The APK, once dynamically clicked by wrapper variant, asks the user to install it. Named GhostCtrl, the backdoor typically masquerades as a legitimate app (e.g., WhatsApp) and base64-decodes a string from the app’s resource file and writes it down, which is a malicious APK. Researchers at Trend Micro discovered an Android backdoor that can not only steal all types of data, but also take full control of the Android handset. There is no shortage of Android security threats out there, but it’s not often that users encounter a threat that can do as much as a malicious APK. The backdoor even has a successor in the shape of BO2K (Back Orifice 2000), which enables unauthorized access to Windows Vista and XP. The payload creates a copy of itself in the system directory of the Windows application as well as inserting a value containing its filename to the Windows registry below the key. This was commended by the majority of cybercriminals who managed to use Back Orifice as a malicious payload. The idea was to demonstrate underlying security problems in Microsoft Windows 98, so it had abilities such as being able to hide itself within the application. Back Orificeĭeveloped in 1998, the Back Orifice backdoor enabled its creators to remotely control systems running Microsoft Windows. ![]() This attack hinted for the need to stay vigilant against enterprise application backdoors where critical data in a corporate application is compromised in order to gain open access on the software for process creation, surveillance and theft. If the data transmitted to the backdoor creators were of any interest, their C&C (command and control) servers would respond by triggering the backdoor’s function to execute additional payloads. Dubbed ShadowPad, the backdoor has the ability to download and install additional malware as well as spoof data. Back in 2017, security researchers discovered an advanced backdoor integrated into the server management applications of South Korea- and U.S.-based NetSarang.
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