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Cyberrisk Management Tips for Businesses Amid the Russia-Ukraine War

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A wide range of risks are trickling down from Russia’s assault on Ukraine, from sanctions compliance to supply chain disruption to business interruption. Cyberrisk has also drawn considerable concern and the threat landscape continues to evolve rapidly, though the details of increased cyberattack activity are not yet fully known and may be largely unfolding below the surface right now. Attacks attributed to Russia have been launched against a range of targets in Ukraine, including new destructive malware campaigns, targeted information-gathering against a range of civilian and government targets, and attacks on critical infrastructure.

Concerns about escalating cyber activity around the crisis are a vivid reminder of the importance of knowing your threat model and adjusting your risk management priorities accordingly. According to experts ranging from independent cybersecurity professionals to officials at the Cybersecurity and Infrastructure Security Agency (CISA), organizations at greatest risk right now include critical infrastructure, banks and other financial services firms, and of course key service providers in Ukraine or Russia.

Spill-over to other businesses is more likely with cyber conflict, however, particularly given Russia is one of the most advanced and aggressive nation-state cyber threat actors—remember the crippling global attack known as NotPetya that upended supply chains in 2017 resulted from a Russian cyberattack on Ukraine. That is not to say that there is necessarily cause for panic, simply that the effects of cyber conflict can be unexpected, widespread and potentially severe.

At this point, for most companies that are not in a high-risk position as a direct result of the war, the best course of action for risk professionals is to focus on ensuring your company has an updated and detailed incident response plan on hand and distributing it to relevant members of the organization, reviewing and potentially strengthening your general cybersecurity posture, and reminding employees about cyber hygiene.

For example, given the tragic events and breaking developments around the conflict, many may be glued to news or social media. Unfortunately malicious actors are known to take advantage of such situations by posting phishing links on social media with alleged news updates or email scams that purport to collect charity donations. Remind employees about these perils and offer refreshers on how to spot phishing scams and the need to exercise caution with links in emails or on social media.

“In addition to taking a fresh look at plans and other policies within an organization’s cybersecurity risk framework, businesses should consider a few common-sense tips to prepare for a potential cyber incident,” advised Annmarie Giblin, partner at Hinshaw & Culbertson and leader of the firm’s data privacy and cybersecurity practice. Giblin recommended risk professionals take the following steps to boost cyberrisk management efforts right now:

  1. Print out a hard copy of any necessary polices and plans, like the cyber incident response plan, the business’ cyber insurance policy and a contact list for the organization, so you have them available in the event you cannot access your system and need to communicate with employees through alternative methods.
  2. Remind your employees about common cyber scams and reiterate that there will be no retaliation for reporting a cybersecurity mistake, such as clicking on a bad link.
  3. Have key members of the executive team and incident response team set up a secure but alternate method of communication, such as sharing phone numbers or creating a different off system email address to communicate in the event the business’ systems are not available or not trusted.
  4. Keep track of the latest threats and get the research over to your IT team so they can update your firewall, and/or contact the business’ security services provider and make sure they are aware of and addressing these new malware strains.
  5. Evaluate and if possible, test your business continuity plans. Organizations should be asking themselves, “What does the work day look like without access to the business’ systems?” and “How can we still work without any technology support?”

Cyber insurance firm Coalition has put together a guide to basic cybersecurity measures to help organizations—policyholders and otherwise—proactively manage cyberrisk and reduce the likelihood of a cybersecurity incident. The guide provides 10 key steps to help improve cyberrisk management, highlighting the basics of each mitigation measure, tips on how to implement, and even some vendor suggestions for credible options, if desired. Coalition notes this may be particularly helpful for small and mid-sized businesses that do not necessarily have dedicated in-house information security experts, but it could also be worth a look for any risk professional who wants an overview of mitigations that should be in place or ways to fill those gaps. Check it out here: https://info.coalitioninc.com/rs/566-KWJ-784/images/DLC-2020-12-2021-Coalition-Cybersecurity-Guide.pdf

For more resources on cyberrisk management best practices, cyber incident response, cyber insurance considerations, and more, check out Risk Management Magazine’s extensive cyber coverage here. Some of the highlights below can help address key concerns that you—or your board—may have right now, and offer actionable strategies to strengthen your cyberrisk readiness and boost employee cyber hygiene:

North Korea Now Suspected in Ransomware Attack

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The massive cyberattack that has struck businesses, government agencies and citizens in more than 150 countries may be tied to hackers affiliated with North Korea. Called WannaCry, the ransomware encrypts the victim’s hard drive and demands a ransom of about $300 in the virtual currency bitcoin.

According to the Washington Post:

Several security researchers studying “WannaCry” on Monday found evidence of possible connections to, for instance, the crippling hack on Sony Pictures Entertainment in 2014 attributed by the U.S. government to North Korea. That hack occurred in the weeks before Sony released a satiric movie about a plot to kill North Korean leader Kim Jong Un.

The New York Times reported that the malicious software, based on a vulnerability included in the National Security Agency tools published by the Shadow Brokers hacker group, was distributed via email. The ransomware takes advantage of vulnerabilities in Microsoft Windows systems, generating the largest ransomware attack to date. Although the flaw was patched by the company months ago, the wide spread of the attack illustrates how many users fail to update their software. Institutions and government agencies affected included the Russian Interior Ministry, FedEx in the United States and Britain’s National Health Service.

Organizations are advised to save their data and take other measures to avoid being hacked. Kroll said that while the particular ransomware variation involved in hundreds of thousands of incidents has now been rendered largely harmless, its cyber security and investigations team “strongly recommends that organizations recognize that a small change in the malware code could reactivate it. So action should be taken in conjunction with your technology unit to reduce your risk and prepare for inevitable future similar attacks. If the malware has entered your network, it has the ability to spread—and spread rapidly.”

According to Kroll:

  • Obsolete versions of Microsoft Windows are particularly vulnerable. We understand that there may be very specific circumstances that require you to use versions that are no longer supported, but now is the time to revisit the topic. See if there is any way you could use a supported operating system running a virtual version of the operating system you need.
  • Microsoft has been working to roll out updates that can fix the underlying security weakness that this malware exploits. You should make sure that both your personal and business machines running Windows are updated. We know that many people don’t want to take the time to close out all their files and restart their computers to allow updates to occur, but this is an important defense against the WannaCry ransomware. As an indicator of how serious the threat is, note that Microsoft has even released a security patch for the old Windows XP system. Please take steps to assure that all relevant machines running the Windows operating system are updated.
  • Organizations that don’t have well-thought-out backup and recovery plans are also very vulnerable. Management should be asking if there is a plan to assure that all important files are backed up in a way that will prevent a ransomware infection from attacking both the primary files and the backups.

President Trump ordered homeland security adviser Thomas P. Bossert to coordinate a government response to the spread of malware and find out who was responsible. According to the Times:

“The source of the attack is a delicate issue for the United States because the vulnerability on which the malicious software is based was published by a group called the Shadow Brokers, which last summer began publishing cybertools developed by the National Security Agency.”

Government investigators, while not publicly acknowledging that the computer code was developed by American intelligence agencies, say they are still investigating how the code got out. There are many theories, but increasingly it looks as though the initial breach came from an insider, perhaps a government contractor.

In a report, How to Protect Your Networks from Ransomware, the U.S. government recommends that users and administrators take preventative measures, including:

  • Implement an awareness and training program. Because end users are targets, employees and individuals should be aware of the threat of ransomware and how it is delivered.
  • Enable strong spam filters to prevent phishing emails from reaching the end users and authenticate inbound email using technologies like Sender Policy Framework (SPF), Domain Message Authentication Reporting and Conformance (DMARC), and DomainKeys Identified Mail (DKIM) to prevent email spoofing.
  • Scan all incoming and outgoing emails to detect threats and filter executable files from reaching end users.
  • Configure firewalls to block access to known malicious IP addresses.
  • Patch operating systems, software, and firmware on devices. Consider using a centralized patch management system.
  • Set anti-virus and anti-malware programs to conduct regular scans automatically.
  • Manage the use of privileged accounts based on the principle of least privilege: no users should be assigned administrative access unless absolutely needed; and those with a need for administrator accounts should only use them when necessary.

Ransomware Threats Jump 300%

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Businesses have seen a huge increase in ransomware threats—300% from 2015, according to the FBI, which also reports there were 2,400 ransomware complaints in 2015. In addition to its growing frequency, the means of attack have also improved significantly, as hackers get better at social engineering and at developing malware.

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Unlike other types of cyberattack, ransomware attacks are not about extracting data, they are about freezing access, holding businesses functionally hostage, according to Risk Management. When this type of malware infects a system, it encrypts files and documents and demands a ransom, typically in the form of digital currency such as bitcoin, in exchange for a decryption key.

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The most frequent targets of attacks, 23%, were government entities, according to Hiscox. The category of business services was second at 18% and finance and insurance institutions followed with 13% of the attacks.
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Because the encryption can be crippling and circumventing it is difficult, the FBI advises that businesses may be better off paying the ransom, especially if the company’s system backup has also been infected.

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The Rise of Malvertising

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malvertising cyber security

LAS VEGAS—One of the hottest topics in cyberthreat detection right now is the rise of malvertising, online advertising with hidden malware that is distributed through legitimate ad networks and websites. On Monday, Yahoo! acknowledged that one of these attacks had been abusing their ad network since July 28—potentially the biggest single attacks, given the site’s 6.9 billion monthly visits, security software firm Malwarebytes reported.

In the first half of this year the number of malvertisements has jumped 260% compared to the same period in 2014, according a new study released at the Black Hat USA conference here today by enterprise digital footprint security company RiskIQ. The sheer number of unique malvertisements has climbed 60% year over year.

“The major increase we have seen in the number of malvertisements over the past 48 months confirms that digital ads have become the preferred method for distributing malware,” said James Pleger, RiskIQ’s director of research. “There are a number of reasons for this development, including the fact that malvertisements are difficult to detect and take down since they are delivered through ad networks and are not resident on websites. They also allow attackers to exploit the powerful profiling capabilities of these networks to precisely target specific populations of users.”

How does malvertising work—and why is it taking off right now? “The rise of programmatic advertising, which relies on software instead of humans to purchase digital ads, has generated unprecedented growth and introduced sophisticated targeting into digital ad networks,” the company explained. “This machine-to-machine ecosystem has also created opportunities for cyber criminals to exploit display advertising to distribute malware. For example, malicious code can be hidden within an ad, executables can be embedded on a webpage, or bundled within software downloads.”

The study also noted that, in 2014, there was significantly more exploit kit activity (which silently installs malware without end user intervention) than fake software updates that require user consent. In 2015, however, fake software updates have surpassed exploit kits as the most common technique for installing malware. Fake Flash updates have replaced fake antivirus and fake Java updates as the most common method used to lure victims into installing various forms of malware including ransomware, spyware and adware.

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Last week, enterprise security firm Bromium also released a new study focused on the rising threat of malvertising, finding that these Flash exploits have increased 60% in the past six months and the growth of ransomware families has doubled every year since 2013.

“For the last couple of years, Internet Explorer was the source of the most exploits, but before that it was Java, and now it is Flash; what we are witnessing is that security risk is a constant, but it is only the name that changes,” said Rahul Kashyup, senior vice president and chief security architect at Bromium. “Hackers continue to innovate new exploits, new evasion techniques and even new forms of malware—recently ransomware—preying on the most popular websites and commonly used software.”

One of the riskiest aspects of these exploits is that users do not have to be accessing sites that seem remotely suspect to be exposed. According to Bromium’s research, more than 58% of malvertisments were delivered through news websites (32%) and entertainment websites (26%). Notable websites unknowingly hosting malvertising included cbsnews.com, nbcsports.com, weather.com, boston.com and viralnova.com, the firm reported.

With that in mind, IT and cybersecurity teams have to adapt to meet these new threats, which are evolving far faster than detection tools, including antivirus, behavioral analysis, network intrusion detection, and the basic safe browsing guidelines issued to employees regarding their use of work devices.

“The key takeaway from this report is that, at large, the Internet is increasingly becoming ‘untrustworthy.’ Attackers are now using popular websites to launch malware via online ads, which makes things difficult for IT security teams,” explained Rahul Kashyup, SVP and chief security architect at Bromium. “This risk should be well understood and factored in for any organization while building a ‘defense-in-depth’ security stack. Regular patching and updates definitely help to limit the exposure to potential attacks, but that might not be feasible for large organizations.

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It is advisable to evaluate non-signature based technologies that can thwart such attacks in a reliable way and prevent infections on end-user devices.

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According to Bromium, the websites that most frequently serve as malvertising attack sources are:

malvertising attack sources