Cyber Weekly Flash Briefing 31 July 2020: 386M user records stolen, Twitter spear-phishing, Garmin may have paid ransom, 27% of consumers hit with Covid19 phishing scams, Netflix phishing scam
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386 million user records stolen in data breaches — and they're being given away for free
A notorious hacker or group of hackers is giving away copies of databases said to contain 386 million user records, after posting links to the databases on a marketplace used by cyber criminals.
The threat actor, who goes by the name ShinyHunters, claims to have data stolen from 18 different websites in the past seven months. According to reports, ShinyHungers last week began uploading the databases to a forum where anyone can download them free of charge.
ShinyHunters is believed to have played a role in high-profile data breaches at HomeChef, Promo.com, Mathway, Chatbooks, Dave.com, Wattpad and even Microsoft's GitHub account. Many of these records were previously offered for sale online.
Why this matters:
Any details stolen from one site or service will be used against other sites and services, this is why it is critical that passwords are not reused across different sites and that all passwords are unique. Using multi factor authentication is also very effective at safeguarding against these types of attacks.
Read more here: https://www.tomsguide.com/news/shinyhunters-breach-giveaway
Twitter says spear-phishing attack on employees led to breach
Twitter said a large hack two weeks ago targeted a small number of employees through a phone “spear-phishing” attack.
The social media platform said the hackers targeted about 130 accounts, tweeted from 45, accessed the inboxes of 36, and were able to download Twitter data from seven.
Attackers also targeted specific employees who had access to account support tools, Twitter said. The company added it has since restricted access to its internal tools and systems.
Twitter suffered a major security breach on 15 July that saw hackers take control of the accounts of major public figures and corporations, including Joe Biden, Barack Obama, Elon Musk, Bill Gates, Jeff Bezos and Apple.
The hack unfolded over the course of several hours, and in the course of halting it, Twitter stopped all verified accounts from tweeting – an unprecedented measure.
Publicly available blockchain records show the apparent scammers received more than $100,000 worth of cryptocurrency.
Why this matters?
It is nearly always a lot easier for attackers to attack your users than it is to attack your systems. IT controls alone cannot protect against social engineering attacks so making sure your staff are trained so they don’t fall for social engineering attacks is a critical part of your defence.
Read more here: https://www.theguardian.com/technology/2020/jul/30/twitter-breach-hackers-spear-phishing-attack
Cyber-Criminals Continue to Exploit #COVID19 During Q2
Cyber-criminals’ exploitation of the COVID-19 pandemic to target individuals and businesses has continued unabated during the second quarter of 2020, according to one Cyber Security firm’s Q2 2020 Threat Report published today. The findings highlight how the crisis is defining the cybersecurity landscape in Q2 in a similar way as it did in Q1 after the pandemic first struck.
The firm observed a continuous focus on phishing using COVID-19 lures in this period. This included criminals taking advantage of the rise in online shopping that has occurred during the pandemic, with a 10-fold increase in phishing emails impersonating one of the world’s leading package delivery services found in comparison to Q1.
The shift to remote working as a result of the pandemic has also led to increased targeting of Remote Desktop Protocol’s in recent months.
Ransomware tactics were found to be “rapidly developing” in this period, with operators moving away from doxing and random data leaking towards auctioning the stolen data on dedicated underground sites.
Why does this matter?
The Coronavirus crisis gave criminals an efficient lure to bait phishing emails with and for as long as it is working they will continue to exploit this crisis. It’s like we always say “cyber criminals will never let a good crisis or tragedy go to waste”
Read more here: https://www.infosecurity-magazine.com/news/cyber-criminals-exploit-covid/
FBI Releases Flash Alert on Netwalker Ransomware
The US Federal Bureau of Investigations (FBI) released a flash alert in which it warned organisations about the dangers of Netwalker ransomware.
The FBI said that it had received notifications of attacks involving Netwalker against U.S. and foreign government organisations along with entities operating in the healthcare and education sectors.
In its alert, the FBI noted that those responsible for Netwalker had used COVID-19 phishing emails and unpatched vulnerabilities affecting VPN apps to gain entry into an organisation. The malicious actors had then used their crypto-malware to harvest administrator credentials and steal data from their victims. Ultimately, the attackers uploaded that stolen information to a file-sharing service.
Once they had come into possession of a victim’s data, the nefarious individuals activated the ransomware’s encryption routine. This step led the threat to encrypt all connected Windows-based devices and information before dropping a ransom note on the infected machine.
Why does this matter?
Ransomware remains one of the biggest risks for all firms, organisations and individuals, and the majority of the time the ransomware infection will stem from a phishing email that a user within an organisation clicked on. As with all social engineering attacks IT controls alone are of limited effectiveness and defending against these attacks comes down to educating your users and instilling in them the importance of the role they play in defending an organisation.
Read more here: https://www.tripwire.com/state-of-security/security-data-protection/fbi-releases-flash-alert-on-netwalker-ransomware/
Garmin may have paid hackers ransom, reports suggest
Fitness wearable and Navtech supplier Garmin may have given in to the demands of cyber criminals who encrypted its systems with ransomware, according to news reports that suggest the firm has obtained a decryption key to recover its files, strongly suggesting it has either paid up, or brokered some kind of deal.
In a statement issued four days after its services first went offline, Garmin finally confirmed it had been the victim of a cyber attack, having previously limited its response to saying it was experiencing an outage. It has not yet confirmed it was the victim of a ransomware incident, although this is now all but certain.
A spokesperson said: “Garmin today announced it was the victim of a cyber attack that encrypted some of our systems on July 23, 2020. As a result, many of our online services were interrupted including website functions, customer support, customer-facing applications, and company communications. We immediately began to assess the nature of the attack and started remediation,” said the firm.
“We have no indication that any customer data, including payment information from Garmin Pay, was accessed, lost or stolen. Additionally, the functionality of Garmin products was not affected, other than the ability to access online services.
Why does this matter?
Ransomware can affect firms of any size, from the smallest to the largest, no firm or organisation is immune and even firms that are spending millions or tens of millions on advanced protections and controls can still fall victim. These types of attacks go after the people working for an organisation, not the organisations technical infrastructure and technical controls are of limited use in defending against these types of attacks. An organisation needs to ensure their users are efficient at spotting phishing emails, it only takes one user clicking on one malicious email to take down a multinational corporation.
Read more here: https://www.computerweekly.com/news/252486775/Garmin-may-have-paid-hackers-ransom-reports-suggest
Cyber-security agencies from the UK and the US say 62,000 QNAP NAS devices have been infected with the QSnatch malware
The UK NCSC and US CISA published a joint security alert this week about QSnatch, a strain of malware that has been infecting network-attached storage (NAS) devices from Taiwanese device maker QNAP.
In alerts by the United States Cybersecurity and Infrastructure Security Agency (CISA) and the United Kingdom's National Cyber Security Centre (NCSC), the two agencies say that attacks with the QSnatch malware have been traced back to 2014, but attacks intensified over the last year when the number of reported infections grew from 7,000 devices in October 2019 to more than 62,000 in mid-June 2020.
Of these, CISA and the NSCS say that approximately 7,600 of the infected devices are located in the US, and around 3,900 in the UK.
Why this matters?
Vulnerable devices can be used to steal credentials (usernames and passwords) and exfiltrate information from devices on the network. It is important to keep devices up to date with the latest security patches to close any vulnerabilities before they can be exploited.
Read more here: https://www.zdnet.com/article/cisa-says-62000-qnap-nas-devices-have-been-infected-with-the-qsnatch-malware/
Hackers actively exploit high-severity networking vulnerabilities
Hackers are actively exploiting two unrelated high-severity vulnerabilities that allow unauthenticated access or even a complete takeover of networks run by FTSE100/Fortune 500 companies and government organisations.
The most serious exploits are targeting a critical vulnerability in F5’s Big-IP advanced delivery controller, a device that’s typically placed between a perimeter firewall and a Web application to handle load balancing and other tasks. The vulnerability, which F5 patched three weeks ago, allows unauthenticated attackers to remotely run commands or code of their choice. Attackers can then use their control of the device to hijack the internal network it’s connected to.
Why this matters?
Vulnerable devices such as this can be used to gain access to internal networks. It is important to keep devices up to date with the latest security patches to close any vulnerabilities before they can be exploited. When a vendor releases updates they should be installed as soon as possible, ideally having been tested before updates are applied in your live environment.
Read more here: https://arstechnica.com/information-technology/2020/07/hackers-actively-exploit-high-severity-networking-vulnerabilities/
27% of consumers hit with pandemic-themed phishing scams
Phishing is the top digital fraud scheme worldwide related to the COVID-19 pandemic, according to new research.
Among consumers reporting being targeted with digital COVID-19 schemes globally, 27% said they were hit with pandemic-themed phishing scams.
Identity fraud is a primary way fraudsters leverage stolen consumer data from phishing and other social engineering schemes. It can have long-term impacts for consumers such as the compromise of multiple online accounts and bringing down credit scores, which we anticipate will increase during pandemic reconstruction.
To better understand the impacts of COVID-19 on consumers, 7,384 adults in Canada, Colombia, Hong Kong, South Africa, the U.K., and the U.S. have been surveyed between June 30 and July 6, 2020.
It asked the consumers if they had been targeted by digital COVID-19 fraud and if so, which digital fraud scheme(s) related to COVID-19 were they targeted with. Globally, 32% said they had been targeted by digital fraud related to COVID-19 with the below being the top types of COVID-19 fraud they faced:
Top global online COVID-19 scams targeting consumers:
Why this matters?
Whatever works for criminals they will continue doing. Until consumers, as well as businesses, get better at detecting these scams and get better at spotting phishing emails criminals will carry on using the latest crisis or tragedy to get users to click on malicious emails and open their networks to attackers.
Read more here: https://www.helpnetsecurity.com/2020/07/24/pandemic-themed-phishing-scams/
New Netflix phishing scam uncovered - here’s how to stay safe
Security analysts have uncovered a dangerous and highly convincing new Netflix phishing scam, capable of evading traditional email security software.
The phishing email masquerades as a billing error alert, pressing the victim to update their payment details within 24 hours or have their Netflix subscription voided.
The link provided in the email redirects to a functioning CAPTCHA form, used in legitimate scenarios to distinguish between humans and AI. Although this step adds a layer of friction to the process, it serves to enhance the sense of legitimacy the attacker is attempting to cultivate.
After handing over account credentials, billing address and payment card information, the victim is then redirected to the genuine Netflix home page, unaware their data has been compromised.
Why does this matter?
Phishing campaigns like this cast a wide net and only need a small number of victims to fall for it to turn a profit, and that means these types of scams are not going to go away any time soon. If no one fell for them they would stop. Always question any email that urges you to take action quickly under the guise of some threat.
Read more here: https://www.techradar.com/news/dangerous-new-netflix-phishing-scam-hits-the-scene-heres-what-you-need-to-know