Low-Drama ‘Dark Angels’ Reap Record Ransoms

A ransomware group called Dark Angels made headlines this past week when it was revealed the crime group recently received a record $75 million data ransom payment from a Fortune 50 company. Security experts say the Dark Angels have been around since 2021, but the group doesn’t get much press because they work alone and maintain a low profile, picking one target at a time and favoring mass data theft over disrupting the victim’s operations.

Image: Shutterstock.

Security firm Zscaler ThreatLabz this month ranked Dark Angels as the top ransomware threat for 2024, noting that in early 2024 a victim paid the ransomware group $75 million — higher than any previously recorded ransom payment. ThreatLabz found Dark Angels has conducted some of the largest ransomware attacks to date, and yet little is known about the group.

Brett Stone-Gross, senior director of threat intelligence at ThreatLabz, said Dark Angels operate using an entirely different playbook than most other ransomware groups. For starters, he said, Dark Angels does not employ the typical ransomware affiliate model, which relies on hackers-for-hire to install malicious software that locks up infected systems.

“They really don’t want to be in the headlines or cause business disruptions,” Stone-Gross said. “They’re about making money and attracting as little attention as possible.”

Most ransomware groups maintain flashy victim leak sites which threaten to publish the target’s stolen data unless a ransom demand is paid. But the Dark Angels didn’t even have a victim shaming site until April 2023. And the leak site isn’t particularly well branded; it’s called Dunghill Leak.

The Dark Angels victim shaming site, Dunghill Leak.

“Nothing about them is flashy,” Stone-Gross said. “For the longest time, they didn’t even want to cause a big headline, but they probably felt compelled to create that leaks site because they wanted to show they were serious and that they were going to post victim data and make it accessible.”

Dark Angels is thought to be a Russia-based cybercrime syndicate whose distinguishing characteristic is stealing truly staggering amounts of data from major companies across multiple sectors, including healthcare, finance, government and education. For large businesses, the group has exfiltrated between 10-100 terabytes of data, which can take days or weeks to transfer, ThreatLabz found.

Like most ransom gangs, Dark Angels will publish data stolen from victims who do not pay. Some of the more notable victims listed on Dunghill Leak include the global food distribution firm Sysco, which disclosed a ransomware attack in May 2023; and the travel booking giant Sabre, which was hit by the Dark Angels in September 2023.

Stone-Gross said Dark Angels is often reluctant to deploy ransomware malware because such attacks work by locking up the target’s IT infrastructure, which typically causes the victim’s business to grind to a halt for days, weeks or even months on end. And those types of breaches tend to make headlines quickly.

“They selectively choose whether they want to deploy ransomware or not,” he said. “If they deem they can encrypt some files that won’t cause major disruptions — but will give them a ton of data — that’s what they’ll do. But really, what separates them from the rest is the volume of data they’re stealing. It’s a whole order of magnitude greater with Dark Angels. Companies losing vast amounts of data will pay these high ransoms.”

So who paid the record $75 million ransom? Bleeping Computer posited on July 30 that the victim was the pharmaceutical giant Cencora (formerly AmeriSourceBergen Corporation), which reported a data security incident to the U.S. Securities and Exchange Commission (SEC) on February 21, 2024.

The SEC requires publicly-traded companies to disclose a potentially material cybersecurity event within four days of the incident. Cencora is currently #10 on the Fortune 500 list, generating more than $262 billion in revenue last year.

Cencora did not respond to questions about whether it had made a ransom payment in connection with the February cybersecurity incident, and referred KrebsOnSecurity to expenses listed under “Other” in the restructuring section of their latest quarterly financial report (PDF). That report states that the majority of the $30 million cost in “Other” was associated with the breach.

Cencora’s quarterly statement said the incident affected a standalone legacy information technology platform in one country and the foreign business unit’s ability to operate in that country for approximately two weeks.

Cencora’s 2024 1st quarter report documents a $30 million cost associated with a data exfiltration event in mid-February 2024.

In its most recent State of Ransomware report (PDF), security firm Sophos found the average ransomware payment had increased fivefold in the past year, from $400,000 in 2023 to $2 million. Sophos says that in more than four-fifths (82%) of cases funding for the ransom came from multiple sources. Overall, 40% of total ransom funding came from the organizations themselves and 23% from insurance providers.

Further reading: ThreatLabz ransomware report (PDF).

—————
Free Secure Email – Transcom Sigma
Boost Inflight Internet
Transcom Hosting
Transcom Premium Domains

Leaked GitHub Python Token

Here’s a disaster that didn’t happen:

Cybersecurity researchers from JFrog recently discovered a GitHub Personal Access Token in a public Docker container hosted on Docker Hub, which granted elevated access to the GitHub repositories of the Python language, Python Package Index (PyPI), and the Python Software Foundation (PSF).

JFrog discussed what could have happened:

The implications of someone finding this leaked token could be extremely severe. The holder of such a token would have had administrator access to all of Python’s, PyPI’s and Python Software Foundation’s repositories, supposedly making it possible to carry out an extremely large scale supply chain attack.

Various forms of supply chain attacks were possible in this scenario. One such possible attack would be hiding malicious code in CPython, which is a repository of some of the basic libraries which stand at the core of the Python programming language and are compiled from C code. Due to the popularity of Python, inserting malicious code that would eventually end up in Python’s distributables could mean spreading your backdoor to tens of millions of machines worldwide!

—————
Free Secure Email – Transcom Sigma
Boost Inflight Internet
Transcom Hosting
Transcom Premium Domains

How Do I Protect Myself When Using Wi-Fi?

How do you protect yourself when you use public Wi-Fi on your phone? For the 40% of people who say they use public Wi-Fi that way, it’s a good question to ask.

A recent study from Forbes found that plenty of people use public Wi-Fi — with 35% saying they use it at least four times a month.[i]

People have plenty of reasons for using public Wi-Fi on their phones. First off, they might want to save their cellular data usage. Maybe they want the speed it offers over a cell connection, like when they hop on a video call. In other cases, they might have a lousy cell signal indoors and want a better connection with Wi-Fi.

All are valid reasons for using public Wi-Fi. And all are reasons for knowing how to play it safe when you do.

The risks of public Wi-Fi

In an ideal world, public Wi-Fi is quite safe. The operator has it set up with the latest protection protocols, like the WP3 standard. The operator also has current, updated network equipment. You’re using it to connect to a site that uses “https” for security. And there’s no hackers or snoops in the network mix.

Of course, you can’t count on any of that every time you use public Wi-Fi.

The safer bet on public Wi-Fi…a VPN

So, what are your options if you want or need a public Wi-Fi connection?

The readiest answer is to use a VPN. As a “virtual private network,” it runs your data connection through a secure, encrypted tunnel exclusive to you. This way, it shields you and what you do from any prying eyes on public Wi-Fi.

The important bit here is to go with a trusted VPN provider. Ironically, many VPNs out there put you at risk. Some collect user info, particularly free VPNs. This gets bought and sold, and sometimes falls victim to data breaches — putting all kinds of personal info at risk.[ii] Moreover, some so-called VPNs install malware on phones instead. Others serve up ads in return for the free service.

With that, choosing a secure and trustworthy VPN provider is a must. A VPN like ours has both your security and privacy in mind. In a VPN, look for:

  • The same encryption strength that banks use.
  • One that doesn’t log or track what you do online, so your online activity remains private. ​
  • A VPN that’s independently audited for security and privacy.
  • One that covers plenty of devices and that offers unlimited data.
  • A connection that turns on automatically when using public Wi-Fi.

Not every VPN offers these features. Selecting one that does gives you the protection you want paired with the privacy you want.

More ways you can stay safer on public Wi-Fi

Turn off automatic connections.

Be choosy about the networks you connect to. Turning off automatic connections on your phone allows you to select the trusted networks you know best.

Keep your phone updated.

Set your operating system and apps to update automatically. Updates often include security fixes that shore up recently discovered shortcomings.

Watch out for extra taps to log in.

Hackers set up sketchy public Wi-Fi as bait. With it, they might siphon off personal info as you browse, bank, and shop. Others use it to install malware, like spyware that also steals personal info. Avoid any public Wi-Fi that asks you to download extra software or apps.

Prevent third parties from collecting your info.

Some internet service providers (ISPs) offer public Wi-Fi networks in various places. However, many ISPs track, gather, and sometimes share connection info. A VPN can put a stop to plenty of that, which makes this one more good reason to use one on public Wi-Fi.

Skip public Wi-Fi altogether.

If possible, use your data connection instead. Most mobile phone providers encrypt the traffic between cell towers and your device.

[i] https://www.forbes.com/advisor/business/public-wifi-risks/

[ii] https://www.cpomagazine.com/cyber-security/free-vpn-data-leak-exposed-over-360-million-user-records/

 

The post How Do I Protect Myself When Using Wi-Fi? appeared first on McAfee Blog.

—————
Free Secure Email – Transcom Sigma
Boost Inflight Internet
Transcom Hosting
Transcom Premium Domains