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.

Top Cyber Stories of the Last Week

Ransomware Volumes Hit Record Highs As 2021 Wears On

Ransomware has seen a significant uptick so far in 2021, with global attack volume increasing by 151 percent for the first six months of the year as compared with the year-ago half. Meanwhile, the FBI has warned that there are now 100 different strains circulating around the world. From a hard-number perspective, the ransomware scourge hit a staggering 304.7 million attempted attacks. To put that in perspective, the firm logged 304.6 million ransomware attempts for the entirety of 2020.

https://threatpost.com/ransomware-volumes-record-highs-2021/168327/

Ransomware Gangs Recruiting Insiders To Breach Corporate Networks

The LockBit 2.0 ransomware gang is actively recruiting corporate insiders to help them breach and encrypt networks. In return, the insider is promised million-dollar payouts. Many ransomware gangs operate as a Ransomware-as-a-Service, which consists of a core group of developers, who maintain the ransomware and payment sites, and recruited affiliates who breach victims' networks and encrypt devices. Any ransom payments that victims make are then split between the core group and the affiliate, with the affiliate usually receiving 70-80% of the total amount. However, in many cases, the affiliates purchase access to networks from other third-party pentesters rather than breaching the company themselves. With LockBit 2.0, the ransomware gang is trying to remove the middleman and instead recruit insiders to provide them access to a corporate network.

https://www.bleepingcomputer.com/news/security/lockbit-ransomware-recruiting-insiders-to-breach-corporate-networks/

More Than 12,500 Vulnerabilities Disclosed In First Half Of 2021

Two new reports were released, covering data breaches and vulnerabilities in the first half of 2021, finding that there was a decline in the overall number of reported breaches but an increase in the number of vulnerabilities disclosed. The company's data breach report found that there were 1,767 publicly reported breaches in the first six months of 2021, a 24% decline compared to the same period last year. The number of reported breaches grew in the US by 1.5% while 18.8 billion records were exposed year to date, a 32% decline compared to the 27.8 billion records leaked in the first half of 2020.

https://www.zdnet.com/article/more-than-12500-vulnerabilities-disclosed-in-first-half-of-2021-risk-based-security/

New DNS Vulnerability Allows 'Nation-State Level Spying' On Companies

Security researchers found a new class of DNS vulnerabilities impacting major DNS-as-a-Service (DNSaaS) providers that could allow attackers to access sensitive information from corporate networks.

DNSaaS providers (also known as managed DNS providers) provide DNS renting services to other organisations that do not want to manage and secure yet another network asset on their own.

These DNS flaws provide threat actors with nation-state intelligence harvesting capabilities with a simple domain registration.

https://www.bleepingcomputer.com/news/security/new-dns-vulnerability-allows-nation-state-level-spying-on-companies/

Constant Review Of Third Party Security Critical As Ransomware Threat Climbs

Enterprises typically would give their third-party suppliers "the keys to their castle" after carrying out the usual checks on the vendor's track history and systems, according to a New York-based Forrester analyst who focuses on security and risk. They believed they had done their due diligence before establishing a relationship with the supplier, but they failed to understand that they should be conducting reviews on a regular basis, especially with their critical systems suppliers. Third-party suppliers should have the ability to deal with irregular activities in their systems and the appropriate security architecture in place to prevent any downstream effects, he added.

https://www.zdnet.com/article/constant-review-of-third-party-security-critical-as-ransomware-threat-climbs/

Kaseya Ransomware Attack Sets Off Race To Hack Service Providers

A ransomware attack in July that paralyzed as many as 1,500 organisations by compromising tech-management software from a company called Kaseya has set off a race among criminals looking for similar vulnerabilities, cyber security experts said. An affiliate of a top Russian-speaking ransomware gang known as REvil used two gaping flaws in software from Florida-based Kaseya to break into about 50 managed services providers (MSPs) that used its products, investigators said. Now that criminals see how powerful MSP attacks can be, "they are already busy, they have already moved on and we don’t know where," said head of the non-profit Dutch Institute for Vulnerability Disclosure, which warned Kaseya of the weaknesses before the attack.

https://www.reuters.com/technology/kaseya-ransomware-attack-sets-off-race-hack-service-providers-researchers-2021-08-03/

‘It’s Quite Feasible To Start A War’: Just How Dangerous Are Ransomware Hackers?

Secretive gangs are hacking the computers of governments, firms, even hospitals, and demanding huge sums. But if we pay these ransoms, are we creating a ticking time bomb? They have the sort of names that only teenage boys or aspiring Bond villains would dream up (REvil, Grief, Wizard Spider, Ragnar), they base themselves in countries that do not cooperate with international law enforcement and they don’t care whether they attack a hospital or a multinational corporation. Ransomware gangs are suddenly everywhere, seemingly unstoppable – and very successful.

https://www.theguardian.com/technology/2021/aug/01/crypto-criminals-hack-the-computer-systems-of-governments-firms-even-hospitals

Joint UK/US Advisory Detailing Top 30 Vulnerabilities Include Plenty Of Usual Suspects

A joint advisory from law enforcement agencies in the US, UK, and Australia this week tallied the 30 most-frequently exploited vulnerabilities. Perhaps not surprisingly, the list includes a preponderance of flaws that were disclosed years ago; everything on the list has a patch available for whoever wants to install it. But as we've written about time and again, many companies are slow to push updates through for all kinds of reasons, whether it's a matter of resources, know-how, or an unwillingness to accommodate the downtime often necessary for a software refresh. Given how many of these vulnerabilities can cause remote code execution—you don't want this—hopefully they'll start to make patching more of a priority.

https://www.wired.com/story/top-vulnerabilities-russia-nso-group-iran-security-news/

Average Total Cost Of A Data Breach Increased By Nearly 10% Year Over Year

Based on in-depth analysis of real-world data breaches experienced by over 500 organisations, the global study suggests that security incidents became more costly and harder to contain due to drastic operational shifts during the pandemic, with costs rising 10% compared to the prior year. Businesses were forced to quickly adapt their technology approaches last year, with many companies encouraging or requiring employees to work from home, and 60% of organisations moving further into cloud-based activities during the pandemic. The new findings suggest that security may have lagged behind these rapid IT changes, hindering organizations’ ability to respond to data breaches.

https://www.helpnetsecurity.com/2021/07/29/total-cost-data-breach/

65% Of All DDoS Attacks Target US And UK

Distributed denial of service (DDoS) attacks are common for cyber criminals who want to disrupt online-dependent businesses. According to the data analysed by a VPN team, 65% of all distributed denial of service (DDoS) attacks are directed at the US or UK. Computers and the internet industry are the favourite among cyber criminals. The United States was a target for 35% of all DDoS attacks in June 2021. Cyber criminals launched DDoS attacks against Amazon Web Services, Google, and other prominent US-based companies in the past. The United Kingdom comes second as it fell victim to 29% of all DDoS attacks. As the UK has many huge businesses, they often are targeted by hackers for valuable data or even a ransom. China was threatened by 18% of all DDoS attacks in June 2021. Assaults from and to China happen primarily due to political reasons, to interrupt some government agency.

https://www.pcr-online.biz/2021/08/05/65-of-all-ddos-attacks-target-us-and-uk/

Threats

Ransomware

Phishing

Other Social Engineering

Bazarcaller – The Malware Gang That Talks You Into Infecting Yourself

Malware

Mobile

Vulnerabilities

Data Breaches

Nation State Actors

Cloud

The Rise Of Cloud Is Creating Security Blind Spots

Reports Published in the Last Week

Other News

As usual, contact us to help assess where your risks lie and to ensure you are doing all you can do to keep you and your business secure.

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Links to articles are for interest and awareness and linking to or reposting external content does not endorse any service or product, likewise we are not responsible for the security of external links.

Black Arrow Cyber Threat Briefing 06 August 2021