The cybercriminals in control of Kimwolf — a disruptive botnet that has infected more than 2 million devices — recently shared a screenshot indicating they’d compromised the control panel for Badbox 2.0, a vast China-based botnet powered by malicious software that comes pre-installed on many Android TV streaming boxes. Both the FBI and Google say they are hunting for the people behind Badbox 2.0, and thanks to bragging by the Kimwolf botmasters we may now have a much clearer idea about that.

Our first story of 2026, The Kimwolf Botnet is Stalking Your Local Network, detailed the unique and highly invasive methods Kimwolf uses to spread. The story warned that the vast majority of Kimwolf infected systems were unofficial Android TV boxes that are typically marketed as a way to watch unlimited (pirated) movie and TV streaming services for a one-time fee.

Our January 8 story, Who Benefitted from the Aisuru and Kimwolf Botnets?, cited multiple sources saying the current administrators of Kimwolf went by the nicknames “Dort” and “Snow.” Earlier this month, a close former associate of Dort and Snow shared what they said was a screenshot the Kimwolf botmasters had taken while logged in to the Badbox 2.0 botnet control panel.

That screenshot, a portion of which is shown below, shows seven authorized users of the control panel, including one that doesn’t quite match the others: According to my source, the account “ABCD” (the one that is logged in and listed in the top right of the screenshot) belongs to Dort, who somehow figured out how to add their email address as a valid user of the Badbox 2.0 botnet.

Badbox has a storied history that well predates Kimwolf’s rise in October 2025. In July 2025, Google filed a “John Doe” lawsuit (PDF) against 25 unidentified defendants accused of operating Badbox 2.0, which Google described as a botnet of over ten million unsanctioned Android streaming devices engaged in advertising fraud. Google said Badbox 2.0, in addition to compromising multiple types of devices prior to purchase, also can infect devices by requiring the download of malicious apps from unofficial marketplaces.

Google’s lawsuit came on the heels of a June 2025 advisory from the Federal Bureau of Investigation (FBI), which warned that cyber criminals were gaining unauthorized access to home networks by either configuring the products with malware prior to the user’s purchase, or infecting the device as it downloads required applications that contain backdoors — usually during the set-up process.

The FBI said Badbox 2.0 was discovered after the original Badbox campaign was disrupted in 2024. The original Badbox was identified in 2023, and primarily consisted of Android operating system devices (TV boxes) that were compromised with backdoor malware prior to purchase.

KrebsOnSecurity was initially skeptical of the claim that the Kimwolf botmasters had hacked the Badbox 2.0 botnet. That is, until we began digging into the history of the qq.com email addresses in the screenshot above.

CATHEAD

An online search for the address 34557257@qq.com (pictured in the screenshot above as the user “Chen“) shows it is listed as a point of contact for a number of China-based technology companies, including:

–Beijing Hong Dake Wang Science & Technology Co Ltd.
–Beijing Hengchuang Vision Mobile Media Technology Co. Ltd.
–Moxin Beijing Science and Technology Co. Ltd.

The website for Beijing Hong Dake Wang Science is asmeisvip[.]net, a domain that was flagged in a March 2025 report by HUMAN Security as one of several dozen sites tied to the distribution and management of the Badbox 2.0 botnet. Ditto for moyix[.]com, a domain associated with Beijing Hengchuang Vision Mobile.

A search at the breach tracking service Constella Intelligence finds 34557257@qq.com at one point used the password “cdh76111.” Pivoting on that password in Constella shows it is known to have been used by just two other email accounts: daihaic@gmail.com and cathead@gmail.com.

Constella found cathead@gmail.com registered an account at jd.com (China’s largest online retailer) in 2021 under the name “陈代海,” which translates to “Chen Daihai.” According to DomainTools.com, the name Chen Daihai is present in the original registration records (2008) for moyix[.]com, along with the email address cathead@astrolink[.]cn.

Incidentally, astrolink[.]cn also is among the Badbox 2.0 domains identified in HUMAN Security’s 2025 report. DomainTools finds cathead@astrolink[.]cn was used to register more than a dozen domains, including vmud[.]net, yet another Badbox 2.0 domain tagged by HUMAN Security.

XAVIER

A cached copy of astrolink[.]cn preserved at archive.org shows the website belongs to a mobile app development company whose full name is Beijing Astrolink Wireless Digital Technology Co. Ltd. The archived website reveals a “Contact Us” page that lists a Chen Daihai as part of the company’s technology department. The other person featured on that contact page is Zhu Zhiyu, and their email address is listed as xavier@astrolink[.]cn.

Astute readers will notice that the user Mr.Zhu in the Badbox 2.0 panel used the email address xavierzhu@qq.com. Searching this address in Constella reveals a jd.com account registered in the name of Zhu Zhiyu. A rather unique password used by this account matches the password used by the address xavierzhu@gmail.com, which DomainTools finds was the original registrant of astrolink[.]cn.

ADMIN

The very first account listed in the Badbox 2.0 panel — “admin,” registered in November 2020 — used the email address 189308024@qq.com. DomainTools shows this email is found in the 2022 registration records for the domain guilincloud[.]cn, which includes the registrant name “Huang Guilin.”

Constella finds 189308024@qq.com is associated with the China phone number 18681627767. The open-source intelligence platform osint.industries reveals this phone number is connected to a Microsoft profile created in 2014 under the name Guilin Huang (桂林 黄). The cyber intelligence platform Spycloud says that phone number was used in 2017 to create an account at the Chinese social media platform Weibo under the username “h_guilin.”

The remaining three users and corresponding qq.com email addresses were all connected to individuals in China. However, none of them (nor Mr. Huang) had any apparent connection to the entities created and operated by Chen Daihai and Zhu Zhiyu — or to any corporate entities for that matter. Also, none of these individuals responded to requests for comment.

The mind map below includes search pivots on the email addresses, company names and phone numbers that suggest a connection between Chen Daihai, Zhu Zhiyu, and Badbox 2.0.

UNAUTHORIZED ACCESS

The idea that the Kimwolf botmasters could have direct access to the Badbox 2.0 botnet is a big deal, but explaining exactly why that is requires some background on how Kimwolf spreads to new devices. The botmasters figured out they could trick residential proxy services into relaying malicious commands to vulnerable devices behind the firewall on the unsuspecting user’s local network.

The vulnerable systems sought out by Kimwolf are primarily Internet of Things (IoT) devices like unsanctioned Android TV boxes and digital photo frames that have no discernible security or authentication built-in. Put simply, if you can communicate with these devices, you can compromise them with a single command.

Our January 2 story featured research from the proxy-tracking firm Synthient, which alerted 11 different residential proxy providers that their proxy endpoints were vulnerable to being abused for this kind of local network probing and exploitation.

Most of those vulnerable proxy providers have since taken steps to prevent customers from going upstream into the local networks of residential proxy endpoints, and it appeared that Kimwolf would no longer be able to quickly spread to millions of devices simply by exploiting some residential proxy provider.

However, the source of that Badbox 2.0 screenshot said the Kimwolf botmasters had an ace up their sleeve the whole time: Secret access to the Badbox 2.0 botnet control panel.

“Dort has gotten unauthorized access,” the source said. “So, what happened is normal proxy providers patched this. But Badbox doesn’t sell proxies by itself, so it’s not patched. And as long as Dort has access to Badbox, they would be able to load” the Kimwolf malware directly onto TV boxes associated with Badbox 2.0.

The source said it isn’t clear how Dort gained access to the Badbox botnet panel. But it’s unlikely that Dort’s existing account will persist for much longer: All of our notifications to the qq.com email addresses listed in the control panel screenshot received a copy of that image, as well as questions about the apparently rogue ABCD account.

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Loyal readers and other privacy-conscious people will be familiar with the expression, “If it’s too good to be true, it’s probably false.”

Getting paid handsomely to scroll social media definitely falls into that category. It sounds like an easy side hustle, which usually means there’s a catch.

In January 2026, an app called Freecash shot up to the number two spot on Apple’s free iOS chart in the US, helped along by TikTok ads that look a lot like job offers from TikTok itself. The ads promised up to $35 an hour to watch your “For You” page. According to reporting, the ads didn’t promote Freecash by name. Instead, they showed a young woman expressing excitement about seemingly being “hired by TikTok” to watch videos for money.

The landing pages featured TikTok and Freecash logos and invited users to “get paid to scroll” and “cash out instantly,” implying a simple exchange of time for money.

Those claims were misleading enough that TikTok said the ads violated its rules on financial misrepresentation and removed some of them.

Once you install the app, the promised TikTok paycheck vanishes. Instead, Freecash routes you to a rotating roster of mobile games—titles like Monopoly Go and Disney Solitaire—and offers cash rewards for completing time‑limited in‑game challenges. Payouts range from a single cent for a few minutes of daily play up to triple‑digit amounts if you reach high levels within a fixed period.

The whole setup is designed not to reward scrolling, as it claims, but to funnel you into games where you are likely to spend money or watch paid advertisements.

Freecash’s parent company, Berlin‑based Almedia, openly describes the platform as a way to match mobile game developers with users who are likely to install and spend. The company’s CEO has spoken publicly about using past spending data to steer users toward the genres where they’re most “valuable” to advertisers. 

Our concern, beyond the bait-and-switch, is the privacy issue. Freecash’s privacy policy allows the automatic collection of highly sensitive information, including data about race, religion, sex life, sexual orientation, health, and biometrics. Each additional mobile game you install to chase rewards adds its own privacy policy, tracking, and telemetry. Together, they greatly increase how much behavioral data these companies can harvest about a user.

Experts warn that data brokers already trade lists of people likely to be more susceptible to scams or compulsive online behavior—profiles that apps like this can help refine.

We’ve previously reported on data brokers that used games and apps to build massive databases, only to later suffer breaches exposing all that data.

When asked about the ads, Freecash said the most misleading TikTok promotions were created by third-party affiliates, not by the company itself. Which is quite possible because Freecash does offer an affiliate payout program to people who promote the app online. But they made promises to review and tighten partner monitoring.

For experienced users, the pattern should feel familiar: eye‑catching promises of easy money, a bait‑and‑switch into something that takes more time and effort than advertised, and a business model that suddenly makes sense when you realize your attention and data are the real products.

How to stay private

Free cash? Apparently, there is no such thing.

If you’re curious how intrusive schemes like this can be, consider using a separate email address created specifically for testing. Avoid sharing real personal details. Many users report that once they sign up, marketing emails quickly pile up.

Some of these schemes also appeal to people who are younger or under financial pressure, offering tiny payouts while generating far more value for advertisers and app developers.

So, what can you do?

• Gather information about the company you’re about to give your data. Talk to friends and relatives about your plans. Shared common sense often helps make the right decisions.
• Create a separate account if you want to test a service. Use a dedicated email address and avoid sharing real personal details.
• Limit information you provide online to what makes sense for the purpose. Does a game publisher need your Social Security Number? I don’t think so.
• Be cautious about app installs that are framed as required to make the money initially promised, and review permissions carefully.
• Use an up-to-date real-time anti-malware solution on all your devices.

Work from the premise that free money does not exist. Try to work out the business model of those offering it, and then decide.

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This week on the Lock and Code podcast…

When you hear the words “data privacy,” what do you first imagine?

Maybe you picture going into your social media apps and setting your profile and posts to private. Maybe you think about who you’ve shared your location with and deciding to revoke some of that access. Maybe you want to remove a few apps entirely from your smartphone, maybe you want to try a new web browser, maybe you even want to skirt the type of street-level surveillance provided by Automated License Plate Readers, which can record your car model, license plate number, and location on your morning drive to work.

Importantly, all of these are “data privacy,” but trying to do all of these things at once can feel impossible.

That’s why, this year, for Data Privacy Day, Malwarebytes Senior Privacy Advocate (and Lock and Code host) David Ruiz is sharing the one thing he’s doing different to improve his privacy. And it’s this: He’s given up Google Search entirely.

When Ruiz requested the data that Google had collected about him last year, he saw that the company had recorded an eye-popping 8,000 searches in just the span of 18 months. And those 8,000 searches didn’t just reveal what he was thinking about on any given day—including his shopping interests, his home improvement projects, and his late-night medical concerns—they also revealed when he clicked on an ad based on the words he searched. This type of data, which connects a person’s searches to the likelihood of engaging with an online ad, is vital to Google’s revenue, and it’s the type of thing that Ruiz is seeking to finally cut off.

So, for 2026, he has switched to a new search engine, Brave Search.

Today, on the Lock and Code podcast, Ruiz explains why he made the switch, what he values about Brave Search, and why he also refused to switch to any of the major AI platforms in replacing Google.

Tune in today to listen to the full episode.

Show notes and credits:

Intro Music: “Spellbound” by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/
Outro Music: “Good God” by Wowa (unminus.com)

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