Black Arrow Cyber Threat Briefing 05 November 2021

Welcome to this week’s Black Arrow Cyber Threat Briefing – a weekly digest, collated and curated by our cyber experts to provide senior and middle management with an easy to digest round up of the most notable threats, vulnerabilities, and cyber related news from the last week.

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Top Cyber Stories of the Last Week

500 Million Attempted Ransomware Attacks (So Far) in 2021, With No Sign Of Slowing

So far, 2021 is stacking up to be the most costly and dangerous year on record for the volume of ransomware attacks, SonicWall said in a new report.

The security provider has logged nearly 500 million attempted ransomware attacks through September, 2021, with 1,748 attempts per customer in that nine-month period. The overall total of 495 million to date amounts to a 148 percent surge as compared to the same period last year. SonicWall expects to record 714 million attempted ransomware attacks by the close of 2021, a 134 percent skyrocket over last year’s totals. https://www.msspalert.com/cybersecurity-research/500-million-attempted-ransomware-attacks-so-far-in-2021/

Top 10 Ways Attackers Are Increasing Pressure On Their Ransomware Victims To Pay

Sophos researchers have detailed how ransomware attackers are implementing a wide range of ruthless pressure tactics to persuade victims to pay the ransom.

Their research is based on evidence and insight from a team of 24/7 incident responders who help organisations under active cyberattack. It highlights the shift in ransomware pressure techniques from solely encrypting data to including other pain points, such as harassing employees.

Since organisations have become better at backing up their data and restoring encrypted files from backups, attackers are supplementing their ransom demands with additional extortion measures that increase the pressure to pay.

For example, the Sophos Rapid Response team has seen cases where attackers email or phone a victim’s employees, calling them by their name and sharing personal details they’ve stolen – such as any disciplinary actions or passport information – with the aim of scaring them into demanding their employer pays the ransom. This kind of behavior shows how ransomware has shifted from a purely technical attack targeting systems and data into one that also targets people. https://www.helpnetsecurity.com/2021/11/04/attackers-pressure-ransomware-victims/

40% Of Organisations Suffered A Cloud-Based Data Breach In The Past 12 Months

Despite increasing cyber attacks targeting data in the cloud, 83% of businesses are still failing to encrypt half of the sensitive data they store in the cloud, raising even greater concerns as to the impact cyber criminals can have. 40% of organisations have experienced a cloud-based data breach in the past 12 months, according to a study conducted by 451 Research.

Cloud adoption is on the rise and businesses are continuing to diversify the way they use cloud solutions. Globally, 57% of respondents reported they make use of two or more cloud infrastructure providers, whilst 24% of organisations flagged that the majority of their workloads and data now reside in the cloud. https://www.helpnetsecurity.com/2021/11/02/experienced-cloud-based-data-breach/

Midsize Business Cyber Attacks: A Security Reality Check

Ransomware bombshells hit large enterprises. Carpet-bomb cyberattacks target MSP software supply chains and their small business customers. But what’s the state of cybersecurity among midsize businesses?

Actually, that landscape also faces its share of digital bombshells. Indeed, nearly two in three midsize organisations have suffered a ransomware attack in the past 18 months and 20 percent of them spent at least $250,000 to recover from it, according to research by UncommonX, an MSSP that leans heavily on its own SaaS-based solutions..

The Chicago-based MSSP’s newly released State of Cybersecurity for Midsize Organisations found that smaller companies are often not properly prepared to fend off a cyber attack nor do they engage in adequate network monitoring. In short, cybersecurity is often not enough of a priority within midsize companies. https://www.msspalert.com/cybersecurity-news/midsize-business-cyberattacks-a-security-reality-check/

70% Of Dev Teams Admit To Skipping Security Steps

According to a new study by Invicti Security, 70% of development teams always or frequently skip security steps due to time pressures when completing projects. This explains why, in the average organisation, 33% of security issues in remediation at any given time come from production code.

Security and development teams spend every day inside a catch-22: relentless demand for continued digital innovation amid increasing security threats to a sprawling attack surface. While there are some bright spots emerging on the road to secure innovation, these professionals are stressed — and too often make bad choices. https://venturebeat.com/2021/10/27/report-70-of-dev-teams-admit-to-skipping-security-steps/

79% Of IT Teams Have Seen Increase In Endpoint Security Breaches

According to a new report by HP Wolf Security, 79% of IT teams have seen an increase in rebuild rates, indicating that hackers are becoming more successful at breaching the endpoint and compromising organisations’ devices and data.

This sudden increase in rebuild rates is particularly affecting enterprises with 1,000 employees or more — organisations of this kind have the highest average number of rebuilds per month at 67.3. The study also highlights that employees are clicking on more malicious emails. Whether this is because people are less vigilant working from home or because they find it harder to determine what is safe to open, the rising number of rebuilds suggests that hackers have become more successful at breaching the endpoint through malicious links. https://venturebeat.com/2021/10/28/report-79-of-it-teams-have-seen-increase-in-endpoint-security-breaches/

Enterprises With Subsidiaries More Prone To Cyber Attacks, Study Says

Global enterprises with multiple subsidiaries are more exposed to cybersecurity threats and have more difficulty managing risk than companies with no, or fewer, subsidiaries, according to an Osterman Research report commissioned by CyCognito.

The study surveyed 201 organisations with at least 10 subsidiaries and at least 3,000 employees or $1 billion in annual revenue.

Despite being extremely confident about running effective subsidiary risk management, about 67% of respondents said their organisations had either experienced a cyberattack where the attack chain included a subsidiary, or that they lacked the ability or information to rule out the possibility.

About half of the respondents acknowledged that they wouldn't be surprised if a cyberbreach were to occur "tomorrow." https://www.csoonline.com/article/3639014/enterprises-with-subsidiaries-more-prone-to-cyberattacks-study-says.html

Cisco Talos Reports New Variant Of Babuk Ransomware Targeting Exchange Servers

Cisco Talos has a warning out for companies about a new variant of the Babuk ransomware. The security researchers discovered the campaign in mid-October and think that the variant has been active since July 2021. The new element in this attack is an unusual infection chain technique.

The researchers think that the initial infection vector is an exploitation of ProxyShell vulnerabilities in Microsoft Exchange Server through the deployment of China Chopper web shell.

Babuk can affect several hardware and software platforms but this version is targeting Windows. The ransomware encrypts the target's machine, interrupts the system backup process and deletes the volume shadow copies. https://www.techrepublic.com/article/cisco-talos-reports-new-variant-of-babuk-ransomware-targeting-exchange-servers/

Ransomware Gangs Target Corporate Financial Activities

The FBI is warning about a fresh extortion tactic: threatening to tank share prices for publicly held companies.

Ransomware gangs are zeroing in on publicly held companies with the threat of financial exposure in an effort to encourage ransom payments, the FBI is warning.

In an alert issued this week the Bureau said that activity over the course of the past year shows a trend toward targeting companies when they’re coming up to “significant, time-sensitive financial events,” such as quarterly earnings reports and mandated SEC filings, initial public offerings, M&A activity, and so on. The idea is to ratchet up the extortion thumb-screws by threatening to leak stolen information relevant to these events if the target doesn’t pay up.

Impending events that could affect a victim’s stock value, such as announcements [or] mergers and acquisitions, encourage ransomware actors to target a network or adjust their timeline for extortion. https://threatpost.com/ransomware-corporate-financial/175940/

Web Of Deceit: The Rising Threat Of Ransomware

With payouts of almost £260m last year alone, it has become the biggest – and easiest – money-earner available to hackers.

Heists at famous jewellers usually involve masked men, guns, shouting and terrified staff and customers. That was indeed the scene in August 2009 at the London branch of Graff, the famous diamond merchants, when a gang stole around £40million worth of jewels. They were caught not long after.

But the latest heist on Graff, revealed recently, was quieter. No guns, no masks, no shouting. Instead the company – which supplies a dizzying parade of top-name stars such as the Beckhams, Tom Hanks and Tamara Ecclestone – faced a demand, displayed on a computer screen, for millions of pounds, payable to a group of Russian hackers.

Graff, like hundreds of companies around the world, had been hit by “ransomware”: an attachment to an email delivered a malicious program which let in hackers, who scrambled all the files on its computer systems using an uncrackable computer code, for which they had the digital “key”.

They’d hand it over in exchange for a payment worth millions of pounds in untraceable cryptocurrency such as bitcoin, where transactions are made between digital “wallets” that do not pass through any bank and are not tied to any identity.

Without the key, the systems are useless. The option is to restore the system from backups – but frequently the hackers will have targeted those too. https://www.telegraph.co.uk/news/2021/11/06/web-deceit-rising-threat-ransomware/

While Businesses Are Ramping Up Their Risk Mitigation Efforts, They Could Be Doing More

Zurich North America and Advisen have released a survey of corporate risk managers and insurance buyers revealing current views about information security and cyber risk management.

The survey results indicate that risk professionals are increasingly aware of their intensifying cyber risks and the need to manage them using risk mitigation and risk transfer. However, a deeper dive into the numbers found that there is much room for improvement in building cyber resilience.

Sixty-five percent of respondents have invested in cyber security solutions to mitigate risk, which means that 35 percent of respondents still have not. https://www.helpnetsecurity.com/2021/11/03/gaps-risk-mitigation-efforts/

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Threats

Ransomware

• Ransomware Attacks Increased 148% In Q3 2021, Showing No Sign Of Slowing - Help Net Security

• Conti Group Leak Celebs’ Data After Ransom Attack on Jeweller - Infosecurity Magazine (infosecurity-magazine.com)

• Babuk Ransomware Seen Exploiting ProxyShell Vulnerabilities | SecurityWeek.Com

• Toronto Subways Hit By Ransomware As US Lawmakers Slam 'Burdensome' Cyber Security rules | ZDNet

• FBI Says Ransomware Gangs Are Using Future Merger And Acquisition Info To Pressure Victims - The Record By Recorded Future

• BlackMatter Ransomware Moves Victims To LockBit After Shutdown (Bleepingcomputer.Com)

Phishing

• Phishing Attack Blends Spoofed Amazon Order and Fraudulent Customer Service Agents (darkreading.com)

Other Social Engineering

• Consumers Warned About Rise in Call Center Threats - Infosecurity Magazine (infosecurity-magazine.com)

• “Customer Complaint” Email Scam Preys On Your Fear Of Getting Into Trouble At Work – Naked Security (Sophos.Com)

• Voice Phishing Attack Spoofs Amazon To Steal Credit Card Information - Techrepublic

Malware

• Stealthier Version Of Mekotio Banking Trojan Spotted In The Wild (Bleepingcomputer.Com)

• 77% Of Rootkits Are Used For Espionage Purposes - Help Net Security

Mobile

• Why You Should Delete Google Chrome On Your Phone (forbes.com)

• Phishing Attacks Are Harder To Spot On Your Smartphone. That's Why Hackers Are Using Them More | ZDNet

• Android Patches Actively Exploited Zero-Day Kernel Bug | Threatpost

• Stealthy Trojan That Roots Android Devices Makes Its Way On App Stores | CSO Online

• Android Hit By AbstractEmu Malware • The Register

Vulnerabilities

• Apple macOS Flaw Allows Kernel-Level Compromise | Threatpost

• BrakTooth Bluetooth Bugs Bite: Exploit Code, PoC Released | Threatpost

• Get Patching: Cisco Warns Of These Critical Product Vulnerabilities | ZDNet

• 50% Of Internet-Facing Gitlab Installations Are Still Affected By A RCE Flaw - Security Affairs

• Critical RCE Vulnerability Reported in Linux Kernel's TIPC Module (thehackernews.com)

Data Breaches/Leaks

• UK Labour Party Blames Breach Of Members’ Data On Third-Party Cyber Attack | Techcrunch

• Medical School Exposes Personal Data Of Thousands Of Students | ZDNet

Cryptocurrency/Cryptojacking

• Squid Game Crypto Scammers Rip Off Investors for Millions | Threatpost

• Threat Actors Stole $55m Worth Of Cryptocurrency From bZx DeFi Platform - Security Affairs

OT, ICS, IIoT and SCADA

• Keeping An Eye On Critical Infrastructure And Industrial Sys • The Register

Privacy

• Facebook Kills Its Facial Recognition System, Citing 'Societal Concerns,' Uncertain Rules From Regulators - CyberScoop

Parental Controls

• 44% of Parents Struggle to Follow Tech Rules They Set for Their Kids (darkreading.com)

• Annual Cost of Child Identity Fraud Almost $1Bn - Infosecurity Magazine (infosecurity-magazine.com)

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Reports Published in the Last Week

• Report: More Than Half Of Organisations Do Not Effectively Defend Against Cyberattacks - TechRepublic

• Cyber Security Threat Landscape Growing In Sophistication, Complexity And Impact - Help Net Security

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Other News

• Hackers Are Stealing Data Today So Quantum Computers Can Crack It In A Decade | MIT Technology Review

• Another Cyber Security Awareness Month Has Passed and Little Has Changed | SecurityWeek.Com

• Magecart Credit Card Skimmer Avoids VMs to Fly Under the Radar | Threatpost

• Organisations Seldom Prioritize Cyber Security Over Business Outcomes - Help Net Security

• Are Your Passwords On The Dark Web? How To Check What Leaked After A Data Breach - CNET

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