Threats Tagged 't1012'

A sophisticated malware campaign is targeting Indian taxpayers during filing season by impersonating the Income Tax Department. Attackers distribute fake penalty notices via WhatsApp from unknown or compromised accounts, using forged Office Memorandums citing legitimate tax law sections and creating 72-hour deadlines to induce panic. The campaign delivers ITD.zip files containing malicious Android APKs and Windows executables that harvest OTPs, banking credentials, and enable remote access. The infrastructure relies on disposable domains using cheap TLDs and Alibaba Cloud storage for payload delivery. This activity is part of a broader ecosystem including refund SMS fraud, cloned e-Filing portals, and fake e-PAN emails. The operation demonstrates resource and planning through bilingual content, payload rotation to evade detection, and abuse of legitimate code-signing certificates.

MediumCampaignBritish Indian Ocean TerritoryIndia#phishing#india#tax season

A TrickBot variant has been identified that uses DNS tunneling for command-and-control communications instead of traditional HTTP protocols. The malware maintains persistence through Windows Task Scheduler, creating disguised tasks that execute at startup and repeat every five minutes. Configuration data is stored in NTFS Alternate Data Streams to evade detection. The malware employs multiple obfuscation techniques including encrypted strings, runtime API resolution via hash-based lookups, and dynamically calculated constants. Its modular architecture supports twelve different control commands enabling capabilities such as module downloads, process injection through hollowing and doppelgänging techniques, PowerShell execution, and raw machine code execution. The variant transfers data through specially crafted DNS queries to public DNS servers, encoding command data in malformed domain names and receiving responses embedded within multiple IPv4 addresses, achieving transfer speeds of approximately 30.7 KB/s.

An active Lampion malware campaign has been identified targeting Portuguese users through phishing emails that impersonate financial and administrative communications. Lampion, a Brazilian banking malware derived from the ChePro lineage, delivers initial payloads via ZIP archives containing heavily obfuscated HTML files designed to evade detection. The HTML stage retrieves additional scripts from attacker-controlled infrastructure, initiating a multistage VBS infection chain. Each stage employs extensive obfuscation techniques including junk code, encrypted strings, and dynamically generated scripts that inflate file sizes while concealing core functionality. The infection chain is deliberately fragmented across multiple independent execution stages, complicating behavioral analysis. Telemetry shows 94.6% of detections concentrated in Portugal, confirming this is a highly targeted threat focused on Portuguese-speaking victims.

MediumMalwarePortugal#phishing campaign#banking trojan#vbs infection chain

Since late March 2026, a large-scale phishing campaign has been deploying malware including Agent Tesla, Remcos, XWorm, and Best Private LOGGER through fileless techniques and low-detection Lua-based loaders. Attackers impersonate well-known companies using business cooperation lures to distribute malicious archives containing obfuscated JavaScript files. These scripts deploy either AutoIt or LuaJIT interpreters alongside disguised scripts masquerading as TrueType Font (.ttf) files. The Lua loaders employ sophisticated anti-analysis techniques including custom ROT ciphers, decoy memory allocation, and Donut shellcode generation for reflective in-memory payload execution. The campaign evolved from simpler implementations in October 2025 to highly complex versions by June 2026, incorporating API unhooking and advanced debugging countermeasures. Victims are ultimately infected with Remote Access Trojans and infostealers that enable full system control and extensive data exfiltration.

In October 2025, Microsoft Threat Intelligence discovered GigaWiper, a sophisticated Golang-based backdoor that combines command-and-control capabilities with multiple destructive payloads. This versatile implant consolidates functionality from at least three separate malware families: a standalone wiper operating at physical disk level, a destructive component derived from Crucio ransomware that encrypts files with randomly generated unsaved keys, and a reimplemented version of FlockWiper with enhanced multi-pass secure wiping. The backdoor provides 20 different commands enabling threat actors to maintain control, execute operations, collect system information, and trigger destructive actions on demand. GigaWiper establishes persistence through scheduled tasks, communicates via RabbitMQ and Redis servers, and can perform disk wiping, fake ransomware encryption, screen recording, VNC-like remote control, and system-level sabotage including BSOD triggers and event log clearing.