Backdoor.NoteBot

Backdoor.NoteBot Description

Backdoor.NoteBot is a detection name, which was given to threats that were released to computer users via spam emails, Web injects, exploit kits and fake software update packages. Backdoor.NoteBot is a Trojan that functions as a remote computer administration tool. The NoteBot Backdoor Trojan is a threat that allows a hacker to manipulate an infected device remotely. Usually, threats like the NoteBot Backdoor Trojan create an additional administrator account and hide it in the system. The hacker's account is connected to an open network port, and the Backdoor Trojan may not be required to run on the compromised machine. Cyber security analysts reported the discovery of NoteBot in the first week of August 2017, and it appears that the Trojan is using a custom code unlike many Trojans of the same class that are based on open-source code.

Analysis performed on the samples of Backdoor.NoteBot showed that the program is designed to run in the system background continuously. The NoteBot Backdoor Trojan was found to inject code into the Sticky Note desktop app baked into the latest versions of Windows. The Sticky Note app has Internet connectivity, and its data transmissions go through port 8080, which is a port that many legitimate programs use to access content on the Web and remote servers. AV scanners monitor traffic via port 8080, but the NoteBot Backdoor Trojan was found to use an encrypted channel, which may delay detection and prevent some security tools from being triggered. Additionally, the NoteBot Backdoor Trojan was detected to inject corrupted libraries in the Windows Explorer and enable a remote attacker to delete, move, edit and track files on the system. The elevated privileges that come with the NoteBot Backdoor Trojan granted an attacker the ability to install and run programs, as well as terminate processes listed in the Task Manager. Malware researchers stated that the NoteBot Backdoor Trojan was used in attacks on regular users primarily and it did not manage to infect too many users. It is best to make sure you have the latest security patches and updates installed, as well as disable the macros in your word processor. You can remove hidden administrator accounts created with threats like the NoteBot Backdoor Trojan and erase corrupted code with help from a credible anti-malware solution.

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