The AVLay RAT (Remote Access Trojan) has been spotted in campaigns targeting users located in Brazil mainly. This threat is written in the Delphi coding language. Normally, RATs have a list of capabilities which hackers take advantage of such as the ability to collect files, plant malware, access files, and processes, etc. It is interesting that the AVLay RAT's main target is any financial information that may be hosted on the compromised system.

Detects Browser Activity Regarding Banking Portals

When the AVLay RAT infects a system, its first task is to establish a connection with the C&C (Command & Control) server of the attackers. This way, the AVLay RAT can siphon information about the activity of the victim. The AVLay RAT keeps an eye for any browser activity regarding certain Brazilian banking portals. Once such activity is detected, the AVLay RAT will waste no time and contact the attackers with the information immediately.

Collects Banking Login Credentials

Once the attackers receive the notification of the AVLay RAT, they can use the keylogger of their threat to collect the login credentials of the user. However, they can instead take a screenshot of the screen or even launch a bogus overlay which would urge the user to put in the login data, and the attackers will collect it. The overlay will appear to be a legitimate page and could even ask the user for a 2FA (two-factor authentification) thus collecting additional data. The attackers have also tailored the overlay to display a bogus chat window which normally would be used to contact a bank employee for help. It is clear to see that the authors of the AVLay RAT have put in a fair bit of effort and employed a number of social engineering techniques so that they can trick the user into handing them over their banking information.

One should be vigilant when entering their banking information particularly as the AVLay RAT is not the only predator out there that targets innocent users' finance. It is crucial that you download and install a reputable anti-malware application which would keep your system and your finances safe.


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