Hackers Launching Unique Windows and MacOS Malware via Fake WhatsApp Official Website

Researchers discovered a new malware that infect MacOS via malicious website by disguised as WhatsApp official website where it also drops a malware for Windows Operating system.

Attackers are targeting both Windows and MacOS operating system to injecting a backdoor that helps to execute malicious code from a remote server.

Backdoor named as Mac.BackDoor.Siggen.20 gets on victims’ devices via websites controlled by its developers, and it drops Malicious code that executes in victims machine written in python.

There is two malicious domain identified, in which, One of the resources is disguised as a personal website another one is posed as the WhatsApp messenger official website.

Backdoor Infection Process

Initially, when users opening the malicious sites, an embedded code that deployed within the website detects the operating system whether its Windows platform or MacOS to uploads either the backdoor.

According to Dr, Web Research, If a visitor uses macOS, their device gets infected with Mac.BackDoor.Siggen.20, and BackDoor.Wirenet.517 is downloaded on Windows devices.

Later, Attackers using well-known Remote access Trojan to control the victim’s computer remotely and also perform various malicious operation including to hijack camera and microphone on the victim’s device.

Researchers identified that the RAT signed with a valid digital certificate and the attacker not using this attack for large scale operation.

“According to our information, the website spreading the backdoor under the cover of the WhatsApp messenger, was visited by about 300 visitors with unique IP addresses”. Dr, Web Said.

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