New Sophisticated Blackmailing RedDrop Malware that Records Nearby Audio on Infected Devices

A new sophisticated more aggressive Android malware strain dubbed RedDrop contains a number of functions that cause financial and data loss on infected devices. The RedDrop malware found in more than 53 apps.

The RedDrop malware includes a number of parameters to steal sensitive data’s such as photos, contacts. images, Nearby WiFi Networks data, Application data from victim’s device.

RedDrop Malware first spotted by Mobile security firm Wandera, According to their findings, the malicious applications range from practical tools like image editors and calculators to more recreational apps covering topics like space exploration or learning new languages.

Malware found more popular in China and the creators of the malware employed more than 4,000 domains to distribute the malware.

Researchers said, “We believe the group developed this complex CDN to obfuscate where the malware was served from, making it harder for security teams to detect the source of the threat.”

Also Read Android P Limits the Use of Background Apps Accessing the Camera when the Device is Idle

How RedDrop Malware get’s into Your Device

1. Users searching for Android app in Baidu.
2. And when the user clicked on poisoned search results, it redirects through a number of URL’s and reaches the store.
3. Once the user installed and open’s the new app it send’s device details to C&C servers. Later seven other apps with malicious functions installed silently.
4. Also, it requests invasive permissions to avoid requesting permission again from users.
5. Later it makes victim’s phone subscribed to premium SMS service and can also have the ability to destroy the incoming SMS.
6. The malware also steals saved files(photos, contacts, images), Records device surrounding sounds, Device info, SIM info, Application and network data.
7. The stolen data are uploaded into remote file storage systems for use in extortion and blackmailing purposes

Researchers said, “the malicious app work as like an adult game and user must rub the screen in order to reveal a seductively-dressed female“. Each and every time the user rub’s the screen an SMS message to the premium service.

Common Defences On Mobile Threats

• Give careful consideration to the permission asked for by applications.
• Download applications from trusted sources.
• Stay up with the latest version.
• Encrypt your devices.
• Make frequent backups of important data.
• Install anti-malware on their devices.
• Stay strict with CIA Cycle.