In one campaign, the phishing email … As a result, many people won't be familiar with what types of notifications the service sends out. Attackers will often hide malicious links in redirects or host them on separate websites that can be reached by safe links. Even if someone is familiar with Microsoft Teams, the phishing attack uses cloned imagery from Microsoft that is convincing. You can unsubscribe at any time and we'll never share your details without your permission. © 2020 CBS Interactive. In another campaign, the user is redirected to a page hosted on YouTube and is then redirected twice more until reaching a Microsoft page phishing for login credentials. For example, one attack comes from an email attache to "sharepointonline-irs.com." In a blog post published on Friday, Abnormal Security found a series of convincing emails designed to spoof notification messages from Microsoft Teams. Cybercriminals have been taking advantage of virtually every aspect of the coronavirus to try to increase business. On May 1, 2020, Abnormal Security reported that between 15,000 and 50,000 inboxes received emails as part of the phishing attack. The second campaign began on April 29, lasted a few hours, and has not been recorded since then. Regardless, it is best for users to beware of communication from the domain listed above and ensure to always be careful of the URL when any email redirects users to a login screen. We've rounded up the best right here for a variety of purposes. Please enter your reason for reporting this comment. A new phishing campaign discovered by security provider Abnormal Security is exploiting the greater use of Teams as a way to hijack Microsoft account credentials. But, if someone clicks on this image, a malicious page impersonating the Microsoft Office login site appears for the purpose of capturing the user's credentials. The phishing attack is particularly dangerous because millions of people are using Microsoft Teams for the first time due to the current global health crisis. Abnormal Security summarizes how convincing images and URL redirects create an effective attack: The email and landing page the attackers created were convincing. All trademarks mentioned are the property of their respective owners. with 0 comments, 12 hours ago Attackers are exploiting the surge in the use of Microsoft Teams in an attempt to trap unsuspecting users, says Abnormal Security. Abnormal Security first discovered and reported on the attack. No spam, we promise. With Microsoft Teams … How to hack Microsoft Teams The disclosed flaw is a worm-like vulnerability that allows criminals to take over an organization’s entire roster of Teams accounts just by sending victims a malicious link to an innocent-looking GIF image. Save an insane 73% on a new IPVanish subscription for a limited time. To help organizations defend themselves and their employees from these Microsoft Teams phishing scams, Laio offers two pieces of advice. The images were copied from actual Microsoft notifications and emails, according to Abnormal Security. The security firm says that the attackers use multiple URL redirects to “conceal” the real URL that hosts the attacks. Users that fall prey to the technique end up providing their Teams/Office 365 credentials, providing the attackers access to all other information through the single sign-on. The phishing emails were sent to Abnormal customers in such industries as energy, retail, and hospitality, Laio said. The firm states, "Additionally, since Microsoft Teams is linked to Microsoft Office 365, the attacker may have access to other information available with the user's Microsoft credentials via single-sign on.". We may earn a commission for purchases using our links. Among other consequences, the need to quarantine and work from home has triggered a surge in demand for virtual meeting and video chatting apps, including the business-oriented Microsoft Teams. The attack imitates file share and audio notification emails from Microsoft Teams. 10 hours ago The attack uses several URL redirects that take people to a convincing fake login page. Microsoft Teams has seen a surge in usage owing to the increased need for collaboration services as more and more employees are working from home in the wake of the COVID-19 Coronavirus pandemic. with 36 comments. The following codes can be used in comments. I would like to receive mail from Future partners. TechRepublic Premium: The best IT policies, templates, and tools, for today and tomorrow. Abnormal Security highlights that because Microsoft Teams is linked to Office 365, a successful phishing attack on a person's Microsoft Teams account could also grant access to people's Office 365 account. The landing pages that host the phishing pages were created to look just like the real Microsoft pages. Some of the other URLs used look less convincing, but you should always keep an eye out when clicking on links as some might have URLs that seem reasonable. The first type of attack involves a notification that contains a link to a document that is used “by an established email marketing provider to host static material used for campaigns redirects users”. © Since 2000 Neowin LLC. CXO Insider: How solid cloud infrastructure and strong digital roadmap helped SUEZ adapt to COVID-19, Phishing: Leading targets, breaking myths, and educating users, Comment and share: Phishing attacks spoof Microsoft Teams to steal user credentials. The full list of Xbox Series X and Xbox Series S titles committed to Smart Delivery support, and other free visual upgrade offers headed into next-generation consoles. Between 15,000 and 50,000 inboxes were targeted by a new phishing attack as of last Friday. That website is not affiliated with Microsoft or the IRS. This allows them to bypass link scanning within emails by traditional email security solutions. Recipients would be hard-pressed to understand that these sites were set up to misdirect and deceive them to steal their credentials. To keep yourself protected, make sure the check the URL and source of emails and websites. The sender email comes from the “sharepointonline-irs.com” domain, something that is misleading and one that is not owned by Microsoft. The webpages and the links the email direct to are visually identical to legitimate Microsoft Teams and Microsoft login pages. "We would advise organizations and their employees to double-check the sender name and address for messages or notifications coming from Microsoft Teams," Laio said. with 4 comments. CES is going all-digital next year, and it's tapping Microsoft to power the experience. To really maximize the ability of the Surface Pen and Slim Pen, there are some essential apps you should check out. I would like to receive news and offers from other Future brands. Top 5 programming languages for security admins to learn, Top 10 antivirus software options for security-conscious users, End user data backup policy (TechRepublic Premium), How to become a cybersecurity pro: A cheat sheet, Mastermind con man behind Catch Me If You Can talks cybersecurity, Windows 10 security: A guide for business leaders, Online security 101: Tips for protecting your privacy from hackers and spies, Cybersecurity and cyberwar: More must-read coverage. The report states that the email notifications impersonate automated notification emails from Teams that are convincing enough owing to the content and design. The specifics of the attack reported first by Abnormal Security (via WindowsCentral) suggests that the goal is to steal users’ Teams/Office 365 credentials by serving messages that redirect to phishing websites. Plus, the sender email comes from a domain called "sharepointonline-irs.com," which may look legitimate at first glance, but is not registered either by Microsoft or the IRS. Abnormal Security adds that close to 50,000 Teams users were targeted through these malicious emails. The images can be especially convincing on a mobile device where they take up most of the content on the screen. Multi-pronged Microsoft Teams impersonation attack uncovered The discovery by researchers from Abnormal Security reveals what it says is a multi-prong Microsoft Teams impersonation attack. ", Strengthen your organization's IT security defenses by keeping abreast of the latest cybersecurity news, solutions, and best practices. Prime Day may have ended, but these 25 deals are still available now! Delivered Tuesdays and Thursdays. Sign up now to get the latest news, deals & more from Windows Central! Two separate attacks have targeted as many as 50,000 different Teams users, with the goal of phishing Office 365 logins. VPN Deal! 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