The Hacker News - Cybersecurity News and Analysis: adware

Google has banned nearly 600 Android apps from the Play Store for bombarding users with disruptive ads and violating its advertising guidelines. The company categorizes disruptive ads as "ads that are displayed to users in unexpected ways, including impairing or interfering with the usability of device functions," such as a full-screen ad served when attempting to make a phone call. Although Google didn't name the specific apps in question, many of the apps — which had been installed more than 4.5 billion times — primarily targeted English-speaking users and were mainly from developers based in China, Hong Kong, Singapore, and India, according to Buzzfeed News. Highlighting that malicious developers are getting "more savvy in deploying and masking disruptive ads," the company said it has developed new counter mechanisms to detect such behavior. Trouble in Google Play Store This is not the first time adware apps have been removed from the Google P

First of all, if you have any of the below-listed apps installed on your Android device, you are advised to uninstall it immediately. Cybersecurity researchers have identified 42 apps on the Google Play Store with a total of more than 8 million downloads, which were initially distributed as legitimate applications but later updated to maliciously display full-screen advertisements to their users. Discovered by ESET security researcher Lukas Stefanko, these adware Android applications were developed by a Vietnamese university student, who easily got tracked likely because he never bothered to hide his identity. The publicly available registration details of a domain associated with the adware apps helped find the identity of the rogue developer, including his real name, address, and phone number, which eventually led the researcher to his personal accounts on Facebook, GitHub, and YouTube. "Seeing that the developer did not take any measures to protect his identity, it

Are you sure the WhatsApp app you are using on your Android device is legitimate, even if it's working perfectly as intended? ...Or the JioTV, AppLock, HotStar, Flipkart, Opera Mini or Truecaller app—if you have installed any of these? I'm asking this because cybersecurity researchers just yesterday revealed eye-opening details about a widespread Android malware campaign wherein attackers silently replaced installed legitimate apps with their malicious versions on nearly 25 million mobile phones. Now the important question here is how they're doing it and why? According to researchers at Check Point, attackers are distributing a new kind of Android malware that disguises itself as innocent-looking photo editing, adult entertainment, or gaming apps and available through widely used third-party app stores. Dubbed Agent Smith , the malware takes advantage of multiple Android vulnerabilities, such as the  Janus flaw and the Man-in-the-Disk flaw , and injects malic

Google has removed 85 apps from its Play Store after finding out that they were pushing aggressive, full-screen adware to Android users. With the rise in the mobile market, Adware has become one of the most prevalent mobile threats in the world. Adware has traditionally been used to aggressively push ads like banners or pop-ups on mobile screens to make money for its makers. The now-removed 85 apps in question disguised as games, streaming TV, and remote control simulator apps in the Google Play store and had collectively been installed by nine million users all over the world. Researchers from cyber security company Trend Micro spotted these apps which has the ability to bombard user devices with full-screen advertisements at regular intervals or when users unlock their device by monitoring their screen unlocking functionality. The apps can display ads even when you are not browsing the internet, hide themselves and run in the background on infected devices. The most popul

A highly popular top-tier app in Apple's Mac App Store that's designed to protect its users from adware and malware threats has been, ironically, found surreptitiously stealing their browsing history without their consent, and sending it to a server in China. What's more concerning? Even after Apple was warned a month ago, the company did not take any action against the app. The app in question is "Adware Doctor," the Mac App Store No. 1 paid utility and also ranked as the fourth most popular paid app on the store, which sells for $4.99 and markets itself to be the "best app" to prevent "malware and malicious files from infecting your Mac." However, a security researcher with the @privacyis1st Twitter handle detected Adware Doctor's suspicious spyware-like behavior almost a month ago and also uploaded a proof-of-concept video demonstration of how the user's browser history is exfiltrated. The researcher informed Apple about

Security researchers have been warning of a few newly detected variants of python -based adware that are being distributed in the wild not only to inject ads but also found installing malicious browser extensions and hidden cryptocurrency miner into victims' computers. Dubbed PBot , or PythonBot , the adware was first uncovered more than a year ago, but since then the malware has evolved, as its authors have been trying different money-making schemes to profit themselves, according to researchers at Kaspersky Labs. The previous versions of the PBot malware were designed to perform man-in-the-browser (MITB) attacks to inject unwanted advertising scripts on web pages visited by the victim, but the newer variants have been found installing malicious ad extensions in the web browser. "Developers are constantly releasing new versions of this modification, each of which complicates the script obfuscation," Kaspersky researchers said in their blog post published today.

Security researchers have discovered a massive continuously growing malware campaign that has already infected nearly 5 million mobile devices worldwide. Dubbed RottenSys , the malware that disguised as a 'System Wi-Fi service' app came pre-installed on millions of brand new smartphones manufactured by Honor, Huawei, Xiaomi, OPPO, Vivo, Samsung and GIONEE—added somewhere along the supply chain. All these affected devices were shipped through Tian Pai, a Hangzhou-based mobile phone distributor, but researchers are not sure if the company has direct involvement in this campaign. According to Check Point Mobile Security Team, who uncovered this campaign, RottenSys is an advanced piece of malware that doesn't provide any secure Wi-Fi related service but takes almost all sensitive Android permissions to enable its malicious activities. "According to our findings, the RottenSys malware began propagating in September 2016. By March 12, 2018, 4,964,460 devices were

If you came across any Facebook message with a video link sent by anyone, even your friend — just don't click on it. Security researchers at Kaspersky Lab have spotted an ongoing cross-platform campaign on Facebook Messenger, where users receive a video link that redirects them to a fake website, luring them to install malicious software. Although it is still unclear how the malware spreads, researchers believe spammers are using compromised accounts, hijacked browsers, or clickjacking techniques to spread the malicious link. The attackers make use of social engineering to trick users into clicking the video link, which purports to be from one of their Facebook friends, with the message that reads "< your friend name > Video" followed by a bit.ly link, as shown. Here's How this Cross-Platform Malware Works: The URL redirects victims to a Google doc that displays a dynamically generated video thumbnail, like a playable movie, based on the sender'

Over 500 different Android apps that have been downloaded more than 100 million times from the official Google Play Store found to be infected with a malicious ad library that secretly distributes spyware to users and can perform dangerous operations. Since 90 per cent of Android apps is free to download from Google Play Store, advertising is a key revenue source for app developers. For this, they integrate Android SDK Ads library in their apps, which usually does not affect an app's core functionality. But security researchers at mobile security firm Lookout have discovered a software development kit (SDK), dubbed Igexin, that has been found delivering spyware on Android devices. Developed by a Chinese company to offer targeted advertising services to app developers, the rogue 'Igexin' advertising software was spotted in more than 500 apps on Google's official marketplace, most of which included: Games targeted at teens with as many as 100 million download

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

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

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

Security researchers have discovered a massive malware campaign that has already infected more than 250 million computers across the world, including Windows and Mac OS. Dubbed Fireball , the malware is an adware package that takes complete control of victim's web browsers and turns them into zombies, potentially allowing attackers to spy on victim's web traffic and potentially steal their data. Check Point researchers, who discovered this massive malware campaign, linked the operation to Rafotech, a Chinese company which claims to offer digital marketing and game apps to 300 million customers. While the company is currently using Fireball for generating revenue by injecting advertisements onto the browsers, the malware can be quickly turned into a massive destroyer to cause a significant cyber security incident worldwide. Fireball comes bundled with other free software programs that you download off of the Internet. Once installed, the malware installs browser plug

Security researchers have claimed to have discovered possibly the largest malware campaign on Google Play Store that has already infected around 36.5 million Android devices with malicious ad-click software. The security firm Checkpoint on Thursday published a blog post revealing more than 41 Android applications from a Korean company on Google Play Store that make money for its creators by creating fake advertisement clicks from the infected devices. All the malicious apps, developed by Korea-based Kiniwini and published under the moniker ENISTUDIO Corp, contained an adware program, dubbed Judy, that is being used to generate fraudulent clicks to generate revenue from advertisements. Moreover, the researchers also uncovered a few more apps, published by other developers on Play Store, inexplicably containing the same the malware in them. The connection between the two campaigns remains unclear, though researchers believe it is possible that one developer borrowed code from

If the death of online privacy rules wasn't enough for Internet Service Providers and advertisers to celebrate, Verizon has planned to pre-install spyware on customers' Android devices in order to collect their personal data. The telecom giant has partnered with Evie Launcher to bring a new application called ' AppFlash ' — a universal search bar that will come pre-installed on the home screens of all Verizon Android handsets for quickly finding apps and web content. AppFlash is simply a Google search bar replacement, but instead of collecting and sending telemetry data including what you search, handset, apps and other online activities to Google, it will send to Verizon. What's worse? Just like other pre-installed bloatware apps, Android users can't uninstall AppFlash quickly, unless they have rooted their phone. AppFlash allows you to search inside apps or browse through listings of nearby restaurants and entertainment. The built-in Google Search

Security researchers have uncovered a new piece of Adware that replaces your entire browser with a dangerous copy of Google Chrome , in a way that you will not notice any difference while browsing. The new adware software, dubbed " eFast Browser ," works by installing and running itself in place of Google Chrome The adware does all kinds of malicious activities that we have seen quite often over the years: Generates pop-up, coupon, pop-under and other similar ads on your screen Placing other advertisements into your web pages Redirects you to malicious websites containing bogus contents Tracking your movements on the web to help nefarious marketers send more crap your way to generating revenue Therefore, having eFast Browser installed on your machine may lead to serious privacy issues or even identity theft. What's Nefariously Intriguing About this Adware? The thing that makes this Adware different from others is that instead of taking contr

Google Android has been a primary concern of the attackers. Counting from a simple text message that could hack an Android phone remotely to the Stagefright bug making Billion users vulnerable. Now, the latest is the ' Kemoge Malware ' that has made its debut as an Adware on the Android mobile phones, allowing third-party app stores to fetch your device's information and take full control of it. Security researchers from FireEye Labs have discovered that Kemoge malicious adware family is spreading in 20 countries around the globe. Also, the origin of the Adware's attack is suspected from China. What is Kemoge? The name given to the malicious Adware family is because of its command and control (C2) domain: aps.kemoge.net. Kemoge is an Adware in the disguise of popular Apps; it has circulated in such numbers because it takes the name of popular apps and repackages them with the malicious code and make them available to the user. They even use

In the War against Ad injectors , Google has started removing ad-injecting extensions for its Chrome browser after it discovered as many as 200 Chrome extensions that exposed Millions of its users to malicious software and fraudulent activities. While working with a team of researchers from the University of California, Berkeley, the search engine giant found that over 5 percent of its users were infected with ' Ad Injectors ' — software that inserts ads or replace existing ads into the pages you visit while browsing the web. In last three months, Google received more than 100,000 complaints from its Chrome users about ad injection, which is far more than what the company receives for network errors, performance problems, or any other issue. Ad Injectors are sometimes more than just intrusive. A visitor to a website can be tricked into downloading an unwanted software and programs that could result in a major security risk, just what happened in the recent Sup