United States: "WannaCry": The Global Ransomware Attack

In Short

The Situation: Detected on the morning of May 12, 2017, "WannaCry," a widespread ransomware attack, is impacting institutions in nearly 150 nations around the world.

The Response: Specific actions, including the application of the Microsoft patch for the MS17-010 SMB vulnerability, are recommended.

Looking Ahead: Given the risks involved, companies should ensure that their insurance policies supply adequate coverage for ransomware attacks.


A new and widespread ransomware attack is affecting institutions around the world, with reports of hundreds of thousands of infections in nearly 150 countries, including the United States, United Kingdom, Spain, Russia, Taiwan, France, and Japan. The impact is expected to expand. Reports indicate that the software can run in 27 different languages. The latest version of this ransomware, known as WannaCry, WCry, or Wanna Decryptor, was just discovered on the morning of May 12, 2017, and spread rapidly and widely in a matter of hours. The ransom demanded is reported to be .1781 bitcoins, or roughly US$300.

Among the organizations affected are large transportation firms in the United States, telecommunications firms in Europe, a global automaker, universities in China, Germany's federal railway system, and Russia's Interior Ministry. The most dangerous and disruptive attacks were to Britain's public health system, which resulted in surgeries being rescheduled and patients being turned away from emergency rooms.

The Need to Patch Systems

Ransomware spreads easily when it encounters unpatched or outdated software. This risk may only be exacerbated given recent reports that NSA tools designed to exploit compromised systems have been leaked and are falling into the hands of cyber criminals. If more NSA tools are released, the need to patch known vulnerabilities proactively will grow.

We recommend that systems be patched immediately. Reports indicate the hackers behind the WannaCry campaign are accessing enterprise servers either through a Remote Desktop Protocol ("RDP") compromise or through the exploitation of a critical Windows SMB vulnerability. Microsoft released a security update for that vulnerability (MS17-010) on March 14, 2017, more than two months ago.

What Steps to Take

What to Do If Infected with Ransomware

  • Apply the Microsoft patch for the MS17-010 SMB vulnerability dated March 14, 2017.
  • Isolate the infected computers immediately. Infected systems should be removed from the network as soon as possible to prevent ransomware from attacking network or share drives.
  • Isolate or power-off affected devices that have not yet been completely corrupted. This may afford more time to clean and recover data, contain damage, and prevent worsening conditions.
  • Secure backup data immediately by taking it offline.
  • Inspect backups for malware.
  • Systems infected with ransomware are often also infected with other malware. Thus, responding to a ransomware attack should include an evaluation of relevant systems for the presence of other malware.
  • Forensics typically will be unable to decrypt files once they are infected with ransomware. But, on occasion, the encryption key may be recovered from memory or the executable payload.
  • Once infected, you should remove the infected system from the network, but do not power off.
  • Separately, a good provider can assist you in determining (i) how malware was introduced into the IT environment; (ii) the scope of the compromise; and (iii) the malware's functionality, if not a documented variant with known functionality. Consider engaging outside counsel to retain and direct the forensic investigation to maximize privilege protection.

Business Continuity

  • Backups are critical in ransomware recovery and response. If an infection occurs, a backup may be the best way to recover your critical data.
  • Back up data regularly. Verify the integrity of those backups, as well as restoration systems to ensure they are working.
  • Conduct an annual penetration test and vulnerability assessment and address identified vulnerabilities.
  • Secure your backups. Ensure backups are not permanently connected to the computers and networks they are backing up.

Should You Pay the Ransom?

Law enforcement advises against payment of ransom. At the same time, they recognize that these determinations need to be made on a case-by-case basis. For instance, a ransomware victim must evaluate the technical feasibility, timeliness, and cost of restarting systems from backup—if a backup is even available. If mission-critical data is involved, or time is of the essence, paying a ransom may be the only viable recourse.

However, you should consider that with payment of ransom, the following outcomes are possible: (i) you do not get the decryption key; (ii) you get a decryption key that does not work; (iii) you are asked to pay a second ransom to get the decryption key; and/or (iv) you get the decryption key, it works, but you are immediately targeted again.

Insurance Considerations

We recommend that companies review their insurance programs to make sure they have adequate coverage for ransomware attacks. Coverage is available for investigative costs, ransom payments, and data restoration under cyber policies, property policies, and kidnap and ransom policies. However, such coverage is typically not part of the standard policy form and must be added by endorsement or coverage extension. Companies that fall victim to an attack should immediately assess their insurance as coverage may be impaired if the policyholder fails to notify the insurer and/or obtain consent before making payments.


Three Key Takeaways

1. Since ransomware spreads easily when it encounters unpatched or outdated software, it is critical that systems be patched immediately.

2. In order to minimize the impact of a ransomware infection, back up data regularly. If an infection occurs, secure the backup data by taking it offline.

3. If faced with a situation where a ransom must be paid, it is important to remember that payment does not guarantee the end of the situation. The attackers may not provide a working decryption key or you may be immediately targeted again

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

To print this article, all you need is to be registered on Mondaq.com.

Click to Login as an existing user or Register so you can print this article.

Authors
Mauricio F. Paez
Richard J. Johnson
 
In association with
Related Video
Up-coming Events Search
Tools
Print
Font Size:
Translation
Channels
Mondaq on Twitter
 
Register for Access and our Free Biweekly Alert for
This service is completely free. Access 250,000 archived articles from 100+ countries and get a personalised email twice a week covering developments (and yes, our lawyers like to think you’ve read our Disclaimer).
 
Email Address
Company Name
Password
Confirm Password
Position
Mondaq Topics -- Select your Interests
 Accounting
 Anti-trust
 Commercial
 Compliance
 Consumer
 Criminal
 Employment
 Energy
 Environment
 Family
 Finance
 Government
 Healthcare
 Immigration
 Insolvency
 Insurance
 International
 IP
 Law Performance
 Law Practice
 Litigation
 Media & IT
 Privacy
 Real Estate
 Strategy
 Tax
 Technology
 Transport
 Wealth Mgt
Regions
Africa
Asia
Asia Pacific
Australasia
Canada
Caribbean
Europe
European Union
Latin America
Middle East
U.K.
United States
Worldwide Updates
Check to state you have read and
agree to our Terms and Conditions

Terms & Conditions and Privacy Statement

Mondaq.com (the Website) is owned and managed by Mondaq Ltd and as a user you are granted a non-exclusive, revocable license to access the Website under its terms and conditions of use. Your use of the Website constitutes your agreement to the following terms and conditions of use. Mondaq Ltd may terminate your use of the Website if you are in breach of these terms and conditions or if Mondaq Ltd decides to terminate your license of use for whatever reason.

Use of www.mondaq.com

You may use the Website but are required to register as a user if you wish to read the full text of the content and articles available (the Content). You may not modify, publish, transmit, transfer or sell, reproduce, create derivative works from, distribute, perform, link, display, or in any way exploit any of the Content, in whole or in part, except as expressly permitted in these terms & conditions or with the prior written consent of Mondaq Ltd. You may not use electronic or other means to extract details or information about Mondaq.com’s content, users or contributors in order to offer them any services or products which compete directly or indirectly with Mondaq Ltd’s services and products.

Disclaimer

Mondaq Ltd and/or its respective suppliers make no representations about the suitability of the information contained in the documents and related graphics published on this server for any purpose. All such documents and related graphics are provided "as is" without warranty of any kind. Mondaq Ltd and/or its respective suppliers hereby disclaim all warranties and conditions with regard to this information, including all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement. In no event shall Mondaq Ltd and/or its respective suppliers be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortious action, arising out of or in connection with the use or performance of information available from this server.

The documents and related graphics published on this server could include technical inaccuracies or typographical errors. Changes are periodically added to the information herein. Mondaq Ltd and/or its respective suppliers may make improvements and/or changes in the product(s) and/or the program(s) described herein at any time.

Registration

Mondaq Ltd requires you to register and provide information that personally identifies you, including what sort of information you are interested in, for three primary purposes:

  • To allow you to personalize the Mondaq websites you are visiting.
  • To enable features such as password reminder, newsletter alerts, email a colleague, and linking from Mondaq (and its affiliate sites) to your website.
  • To produce demographic feedback for our information providers who provide information free for your use.

Mondaq (and its affiliate sites) do not sell or provide your details to third parties other than information providers. The reason we provide our information providers with this information is so that they can measure the response their articles are receiving and provide you with information about their products and services.

If you do not want us to provide your name and email address you may opt out by clicking here .

If you do not wish to receive any future announcements of products and services offered by Mondaq by clicking here .

Information Collection and Use

We require site users to register with Mondaq (and its affiliate sites) to view the free information on the site. We also collect information from our users at several different points on the websites: this is so that we can customise the sites according to individual usage, provide 'session-aware' functionality, and ensure that content is acquired and developed appropriately. This gives us an overall picture of our user profiles, which in turn shows to our Editorial Contributors the type of person they are reaching by posting articles on Mondaq (and its affiliate sites) – meaning more free content for registered users.

We are only able to provide the material on the Mondaq (and its affiliate sites) site free to site visitors because we can pass on information about the pages that users are viewing and the personal information users provide to us (e.g. email addresses) to reputable contributing firms such as law firms who author those pages. We do not sell or rent information to anyone else other than the authors of those pages, who may change from time to time. Should you wish us not to disclose your details to any of these parties, please tick the box above or tick the box marked "Opt out of Registration Information Disclosure" on the Your Profile page. We and our author organisations may only contact you via email or other means if you allow us to do so. Users can opt out of contact when they register on the site, or send an email to unsubscribe@mondaq.com with “no disclosure” in the subject heading

Mondaq News Alerts

In order to receive Mondaq News Alerts, users have to complete a separate registration form. This is a personalised service where users choose regions and topics of interest and we send it only to those users who have requested it. Users can stop receiving these Alerts by going to the Mondaq News Alerts page and deselecting all interest areas. In the same way users can amend their personal preferences to add or remove subject areas.

Cookies

A cookie is a small text file written to a user’s hard drive that contains an identifying user number. The cookies do not contain any personal information about users. We use the cookie so users do not have to log in every time they use the service and the cookie will automatically expire if you do not visit the Mondaq website (or its affiliate sites) for 12 months. We also use the cookie to personalise a user's experience of the site (for example to show information specific to a user's region). As the Mondaq sites are fully personalised and cookies are essential to its core technology the site will function unpredictably with browsers that do not support cookies - or where cookies are disabled (in these circumstances we advise you to attempt to locate the information you require elsewhere on the web). However if you are concerned about the presence of a Mondaq cookie on your machine you can also choose to expire the cookie immediately (remove it) by selecting the 'Log Off' menu option as the last thing you do when you use the site.

Some of our business partners may use cookies on our site (for example, advertisers). However, we have no access to or control over these cookies and we are not aware of any at present that do so.

Log Files

We use IP addresses to analyse trends, administer the site, track movement, and gather broad demographic information for aggregate use. IP addresses are not linked to personally identifiable information.

Links

This web site contains links to other sites. Please be aware that Mondaq (or its affiliate sites) are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of these third party sites. This privacy statement applies solely to information collected by this Web site.

Surveys & Contests

From time-to-time our site requests information from users via surveys or contests. Participation in these surveys or contests is completely voluntary and the user therefore has a choice whether or not to disclose any information requested. Information requested may include contact information (such as name and delivery address), and demographic information (such as postcode, age level). Contact information will be used to notify the winners and award prizes. Survey information will be used for purposes of monitoring or improving the functionality of the site.

Mail-A-Friend

If a user elects to use our referral service for informing a friend about our site, we ask them for the friend’s name and email address. Mondaq stores this information and may contact the friend to invite them to register with Mondaq, but they will not be contacted more than once. The friend may contact Mondaq to request the removal of this information from our database.

Security

This website takes every reasonable precaution to protect our users’ information. When users submit sensitive information via the website, your information is protected using firewalls and other security technology. If you have any questions about the security at our website, you can send an email to webmaster@mondaq.com.

Correcting/Updating Personal Information

If a user’s personally identifiable information changes (such as postcode), or if a user no longer desires our service, we will endeavour to provide a way to correct, update or remove that user’s personal data provided to us. This can usually be done at the “Your Profile” page or by sending an email to EditorialAdvisor@mondaq.com.

Notification of Changes

If we decide to change our Terms & Conditions or Privacy Policy, we will post those changes on our site so our users are always aware of what information we collect, how we use it, and under what circumstances, if any, we disclose it. If at any point we decide to use personally identifiable information in a manner different from that stated at the time it was collected, we will notify users by way of an email. Users will have a choice as to whether or not we use their information in this different manner. We will use information in accordance with the privacy policy under which the information was collected.

How to contact Mondaq

You can contact us with comments or queries at enquiries@mondaq.com.

If for some reason you believe Mondaq Ltd. has not adhered to these principles, please notify us by e-mail at problems@mondaq.com and we will use commercially reasonable efforts to determine and correct the problem promptly.