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Over 20 Million Users Installed Malicious Ad Blockers From Chrome Store

Over 20 Million Users Installed Malicious Ad Blockers From Chrome Store

April 20, 2018Mohit Kumar
If you have installed any of the below-mentioned Ad blocker extension in your Chrome browser, you could have been hacked. A security researcher has spotted five malicious ad blockers extension in the Google Chrome Store that had already been installed by at least 20 million users. Unfortunately, malicious browser extensions are nothing new. They often have access to everything you do online and could allow its creators to steal any information victims enter into any website they visit, including passwords, web browsing history and credit card details. Discovered by Andrey Meshkov, co-founder of Adguard, these five malicious extensions are copycat versions of some legitimate, well-known Ad Blockers. Creators of these extensions also used popular keywords in their names and descriptions to rank top in the search results, increasing the possibility of getting more users to download them. "All the extensions I've highlighted are simple rip-offs with a few lines of co
Critical Flaw in Grammarly Spell Checker Could Let Attackers Steal Your Data

Critical Flaw in Grammarly Spell Checker Could Let Attackers Steal Your Data

February 06, 2018Swati Khandelwal
A critical vulnerability discovered in the Chrome and Firefox browser extension of the grammar-checking software Grammarly inadvertently left all 22 million users' accounts, including their personal documents and records, vulnerable to remote hackers. According to Google Project Zero researcher Tavis Ormandy, who discovered the vulnerability on February 2, the Chrome and Firefox extension of Grammarly exposed authentication tokens to all websites that could be grabbed by remote attackers with just 4 lines of JavaScript code. In other words, any website a Grammarly user visits could steal his/her authentication tokens, which is enough to login into the user's account and access every "documents, history, logs, and all other data" without permission. "I'm calling this a high severity bug, because it seems like a pretty severe violation of user expectations," Ormandy said in a vulnerability report . "Users would not expect that visiting a we
Beware of Cryptocurrency Mining Virus Spreading Through Facebook Messenger

Beware of Cryptocurrency Mining Virus Spreading Through Facebook Messenger

December 22, 2017Swati Khandelwal
If you receive a video file ( packed in zip archive ) sent by someone ( or your friends ) on your Facebook messenger — just don't click on it. Researchers from security firm Trend Micro are warning users of a new cryptocurrency mining bot which is spreading through Facebook Messenger and targeting Google Chrome desktop users to take advantage of the recent surge in cryptocurrency prices. Dubbed Digmine , the Monero-cryptocurrency mining bot disguises as a non-embedded video file, under the name "video_xxxx.zip" (as shown in the screenshot), but is actually contains an AutoIt executable script. Once clicked, the malware infects victim's computer and downloads its components and related configuration files from a remote command-and-control (C&C) server. Digimine primarily installs a cryptocurrency miner, i.e.  miner.exe—a modified version of an open-source Monero miner known as XMRig —which silently mines the Monero cryptocurrency in the background for h
8 More Chrome Extensions Hijacked to Target 4.8 Million Users

8 More Chrome Extensions Hijacked to Target 4.8 Million Users

August 16, 2017Swati Khandelwal
Google's Chrome web browser Extensions are under attack with a series of developers being hacked within last one month. Almost two weeks ago, we reported how unknown attackers managed to compromise the Chrome Web Store account of a developer team and hijacked Copyfish extension , and then modified it to distribute spam correspondence to users. Just two days after that incident, some unknown attackers then hijacked another popular extension ' Web Developer ' and then updated it to directly inject advertisements into the web browser of over its 1 million users. After Chris Pederick, the creator of 'Web Developer' Chrome extension that offers various web development tools to its users, reported to Proofpoint that his extension had been compromised, the security vendor analysed the issue and found further add-ons in the Chrome Store that had also been altered. According to the latest report published by the researchers at Proofpoint on Monday, the expanded
Hackers Hijacked Chrome Extension for Web Developers With Over 1 Million Users

Hackers Hijacked Chrome Extension for Web Developers With Over 1 Million Users

August 03, 2017Swati Khandelwal
From past few years, spammers and cyber criminals were buying web extensions from their developers and then updating them without informing their users to inject bulk advertisements into every website user visits in order to generate large revenue. But now they have shifted their business model—instead of investing, spammers have started a new wave of phishing attacks aimed at hijacking popular browser extensions. Just two days ago, we reported how cyber criminals managed to compromise the Chrome Web Store account of a German developer team and hijacked Copyfish extension , and then modified it with ad-injection capabilities to distribute spam correspondence to users. Now just yesterday, another popular Chrome extension ' Web Developer ' was hijacked by some unknown attackers, who updated the software to directly inject advertisements into the web browser of over its 1 million users. Chris Pederick , the creator of Web Developer Chrome extension that offers various w
Someone Hijacks A Popular Chrome Extension to Push Malware

Someone Hijacks A Popular Chrome Extension to Push Malware

July 31, 2017Swati Khandelwal
Phishers have recently hacked an extension for Google Chrome after compromising the Chrome Web Store account of German developer team a9t9 software and abused to distribute spam messages to unsuspecting users. Dubbed Copyfish, the extension allows users to extract text from images, PDF documents and video, and has more than 37,500 users. Unfortunately, the Chrome extension of Copyfish has been hijacked and compromised by some unknown attacker, who equipped the extension with advertisement injection capabilities. However, its Firefox counterpart was not affected by the attack. The attackers even moved the extension to their developer account, preventing its developers from removing the infected extension from the store, even after being spotted that the extension has been compromised. "So far, the update looks like standard adware hack, but, as we still have no control over Copyfish, the thieves might update the extension another time… until we get it back," the de
Gang Behind Fireball Malware that Infected 250 Million PCs Busted by Police

Gang Behind Fireball Malware that Infected 250 Million PCs Busted by Police

July 26, 2017Mohit Kumar
Chinese authorities have recently initiated a crackdown on the operators of a massive adware campaign that infected around 250 Million computers , including Windows and Mac OS, across the world earlier this year. The adware campaign was uncovered by security researchers at Check Point last month after it already infected over 25 million computers in India, 24 million in Brazil, 16 million in Mexico, 13 million in Indonesia and 5.5 million in the United States. Dubbed Fireball , the infamous adware comes bundled with other free legitimate software that you download off the Internet. Once installed, the malware installs browser plug-ins to manipulate the victim's web browser configurations and replace their default search engines and home pages with fake search engines. Far from legitimate purposes, Fireball has the ability to spy on victim's web traffic, execute malicious code on the infected computers, install plugins, and even perform efficient malware dropping, cr
Critical RCE Vulnerability Found in Cisco WebEx Extensions, Again — Patch Now!

Critical RCE Vulnerability Found in Cisco WebEx Extensions, Again — Patch Now!

July 17, 2017Swati Khandelwal
A highly critical vulnerability has been discovered in the Cisco Systems' WebEx browser extension for Chrome and Firefox, for the second time in this year, which could allow attackers to remotely execute malicious code on a victim's computer. Cisco WebEx is a popular communication tool for online events, including meetings, webinars and video conferences that help users connect and collaborate with colleagues around the world. The extension has roughly 20 million active users. Discovered by Tavis Ormandy of Google Project Zero and Cris Neckar of Divergent Security, the remote code execution flaw (CVE-2017-6753) is due to a designing defect in the WebEx browser extension. To exploit the vulnerability, all an attacker need to do is trick victims into visiting a web page containing specially crafted malicious code through the browser with affected extension installed. Successful exploitation of this vulnerability could result in the attacker executing arbitrary code with th
LastPass Bug Lets Hackers Steal All Your Passwords

LastPass Bug Lets Hackers Steal All Your Passwords

July 28, 2016Swati Khandelwal
A critical zero-day flaw has been discovered in the popular cloud password manager LastPass that could allow any remote attacker to compromise your account completely. LastPass is one of the best password manager that also available as a browser extension that automatically fills credentials for you. All you need is to remember one master password to unlock all other passwords of your different online accounts, making it much easier for you to use unique passwords for different sites. However, the password manager isn't as secure as it promises. Also Read:  Popular Password Managers Are Not As Secure As You Think Google Project Zero Hacker Tavis Ormandy discovered several security issues in the software that allowed him to steal passwords stored with LastPass. " Are people really using this LastPass thing? I took a quick look and can see a bunch of obvious critical problems. I'll send a report asap ," Ormandy revealed on Twitter . Once compromise a v
Google makes it mandatory for Chrome Apps to tell Users what Data they collect

Google makes it mandatory for Chrome Apps to tell Users what Data they collect

April 19, 2016Mohit Kumar
In Brief Chrome apps and extensions make things easier, but they can also do terrible things like spy on web users and collect their personal data. But, now Google has updated its browser's User Data Policy requiring all Chrome extension and app developers to disclose what data they collect. Furthermore, developers are prohibited from collecting unnecessary browsing data and must also use encryption when handling sensitive information from users. Around 40 percent of all Google Chrome users have some kind of browser extensions, plugins or add-ons installed, but how safe are they? The company plans to enforce developers starting this summer, to "ensure transparent use of the data in a way that is consistent with the wishes and expectations of users." Google is making its Chrome Web Store safer for its users by forcing developers to disclose how they handle customers' data. Google's new User Data Policy will now force app developers, who use the Chrome We
5 Things Google has Done for Gmail Privacy and Security

5 Things Google has Done for Gmail Privacy and Security

March 29, 2016Unknown
Over the past few years, Google has increasingly improved the online security and protections of its Gmail users. Besides two-factor authentication and HTTPS, Google has added new tools and features to Gmail that ensures users security and privacy, preventing cyber criminals and intelligence agencies to hack email accounts . 1. Enhanced State-Sponsored Attack Warnings Apple vs. FBI case urged every company to beef up the security parameters to prevent their services from not just hackers but also the law enforcement. Google for a while now has the capability to identify government-backed hackers , and notify potentially affected Gmail users so they can take action as soon as possible. Google recently announced on its blog post that it will alert Gmail users about the possibility of any state-sponsored attack by showing them a full-page warning with instructions about how to stay safe — very hard to miss or neglect. Meanwhile, the company revealed that ove
Mozilla Firefox Launches Web Extensions API to Support Chrome and Opera Extensions

Mozilla Firefox Launches Web Extensions API to Support Chrome and Opera Extensions

August 24, 2015Khyati Jain
Should we feel happy about it? Let's find out! What Firefox has been thinking of is, it is planning to bring in Google chrome's web browser extensions to support the features of Mozilla Firefox. The parent company of Firefox i. e. Mozilla Foundation has decided to update their add-on and extension infrastructure, making Firefox more capable and user-friendly . Ranked number three, Firefox browser is seemingly thriving to attain the first position. Google Chrome and Internet Explorer are the ones ahead of it, leading to desktops and mobile devices altogether. The move will help Firefox in various ways like: Integration of new technologies like Electrolysis and Servo Protection from Adware and Spyware Shortening the time it takes to review add-ons Functionalities brought by Mozilla According to Mozilla, functionalities that are being brought with the help of modifications in Firefox Add-ons are: Introducing a Powerful add-on WebExtensions API A
This Facebook Hack Allows You to Track Your Friends On Map

This Facebook Hack Allows You to Track Your Friends On Map

May 27, 2015Mohit Kumar
Remember the magical Marauder's Map from the Harry Potter books that reveal the whereabouts of characters as they roam classrooms and the halls of Hogwarts school? A student developer from Cambridge has created a Chrome extension that works similar and also named it Marauder's Map . The extension that allows you to watch every footstep of your Facebook friends by grabbing location data from Facebook Messenger and rapidly plotting your friends' locations on a map. We all are aware that Facebook shares our location data with our friends, however, what we probably aren't aware of the accuracy of that data and easiness of extracting that data from the messaging service. LOCATION SHARING AND MAPPING... Facebook usually encourages Messenger users to share their location by enabling location sharing by default when users install iOS or Android app. Software developer Aran Khanna's extension dubbed Marauder's Map, loads the map in Messenger's Web interface and fetc
Free Tool Allows Anyone to View Facebook Users' Hidden Friends List

Free Tool Allows Anyone to View Facebook Users' Hidden Friends List

May 08, 2015Mohit Kumar
Facebook lets you control your every single information posted on the social media site by giving many options to make them private from others, even from your friends. But… There are some personal information on Facebook that you just cannot completely hide — Your friends list are among those, even if there is an option to hide it. The issue resides in the Facebook's mutual-friends feature concept, which has been in controversies in the past, raising privacy concerns. But now, a new Free Chrome extension called " Facebook Friends Mapper " (developed by Alon Kollmann ) can expose a lot more than just mutual friends of the two Facebook users in " just one click ," creating high security and Privacy risks for Facebook users. Generally, Facebook also allows you to set the visibility of your list of Facebook friends to "Only Me" if you want to keep your friends list hidden from other Facebook users as well as your own friends. Howe
Hacker Finds a Simple Way to Bypass Google Password Alert

Hacker Finds a Simple Way to Bypass Google Password Alert

May 02, 2015Mohit Kumar
Less than 24 hours after Google launched the new Phishing alert extension Password Alert , a security researcher was able to bypass the feature using deadly simple exploits. On Wednesday, the search engine giant launched a new Password Alert Chrome extension to alert its users whenever they accidentally enter their Google password on a carefully crafted phishing website that aimed at hijacking users' account. However, security expert Paul Moore easily circumvented the technology using just seven lines of simple JavaScript code that kills phishing alerts as soon as they started to appear, defeating Google's new Password Alert extension. Google shortly fixed the issue and released a new update to Password Alert extension that blocked the Moore's exploit. However, Moore discovered another way to block the new version of Password Alert, as well. The first proof of concept exploit by Moore relied on a JavaScript that looks for instances of warning screen every five mil
Simplest Way to Check If Your Emails Are Being Tracked

Simplest Way to Check If Your Emails Are Being Tracked

March 23, 2015Mohit Kumar
You might be not aware of the companies that know pretty much everything related to your email activities like when you've opened email sent by one of their clients, where you are located, what device you're using, what link you click, all without your consent, even if you haven't click any link provided in that email. Companies like Yesware , Bananatag, and Streak track emails , usually by adding small pixels or images to those emails which inform the companies that when and where their emails have been opened by the recipients. If you find this something different then let you know that this sort of email tracking is very common practice adopted by many companies. However, in order to detect these tracking emails, now you have a simple but effective tool. UGLY EMAIL -- DETECT EMAIL TRACKERS Dubbed " Ugly Email ", a new Chrome extension warns you when an email you receive in your Gmail inbox have the ability to track you, and it even works before opening t
Google Releases Chrome Extension for End-To-End Email Encryption

Google Releases Chrome Extension for End-To-End Email Encryption

December 18, 2014Mohit Kumar
Back in june this year, Google announced an alpha Google Chrome extension called " End-to-End " for sending and receiving emails securely, in wake of former NSA contractor Edward Snowden's revelations about the global surveillance conducted by the government law-enforcements. Finally, the company has announced that it made the source code for its End-to-End Chrome extension open source via GitHub . Google is developing a user-friendly tool for individuals to implement the tough encryption standard known as Pretty Good Privacy (PGP) in an attempt to fully encrypt people's Gmail messages that can't even be read by Google itself, nor anyone else other than the users exchanging the emails. PGP is an open source end-to-end encryption standard for almost 20 years, used to encrypt e-mail over the Internet providing cryptographic privacy and authentication for data communication, which makes it very difficult to break. But implementing PGP is too complicated for m
How To Run Almost Any Android App On Windows, OS X, Linux with Chrome

How To Run Almost Any Android App On Windows, OS X, Linux with Chrome

September 22, 2014Wang Wei
From last week, Google began paving the way to run Android apps on Chrome Operating System through the project named " App Runtime for Chrome ", but the release came with a lot of limitations – it only supported certain Android apps and on Chrome OS only. At the launch, initially only 4 Android apps – Vine, Evernote, Duolingo and Sight Words – were added to the Chrome Web Store. That was pretty exciting, but it merely whet the appetite of users hungry for more functionality. So, what if you could run more than just 4 Android apps on Chrome OS? And Also could run them on other operating systems as well? A developer by the name of " Vlad Filippov " began working on it to stripped away the limits Google has imposed. He successfully figured out a way to bring more Android apps to Chrome , instead of just the four that are officially supported by Google. The bigger success was that when Filippov got Android apps to work on any desktop Operating System tha
Malware Can Bypass Chrome Extension Security Feature Easily

Malware Can Bypass Chrome Extension Security Feature Easily

September 06, 2014Mohit Kumar
Researchers have uncovered a new social engineering trick that leads users to a malicious extension from Google Chrome impersonating to deliver Adobe's Flash Player in order to lure victims in a click fraud campaign. Security experts at TrendMicro believe that the malware is triggered by opening Facebook or Twitter via shortened links provided in any social networking websites. Once clicked, the links may lead victims to a site that automatically downloads the malicious browser extension . MALWARE INVOLVES DOWNLOADING MULTIPLE MALICIOUS FILES The process is quite complicated as the malware drops a downloader file which downloads multiple malicious files on the victim's computer. Moreover, the malicious program also has ability to bypass Google's recent security protection added to Chrome against installation of browser extensions that are not in Chrome Web Store. Researchers came across a baiting tweet that advertises " Facebook Secrets ", claiming to show videos
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