ShadyPanda: How China’s Browser Extensions Can Browse Your Data

​Security consulting firm Koi recently published an exposé about a new online privacy threat, one with the unforgettable name of “ShadyPanda.” The scheme allowed browser extensions to infect 4.3 million Chrome and Edge users. In this case, “infect” means sit there quietly, take control whenever it wants, then pretty much do whatever it pleases, including:
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• Stealing anything stored in browsers (search history, passwords, credit card numbers)

 

• Intercepting what’s being typed and captured in screenshots

 

• Hijacking web traffic, redirecting you to fake logins

 

• Injecting malicious software/scripts (to add even more capabilities to spy on you and rip you off)

 

• Impersonating users (stolen cookies and passwords for theft)

ShadyPanda’s extensions often worked legitimately for years before being activated and turned into full-blown spyware – making it an especially effective tool for keeping tabs on businesses.

Some of the extensions were simple wallpaper galleries or productivity tools, and many had been marked as “trusted” or “verified” by the marketplaces that hosted them.

One of the key vulnerabilities this research exposed was the whole “trust and verify” approach. Once approved by various marketplaces, extensions were never re-verified. And because most users opt for “auto-updating,” the extensions could continue to build up a large user base and then be activated as spy tools when needed. Koi reports:

“Chrome and Edge's trusted update pipeline silently delivered malware to users. No phishing. No social engineering. Just trusted extensions with quiet version bumps that turned productivity tools into surveillance platforms.”

And where is all that collected data going? To surveillance-obsessed China, of course.

Worried that you might be infected? Check out The Hacker News’ partial list of the culprits. Infosecurity Magazine recommends you also check your browser extensions and remove anything you don’t recognize or no longer use.

And turn off auto-updating while you’re at it.
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It is a dispiriting truth of modern life that we are – and likely always will be – in a footrace against hackers and thieves, whose tools will grow even more dangerous as AI evolves. But we don’t have to be helpless. At least we can take satisfaction in knowing that by embracing best practices, we can at least be a step ahead and leave the ShadyPandas of the world empty-handed.

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