DualToy: New Windows Trojan Sideloads Risky Apps to Android and iOS Devices

Over the past two years, we’ve observed many cases of Microsoft Windows and Apple iOS malware designed to attack mobile devices. This attack vector is increasingly popular with malicious actors as almost everyone on the planet carries at least one mobile device they interact with throughout any given day. Thanks to a relative lack of

AceDeceiver: First iOS Trojan Exploiting Apple DRM Design Flaws to Infect Any iOS Device

We’ve discovered a new family of iOS malware that successfully infected non-jailbroken devices we’ve named “AceDeceiver”. What makes AceDeceiver different from previous iOS malware is that instead of abusing enterprise certificates as some iOS malware has over the past two years, AceDeceiver manages to install itself without any enterprise certificate at all. It does so

New OS X Ransomware KeRanger Infected Transmission BitTorrent Client Installer

On March 4, we detected that the Transmission BitTorrent client installer for OS X was infected with ransomware, just a few hours after installers were initially posted. We have named this Ransomware “KeRanger.” The only previous ransomware for OS X we are aware of is FileCoder, discovered by Kaspersky Lab in 2014. As FileCoder was

Pirated iOS App Store’s Client Successfully Evaded Apple iOS Code Review

Apple’s official iOS App Store is well known for its strict code review of any app submitted by a developer. This mandatory policy has become one of the most important mechanisms in the iOS security ecosystem to ensure the privacy and security of iOS users. But we recently identified an app that demonstrated new ways

New Android Trojan “Xbot” Phishes Credit Cards and Bank Accounts, Encrypts Devices for Ransom

We recently discovered 22 Android apps that belong to a new Trojan family we’re calling “Xbot”. This Trojan, which is still under development and regularly updated, is already capable of multiple malicious behaviors. It tries to steal victims’ banking credentials and credit card information via phishing pages crafted to mimic Google Play’s payment interface as

iOS Trojan “TinyV” Attacks Jailbroken Devices

In October 2015, we discovered a malicious payload file targeting Apple iOS devices. After investigating, we believe the payload belongs to a new iOS Trojan family that we’re calling “TinyV”. In December 2015, Chinese users reported they were infected by this malware. After further research, we found the malware has been repackaged into several pirated

BackStab: Mobile Backup Data Under Attack from Malware

Today we are releasing a whitepaper describing how malicious actors are stealing private mobile device data by accessing local backup files stored on PC and Mac computers. We have identified 704 samples of six Trojan, adware and HackTool families for Windows® or Mac® OS X® systems that used this technique to steal data from iOS

Rootnik Android Trojan Abuses Commercial Rooting Tool and Steals Private Information

We recently analyzed a Trojan named “Rootnik” which uses a customized commercial root tool named “Root Assistant” to gain root access on Android devices. By reverse engineering and repackaging this tool, the creators of Rootnik successfully stole at least five exploits that give them root access to Android devices that are running Android 4.3 and

Chinese Taomike Monetization Library Steals SMS Messages

Mobile app creators are often looking for ways to monetize their software. One of the most common ways to do this is by displaying advertisements to users or by offering in-app purchases (IAPs). Mobile monetization platforms create software libraries that authors can embed into their apps to start earning money quickly. We previously highlighted the

More Details on the XcodeGhost Malware and Affected iOS Apps

A few days ago, we investigated a new malware called XcodeGhost that modifies Xcode, infects iOS apps and is seen in the App Store. We also found more than 39 iOS apps were infected, including versions of some pretty popular apps like WeChat or Didi, potentially affecting hundreds of millions iOS users. We also analyzed