Posts in "Mobile Malware"

Fake WhatsApp… and the Real Malware zLabs Discovered

On November 3, 2017, some users of Reddit noticed two WhatsApp applications with the same developer name “WhatsApp Inc.” and started to investigate what looked like a fake update for the WhatsApp application. They quickly realized that the application has been downloaded more than one million times. As a part of Zimperium’s zLabs research team, … Read More

Clicking Bot Applications

Cyber crime, like any crime, has its motives; each malware has its own malicious profit. Spyware spies on you. Ransomware demands a ransom to decrypt your private digital data. Phishing Malware phishes for your username, password or account numbers. Installation-fraud achieves fake software installations. Ad fraud fraudulently represents online advertisement impressions, clicks, conversion or data … Read More

Detecting DoubleLocker Ransomware

What is DoubleLocker? Security researchers at ESET discovered a new ransomware infecting Android phones called DoubleLocker. DoubleLocker is an exploit that encrypts data on the infected device and then changes the device PIN to a random number. Victims remain locked out of their device unless they pay a ransom to the hackers. DoubleLocker spreads in the very same way … Read More

Validating Machine Learning Detection of Mobile Malware with Zimperium’s z9

Zimperium’s core machine learning engine, z9, has a proven track record of detecting zero-day exploits. We recently announced an extension of the framework that detects previously unknown mobile malware. This extension is known as “z9 for Mobile Malware”, and was officially announced in September 2017. Internally, the code name has been “Cogito”, so this research … Read More

Fake Snapchat in Google Play Store

Zimperium discovered and reported a fake version of the popular Snapchat app in the official Google Play Store; At the time of our discovery, it was the second result when searching for “Snapchat”. The fake version of Snapchat app is using “Snap Inc .” as Company Name, with a  ” .” appended to original name. … Read More