Zoom app malware.Zoom attracting malware attacks: How to protect yourself
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Fake Zoom App Dropped by New APT ‘Luminous Moth’ | Threatpost – Dubious setup with a flavor of privilege escalation
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– Zoom app malware
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Software Software. Offbeat Offbeat. Vendor Voice. Vendor Voice Vendor Voice. Resources Resources. Whitepapers Webinars Newsletters. Get our Tech Resources. Share Copy. Similar topics Google Security Vulnerability Zoom. Broader topics Alphabet Search Engine. So, too, have concerns about its security. Its app for iPhone has been the most downloaded app in the country for weeks, according to the mobile app market research firm Sensor Tower.
Even politicians and other high-profile figures, including the British prime minister, Boris Johnson , and the former US federal reserve chair Alan Greenspan , use it for conferencing as they work from home. A spokesman from Zoom told the Guardian on Wednesday it was planning to send James the requested information and comply with the request.
In a follow-up to their initial report opens in new tab. Zoom meetings have side chats in which participants can sent text-based messages and post web links. That left Zoom chats vulnerable to attack. If a malicious Zoom bomber slipped a UNC path to a remote server that he controlled into a Zoom meeting chat, an unwitting participant could click on it.
The participant’s Windows computer would then try to reach out to the hacker’s remote server specified in the path and automatically try to log into it using the user’s Windows username and password. The hacker could capture the password “hash” and decrypt it, giving him access to the Zoom user’s Windows account. Mohamed A. Baset opens in new tab of security firm Seekurity said on Twitter that the same filepath flaw also would let a hacker insert a UNC path to a remote executable file into a Zoom meeting chatroom.
If a Zoom user running Windows clicked on it, a video posted by Baset showed, the user’s computer would try to load and run the software. The victim would be prompted to authorize the software to run, which will stop some hacking attempts but not all. After Vice News exposed the practice, Zoom said it hadn’t been aware of the profile-sharing and updated the iOS apps to fix this. We learned last summer that Zoom used hacker-like methods to bypass normal macOS security precautions.
We thought that problem had been fixed then, along with the security flaw it created. But a series of tweets March 30 from security researcher Felix Seele, who noticed that Zoom installed itself on his Mac without the usual user authorizations, revealed that there was still an issue.
The same tricks that are being used by macOS malware. Yuan opens in new tab tweeted a friendly response. That was a swift and comprehensive reaction. Zoom just released an update for the macOS installer which completely removes the questionable “preinstall”-technique and the faked password prompt.
I must say that I am impressed. Other people could use Zoom’s dodgy Mac installation methods, renowned Mac hacker Patrick Wardle opens in new tab said in a blog post March Wardle demonstrated how a local attacker — such as a malicious human or already-installed malware — could use Zoom’s formerly magical powers of unauthorized installation to “escalate privileges” and gain total control over the machine without knowing the administrator password.
Wardle also showed that a malicious script installed into the Zoom Mac client could give any piece of malware Zoom’s webcam and microphone privileges, which do not prompt the user for authorization and could turn any Mac with Zoom installed into a potential spying device. Yuan opens in new tab acknowledged Zoom’s growing pains and pledged that regular development of the Zoom platform would be put on hold while the company worked to fix security and privacy issues.
Dedicated journalists and security researchers have also helped to identify pre-existing ones. To deal with these issues, Yuan wrote, Zoom would be “enacting a feature freeze, effectively immediately, and shifting all our engineering resources to focus on our biggest trust, safety, and privacy issues.
Among other things, Zoom would also be “conducting a comprehensive review with third-party experts and representative users to understand and ensure the security of all of our new consumer use cases.
Zoom now requires passwords by default for most Zoom meetings, although meetings hosts can turn that feature off. Passwords are the easiest way to stop Zoom bombing. And on April 8, former Facebook and Yahoo chief security officer Alex Stamos opens in new tab said he would be working with Zoom to improve its security and privacy.
Stamos is now an adjunct professor at Stanford and is highly regarded within the information-security community. Zoom claims its meetings use “end-to-end encryption” if every participant calls in from a computer or a Zoom mobile app instead of over the phone.
But under pressure from The Intercept opens in new tab , a Zoom representative admitted that Zoom’s definitions of “end-to-end” and “endpoint” are not the same as everyone else’s. Every other company considers an endpoint to be a user device — a desktop, laptop, smartphone or tablet — but not a server.
And every other company takes “end-to-end encryption” to mean that servers that relay messages from one endpoint to another can’t decrypt the messages. When you send an Apple Message from your iPhone to another iPhone user, Apple’s servers help the message get from one place to another, but they can’t read the content.
Not so with Zoom. It can see whatever is going on in its meetings, and sometimes it may have to in order to make sure everything works properly. Just don’t believe the implication that it can’t. UPDATE: In a blog post April 1, Zoom Chief Product Officer Oded Gal opens in new tab wrote that “we want to start by apologizing for the confusion we have caused by incorrectly suggesting that Zoom meetings were capable of using end-to-end encryption.
Gal assured users that all data sent and received by Zoom client applications but not regular phone lines, business conferencing systems or, presumably, browser interfaces is indeed encrypted and that Zoom servers or staffers “do not decrypt it at any point before it reaches the receiving clients.
However, Gal added, “Zoom currently maintains the key management system for these systems in the cloud” but has “implemented robust and validated internal controls to prevent unauthorized access to any content that users share during meetings.
The implication is that Zoom doesn’t decrypt user transmissions by choice. But because it holds the encryption keys, Zoom could if it had to, such as if it were presented with a warrant or a U. National Security Letter essentially a secret warrant. For those worried about government snooping, Gal wrote that “Zoom has never built a mechanism to decrypt live meetings for lawful intercept purposes, nor do we have means to insert our employees or others into meetings without being reflected in the participant list.
He added that companies and other enterprises would soon be able to handle their own encryption process. We hope Zoom stops using the term “end-to-end encryption” incorrectly, but just keep in mind that you won’t be getting the real thing with Zoom until it fully implements the technology it’s buying with Keybase. Privacy researcher Patrick Jackson noticed that Zoom meeting recordings saved to the host’s computer generally get a certain type of file name. So he searched unprotected cloud servers to see if anyone had uploaded Zoom recordings and found more than 15, unprotected examples, according to The Washington Post opens in new tab.
Jackson also found some recorded Zoom meetings on YouTube and Vimeo. This isn’t really Zoom’s fault. It’s up to the host to decide whether to record a meeting, and Zoom gives paying customers the option to store recordings on Zoom’s own servers.
It’s also up to the host to decide to change the recording’s file name. If you host a Zoom meeting and decide to record it, then make sure you change the default file name after you’re done. Paul Wagenseil is a senior editor at Tom’s Guide focused on security and privacy. He has also been a dishwasher, fry cook, long-haul driver, code monkey and video editor. He’s been rooting around in the information-security space for more than 15 years at FoxNews.
Tom’s Guide Tom’s Guide. Paul Wagenseil opens in new tab. Topics Privacy. See all comments 8. Helpful article, if a bit generous in assuming Zoom’s good intentions and dedication to fixing its glaring flaws. How about the hidden webserver that Zoom installed with its application that allowed remote access to the camera and did not uninstall with the rest of the app?
Their explanation was that it was a feature, not a bug Truly disgraceful. Also, I’m stuck on some language in the article: What does it mean that Hacker House is an “Anglo-American” cybersecurity training firm?
Nobody at my office has been able to figure that one out. Agree with you. Also, as “globalist embracing” as all of us tend and somewhat need to be in the global technology industry, we have to be cautious when it comes to security, especially at a time that a virus – COVID more properly originally named the Wuhan Virus for it’s point of origin became a pandemic and is economically damaging the global economy including our industries.
Zoom disclosed in their original IPO prospectus that most of their product development personnel are based in China. We all know that our Intellectual Property is constantly under attack and being stolen by China. Here we have a company delivering the most popular video conferencing service to U. S corporations and personal users and we are expected to trust that of their developers in China are not part of the Chinese state goverment?
Sorry folks. Be wise, be safe. Choose another provider. Yuan has a lot more than some “mea culpa” interviews to do to clean up this mess!
And perhaps a higher law enforcement authority DOJ? My organization has discussed moving to Microsoft Teams. Would be interested in a comparison between Teams and Skype and a comparison between zoom and Teams. On “Zoombombing” or as you refer “War Driving” conference meetings. This is possible on ANY conference facility that doesn’t have a password set. ANY conference that you define and setup without a password.
There is an admin console option to enforce this setup in zoom. Zoom chats are encrypted as long as you configure encryption. This is not true of other chat-enabled conference tools that I know of, such as WebEx’s Teams or MS Teams, with which you can get chat data relatively easily in unencrypted form.
Sharing of personal data. The policy was updated to clarify. The last thing you want is a software to be infected with malware that has the potential to harm the user in many ways. Issues like this keep popping up regularly, and it is imperative that companies have a robust security mechanism in place to thwart any danger.
Updates are a big part of that process, helping the software to fix the bug and give you better security against other zero-day matters that can be troublesome in the future.