking Hafnium operations to the People’s Republic of China."

Read 4399 times

Please join our community here and become a VIP.

Subscribe to ITWIRE UPDATE Newsletter here
JOIN our iTWireTV our YouTube Community here


Hybrid cloud promises to bring together the best of both worlds enabling businesses to combine the scalability and cost-effectiveness of the cloud with the performance and control that you can get from your on-premise infrastructure.

Reducing WAN latency is one of the biggest issues with hybrid cloud performance. Taking advantage of compression and data deduplication can reduce your network latency.

Research firm, Markets and Markets, predicted that the hybrid cloud market size is expected to grow from US$38.27 billion in 2017 to US$97.64 billion by 2023.

Colocation facilities provide many of the benefits of having your servers in the cloud while still maintaining physical control of your systems.

Cloud adjacency provided by colocation facilities can enable you to leverage their low latency high bandwidth connections to the cloud as well as providing a solid connection back to your on-premises corporate network.

Download this white paper to find out what you need to know about enabling the hybrid cloud in your organisation.



It's all about Webinars.

Marketing budgets are now focused on Webinars combined with Lead Generation.

If you wish to promote a Webinar we recommend at least a 3 to 4 week campaign prior to your event.

The iTWire campaign will include extensive adverts on our News Site and prominent Newsletter promotion and Promotional News & Editorial. Plus a video interview of the key speaker on iTWire TV which will be used in Promotional Posts on the iTWire Home Page.

Now we are coming out of Lockdown iTWire will be focussed to assisting with your webinars and campaigns and assistance via part payments and extended terms, a Webinar Business Booster Pack and other supportive programs. We can also create your adverts and written content plus coordinate your video interview.

We look forward to discussing your campaign goals with you. Please click the button below.


Sam Varghese

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.

Share News tips for the iTWire Journalists? Your tip will be anonymous




Guest Opinion

Guest Interviews

Guest Reviews

Guest Research

Guest Research & Case Studies

Channel News