Threats Tagged 'dynamic dns'

A sophisticated phishing campaign targeting Indian businesses and taxpayers leverages GST-related themes to distribute Remcos RAT through a multi-stage .NET framework. Threat actors impersonate Government of India GST communications using fraudulent refund notifications with convincing ARN references. The attack chain begins with a malicious RAR archive containing a .NET executable that employs bitmap-based payload concealment techniques. Through successive stages including Windows Health Optimizer Plus.dll and perfgurd.dll, the malware deploys Remcos RAT entirely in memory, establishing persistence via PowerShell scripts and registry modifications. Command-and-control infrastructure utilizes dynamic DNS services with randomized subdomains under aofmokighoig.hath.network. The deployed Remcos RAT enables remote command execution, keylogging, credential harvesting, file manipulation, and comprehensive system reconnaissance capabilities, representing a financially motivated cybercrime operation specifically t...

MediumMalwareBritish Indian Ocean TerritoryIndia#bitmap steganography#fileless execution#multi-stage loader

A long-running typosquatting campaign impersonated the widely used shopspring/decimal Go library by publishing github.com/shopsprint/decimal, differing by a single character. Active since November 2017, the package remained benign through seven releases until being weaponized in August 2023 with version v1.3.3. This version introduced a malicious init() function that executes automatically on import, establishing a DNS TXT record-based command and control channel to dnslog-cdn-images.freemyip.com. The backdoor polls every five minutes and executes arbitrary commands returned via TXT records. Although the GitHub repository and owner account have been deleted, the malicious module remains permanently cached and accessible through Go's module proxy system, continuing to pose a supply chain risk to developers who mistype the package name.