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New SIM Card Flaw Lets Hackers Hijack Any Phone Just By Sending SMS

New SIM Card Flaw Lets Hackers Hijack Any Phone Just By Sending SMS
September 12, 2019Mohit Kumar
Cybersecurity researchers today revealed the existence of a new and previously undetected critical vulnerability in SIM cards that could allow remote attackers to compromise targeted mobile phones and spy on victims just by sending an SMS. Dubbed " SimJacker ," the vulnerability resides in a particular piece of software, called the S@T Browser (a dynamic SIM toolkit), embedded on most SIM cards that is widely being used by mobile operators in at least 30 countries and can be exploited regardless of which handsets victims are using. What's worrisome? A specific private company that works with governments is actively exploiting the SimJacker vulnerability from at least the last two years to conduct targeted surveillance on mobile phone users across several countries. S@T Browser , short for SIMalliance Toolbox Browser, is an application that comes installed on a variety of SIM cards, including eSIM, as part of SIM Tool Kit (STK) and has been designed to let mobile

RAMpage Attack Explained—Exploiting RowHammer On Android Again!

RAMpage Attack Explained—Exploiting RowHammer On Android Again!
June 29, 2018Mohit Kumar
A team of security researchers has discovered a new set of techniques that could allow hackers to bypass all kind of present mitigations put in place to prevent DMA-based Rowhammer attacks against Android devices. Dubbed RAMpage , the new technique (CVE-2018-9442) could re-enable an unprivileged Android app running on the victim's device to take advantage from the previously disclosed Drammer attack , a variant of DRAM Rowhammer  hardware vulnerability for Android devices, in an attempt to gain root privileges on the target device. You might have already read a few articles about RAMpage on the Internet or even the research paper, but if you are still unable to understand— what the heck is RAMpage —we have briefed the research in language everyone can understand. Before jumping directly on the details of RAMpage, it is important for you to understand what is RowHammer vulnerability, how it can be exploited using Drammer attack to hack Android devices and what mitigations G

First Android-Rooting Trojan With Code Injection Ability Found On Google Play Store

First Android-Rooting Trojan With Code Injection Ability Found On Google Play Store
June 08, 2017Mohit Kumar
A new Android-rooting malware with an ability to disable device' security settings in an effort to perform malicious tasks in the background has been detected on the official Play Store. What's interesting? The app was smart enough to fool Google security mechanism by first pretending itself to be a clean app and then temporarily replacing it with a malicious version. Security researchers at Kaspersky Lab discovered a new piece of Android rooting malware that was being distributed as gaming apps on the Google Play Store, hiding behind puzzle game " colourblock ," which was being downloaded at least 50,000 times prior to its removal. Dubbed Dvmap , the Android rooting malware disables device's security settings to install another malicious app from a third-party source and also injects malicious code into the device system runtime libraries to gain root access and stay persistent. "To bypass Google Play Store security checks, the malware creators used

All Android Phones Vulnerable to Extremely Dangerous Full Device Takeover Attack

All Android Phones Vulnerable to Extremely Dangerous Full Device Takeover Attack
May 25, 2017Swati Khandelwal
Researchers have discovered a new attack, dubbed 'Cloak and Dagger', that works against all versions of Android, up to version 7.1.2. Cloak and Dagger attack allows hackers to silently take full control of your device and steal private data, including keystrokes, chats, device PIN, online account passwords, OTP passcode, and contacts. What's interesting about Cloak and Dagger attack? The attack doesn't exploit any vulnerability in Android ecosystem; instead, it abuses a pair of legitimate app permissions that is being widely used in popular applications to access certain features on an Android device. Researchers at Georgia Institute of Technology have discovered this attack, who successfully performed it on 20 people and none of them were able to detect any malicious activity. Cloak and Dagger attacks utilise two basic Android permissions: SYSTEM_ALERT_WINDOW ("draw on top") BIND_ACCESSIBILITY_SERVICE ("a11y") The first permissi

Over 1 Billion Mobile App Accounts can be Hijacked Remotely with this Simple Hack

Over 1 Billion Mobile App Accounts can be Hijacked Remotely with this Simple Hack
November 04, 2016Swati Khandelwal
Security researchers have discovered a way to target a huge number of Android and iOS apps that could allow them to remotely sign into any victim's mobile app account without any knowledge of the victim. A group of three researchers – Ronghai Yang, Wing Cheong Lau, and Tianyu Liu – from the Chinese University of Hong Kong has found [ PPT ] that most of the popular mobile apps that support single sign-on (SSO) service have insecurely implemented OAuth 2.0. OAuth 2.0 is an open standard for authorization that allows users to sign in for other third-party services by verifying existing identity of their Google, Facebook, or Chinese firm Sina accounts. This process enables users to sign-in to any service without providing additional usernames or passwords. How are app developers required to implement OAuth? (Right Way) When a user logs into a third party app via OAuth, the app checks with the ID provider, let's say, Facebook, that it has correct authentication details. I

The Project Zero Contest — Google will Pay you $200,000 to Hack Android OS

The Project Zero Contest — Google will Pay you $200,000 to Hack Android OS
September 14, 2016Swati Khandelwal
Why waiting for researchers and bug hunters to know vulnerabilities in your products, when you can just throw a contest for that. Google has launched its own Android hacking contest with the first prize winner receiving $200,000 in cash. That's a Hefty Sum! The contest is a way to find and destroy dangerous Android vulnerabilities before hackers exploit them in the wild. The competition, dubbed ' The Project Zero Prize ,' is being run by Google's Project Zero, a team of security researchers dedicated to documenting critical bugs and making the web a safer place for everyone. What's the Requirements? Starting Tuesday and ending on March 14, 2017, the contest will only award cash prizes to contestants who can successfully hack any version of Android Nougat on Nexus 5X and 6P devices. However, the catch here is that Google wants you to hack the devices knowing only the devices' phone numbers and email addresses. For working of their exploits, contes

This Android Hacking Group is making $500,000 per day

This Android Hacking Group is making $500,000 per day
July 02, 2016Mohit Kumar
Own an Android smartphone? Hackers can secretly install malicious apps, games, and pop-up adverts on your smartphone remotely in order to make large sums of money. Security researchers at Cheetah Mobile have uncovered one of the world's largest and most prolific Trojan families, infecting millions of Android devices around the world. Dubbed Hummer , the notorious mobile trojan stealthily installs malicious apps, games, or even porn apps onto victim's phones and yields its creators more than $500,000 (£375,252) on a daily basis. First discovered in 2014 by Cheetah Mobile, Hummer gained traction in early 2016 when the Trojan family was infecting "nearly 1.4 Million devices daily at its peak" with 63,000 infections occurring daily in China, according to researchers at Cheetah Mobile Security Research Lab. "This Trojan continually pops up ads on victims' phones, which is extremely annoying," researchers wrote in a blog post. "It also pushe

Flawed Android Factory Reset Failed to Clear Private Data from Smartphones

Flawed Android Factory Reset Failed to Clear Private Data from Smartphones
May 22, 2015Swati Khandelwal
If you're planning to sell your old Android smartphone then you need to think again because there is a weakness in the Android Factory Reset option that could be exploited to recover your login credentials, text messages, emails and pictures even if you have wiped its memory clean. Computer researchers at the University of Cambridge conducted a study on Android devices from 5 different vendors and found that more than 500 Million Android devices don't completely erase data after the factory reset. "Factory Reset" function, built into Google's Android mobile operating system, is considered to be the most important feature to wipe all the confidential data out from the smartphone devices before going to sold, or recycled. However, the computer researchers found that the data could be recovered from the Android device even if users turned on full-disk encryption. The second-hand market is huge and based on the study; the researchers estimated that ov

Spy Agencies Hijack Google Play Store to Install Spyware on Smartphones

Spy Agencies Hijack Google Play Store to Install Spyware on Smartphones
May 21, 2015Mohit Kumar
I have an Android phone with a five different gmail accounts configured in it. But what if any one of them get compromised via phishing, malware or any other way? The Hacker would be able to access my Google account and obviously Google Play Store account too, which allows anyone to install any Android application remotely into my phone without my knowledge and confirmation… What if someone compromises large number of Google accounts and trigger mass installation of a spying or malware app remotely with just one click???? Yes, this was exactly what the National Security Agency (NSA) had done under its widely spread Global surveillance program. A new top-secret document obtained from the former NSA contractor Edward Snowden revealed that the NSA and its closest allies planned to hijack Google and Samsung app stores to infect smartphones with spyware. The operation was launched by the Network Tradecraft Advancement Team, including spy agents from each of the coun

Android "Fake ID" Vulnerability Allows Malware to Impersonate Trusted Apps

Android "Fake ID" Vulnerability Allows Malware to Impersonate Trusted Apps
July 30, 2014Swati Khandelwal
Due to the majority in the mobile platform, Google's Android operating system has been a prior target for cybercriminals and a recently exposed weakness in the way the operating system handles certificate validation, left millions of Android devices open to attack. Researchers at BlueBox security , who identified the vulnerability, dubbed the flaw as Fake ID , which affects all versions of Android operating system from 2.1 ( released in 2010 ) up to Android 4.4, also known as KitKat . ALL VERSIONS ARE VULNERABLE UPTO KITKAT Researchers marked the vulnerability as critical because it could allow a fake and malicious app to masquerade as a legitimate and trusted application, enabling an attacker to perform various actions such as inserting malicious code into a legitimate app, infiltrating your personal information or even take complete control of an affected device. Specifically, devices running the 3LM administration extension are at risk for a complete compromise, whic

Android Vulnerability Allows Applications to Make Unauthorized Calls without Permissions

Android Vulnerability Allows Applications to Make Unauthorized Calls without Permissions
July 08, 2014Mohit Kumar
A major vulnerability believed to be present in most versions of Android can allow a malicious Android applications on the Android app store to make phone calls on a user's device, even when they lack the necessary permissions. The critical vulnerability was identified and reported to Google Inc. late last year by researchers from German security firm Curesec. The researchers believe the virus was first noticed in Android version 4.1, also known as " Jelly Bean ." APPS CAN MAKE CALLS FROM YOUR PHONE " This bug can be abused by a malicious application. Take a simple game which is coming with this code. The game won't ask you for extra permissions to do a phone call to a toll number – but it is able to do it ," Curesec's CEO Marco Lux and researcher Pedro Umbelino said Friday in a blog post. " This is normally not possible without giving the app this special permission. " By leveraging these vulnerabilities, malicious applications could initiate unauthorized phone call

Android Privilege Escalation Flaws leave Billions of Devices vulnerable to Malware Infection

Android Privilege Escalation Flaws leave Billions of Devices vulnerable to Malware Infection
March 24, 2014Swati Khandelwal
Android -  a widely used Smartphone platform offered by Google is once again suspected to affect its users with malicious software that puts their android devices at risk. This time the vulnerabilities occur in the way Android handle the updates to add new flavors to your device. Researchers from Indiana University and Microsoft have discovered [ Paper PDF ] a new set of Android vulnerabilities that is capable to carry out privilege escalation attacks because of the weakness in its Package Management Service (PMS) that puts more than one billion Android devices at risk. The researchers dubbed the new set of security-critical vulnerabilities as Pileup flaws which is a short for privilege escalation through updating, that waylays inside the Android PMS and intensifies the permissions offered to malicious apps whenever an android update occurs, without informing users. The research was carried out by Indiana University Bloomington researchers, Luyi Xing, Xiaorui Pan, Ka

Windows Spy tool equipped with Android malware to hack Smartphones

Windows Spy tool equipped with Android malware to hack Smartphones
March 19, 2014Mohit Kumar
I am quite sure that you must be syncing your Smartphone with your Computers for transferring files and taking backup of your device. If you are using windows operating system and Android devices, then it's a bad news for you, because FireEye Security Researchers have identified a new piece of windows malware that can also infects your Android Devices. During an investigation of a targeted attack on a US based financial institution, researchers spotted a new version of Windows Remote Access Trojan (RAT) called ' Win-Spy Software Pro v16 ', a spying and monitoring tool.  WinSpy was embedded in macro documents to kick off a spam campaign via a spear phishing email. " The recent surge in Android-based RATs such as Dendroid and AndroRAT shows a spike in the interest of malicious actors to control mobile devices.  GimmeRAT  is another startling example of malicious actors venturing into the Android ecosystem ," security firm said. The Researchers dubbed the

Warning: Android Bitcoin wallet apps vulnerable to theft

Warning: Android Bitcoin wallet apps vulnerable to theft
August 12, 2013Mohit Kumar
A critical vulnerability in the Android implementation of the Java SecureRandom random number generator was discovered , that leaves Bitcoin digital wallets on the mobile platform vulnerable to theft. Before the announcement was made, users on the forums had noticed over 55 BTC were stolen a few hours after the client improperly signed a transaction using the compromised random number generator. Bitcoin is a virtual currency that makes use of cryptography to create and transfer bitcoins. Users make use of digital wallets to store bitcoin addresses from which bitcoins are received or sent. Bitcoin uses public-key cryptography so that each address is associated with a pair of mathematically linked public and private keys that are held in the wallet. Because the problem is rooted in the operating system, every Bitcoin digital wallet generated by an Android app is affected by the weakness, including Bitcoin Wallet , blockchain.info wallet , Bitcoin Spinner , and Myc
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