![]() The recent Sharkbot takedown is another episode in the ongoing fight against infected applications. The main differences between the versions were different DGA seeds and variations in botnetID and ownerID fields. Infected devices attempt to contact some of these domain names periodically to receive updates or commands.Īccording to the report, with DGA one sample with a hardcoded seed generates seven domains per week, and the researchers observed a total of 56 domains per week.ĭuring the research, 27 versions of Sharkbot were identified. The large number makes it difficult to effectively shut down botnets. The attacker can then use the domain names as contact points with malware command and control servers. DGA is rarely seen in Android malware. Domain generation algorithms are malware algorithms that produce a large number of domain names. Imitate the user’s swipe over the screen.Īnother unique feature in the Sharkbot arsenal is the use of the Domain Generation Algorithm (DGA).Disable battery optimization so malware can run in the background.Collect and send the device’s contact list to a server.Request permission for sending SMS messages.Overall, Sharkbot runs 22 malicious commands, including: The malware also allows the app to interact with an interface as though it were a person. It hijacks Accessibility Service, which provides the app with access to all data the user sees. The Microsoft Defender for individuals dashboard provides a glanceable view of your device’s protection status 3,5, including other antivirus solutions you may be using. Sharkbot implements a highly effective toolkit for bank data theft. The Microsoft Defender app 1,3 works with Windows Security, as well as other third-party antivirus software. If the malware detects it is running in a sandbox, it stops the execution and quits. Special evasion methods are also part of Sharkbot’s toolbox. For example, the geofencing function allows Sharkbot to ignore users from China, India, Romania, Russia, Ukraine or Belarus. Sharkbot’s Special TacticsĪccording to researchers, Sharkbot stands out among Android malware due to its special features. These six apps came from three developer accounts, Zbynek Adamcik, Adelmio Pagnotto and Bingo Like Inc. Center Security – Antivirus (2 versions).The names of the apps Google removed from its Play Store include: After a user enters their credentials, the compromised data goes to an attacker’s server. Sharkbot lures victims to enter their credentials in app screens that appear to be honest credential input forms. The malware also has special features that make it dangerous. The Sharkbot malware’s main function is to steal credentials and banking information. ![]() By the time the store deleted the infected apps, people had downloaded them about 15,000 times. Theres also a version for macOS, Android, and iOS. ![]() Attackers used these malicious apps to spread Sharkbot malware, according to a recent report. Avast Free Antivirus is compatible with Windows 11, 10, 8, and 7. Google recently took down at least six fake antivirus apps from the store. Researchers have found the Sharkbot Android malware hiding under the guise of antivirus solutions on Google’s Play Store. ![]()
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