Sunday, October 18, 2026

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.

You can follow us on Linkedin, Twitter, Facebook for daily Cybersecurity updates also you can take the Best Cybersecurity courses online to keep your self-updated.

Also Read:

Advanced Retefe Banking Malware Attack on Windows and Mac Users via Weaponized Word Documents

Miner Malware Uses Multiple Propagation Methods to Infect Windows Machines and to Drop Monero Miner

Balaji
Balaji
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

Hot this week

How To Access Dark Web Anonymously and know its Secretive and Mysterious Activities

What is Deep Web The deep web, invisible web, or...

How to Build and Run a Security Operations Center (SOC Guide) – 2023

Today’s Cyber security operations center (CSOC) should have everything...

Russian Hackers Bypass EDR to Deliver a Weaponized TeamViewer Component

TeamViewer's popularity and remote access capabilities make it an...

Web Server Penetration Testing Checklist – 2026

Web server pentesting is performed under three significant categories: identity,...

ATM Penetration Testing – Advanced Testing Methods to Find The Vulnerabilities

ATM Penetration testing, Hackers have found different approaches to...

Hackers Use ConnectWise SkyKick Credentials to Access Microsoft 365, Halting Cloud Backups

Attackers abused compromised ConnectWise Cloud Backup credentials to access...

Anthropic’s Claude AI Uncovers Origins of NSA-Provided Cryptographic Keys After 25 Years

Anthropic says an internal Claude research model reconstructed how...

OpenBSD Kernel Flaw Dating Back 37 Years Enables Local Privilege Escalation to Root

A newly disclosed OpenBSD kernel exploitation chain combines a...

GhostAction Hackers Hide Credential-Stealing Malware in Fake Font Files Across 94 GitHub Repositories

GhostAction attackers have expanded their GitHub credential theft campaign...

SideCopy Hackers Target Indian Organizations With ReverseRAT Malware to Steal Data

Indian authorities have warned that SideCopy hackers are targeting...

New GhostBat Android Malware Targets 60 Banking and UPI Apps to Steal PINs

A new GhostBat RAT variant targets 60 Android financial...

New ROMULUS Malware Platform Uses Six Servers to Deliver Multiple Malicious Payloads

ROMULUS, a shared ClickFix delivery platform operating across six...

Related Articles

Recent News