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4 stories in the last 7d

Hacked HBO Max Reddit Account Used for Malware Delivery via ClickFix Attack

Attackers hijacked HBO Max's verified Reddit account to push 108 malicious ads delivering AMOS and Amatera infostealers via ClickFix prompts.

Threat actors compromised the official u/hbomax Reddit account and ran 108 malicious ads over 48 hours in a campaign tracked as PasteSwitch, directing users to a fake hbomaxx[.]us site. ClickFix prompts tricked macOS users into running curl | zsh payloads (MacSync, AMOS Helper, fake wallets) and Windows users into executing MSHTA/PowerShell delivering Amatera Stealer. AnimateClipper and ZigClipper clipboard hijackers swapped cryptocurrency addresses using a blockchain-hosted C&C active since early 2026. Reddit suspended the ads after notification.

SecurityWeekupdated · 2d agofirst · 2d agoMalware in the wild 7 sources

FamousSparrow Deploys New SparroWocky Backdoor Against Latin American Governments

China-aligned APT FamousSparrow deployed a new modular backdoor, SparroWocky, against government entities across eight Latin American countries since August 2025, ESET reports.

ESET reports that China-aligned threat actor FamousSparrow replaced its SparrowDoor implant with SparroWocky, a distinct modular C++ backdoor active against governments in Argentina, Ecuador, Guatemala, Honduras, Panama, Peru, Puerto Rico, and Venezuela. Around 90% of the group's targets from mid-2025 into 2026 were in Latin America, which ESET links to regional competition over US influence. The backdoor arrives via a three-component DLL side-loading chain, persists through a Windows service (ProcAuditManager) or Run keys (SnapCart), captures screenshots, and exfiltrates RC4-encrypted data over TLS C2 on ports 443 and 8080. It supports in-memory Beacon Object File execution, API hashing, and SilentMoonwalk-style call-stack spoofing; IOCs for three C2 servers were released.

GBHackersupdated · 1h agofirst · 1h agoThreat actor in the wild 3 sourcesCVE-2021-26855

Revolut Data Breach Via Fake Government Requests – What We Know So Far

Revolut confirmed attackers extracted customer KYC records by sending fraudulent data requests from a spoofed or compromised government agency email domain.

Revolut confirmed a data breach in which an unauthorized party obtained sensitive customer records by submitting fraudulent information requests from an email account on a legitimate government agency domain with valid SPF/DKIM/DMARC authentication. Disclosed data could include full names, dates of birth, passport or driving-license copies, onboarding facial images, IBANs, account statements, withdrawal records, and complete transaction histories including Bitcoin activity. Crypto investigator ZachXBT assessed the operation targeted high-net-worth users, while a threat actor using the name 'IAmNotAVillain' claimed Italian law-enforcement departments were compromised over six months with 147 GB of material, claims that remain unverified. Revolut says only a limited number of customers were affected, blocked the email address, and notified regulators and affected customers, stating its systems and funds were not compromised.

Cyber Security News · 2d agoData breach

Detect and disrupt AI-themed attacks with Microsoft Defender

Microsoft Threat Intelligence reports criminal campaigns impersonating ChatGPT, Copilot, Claude, and DeepSeek in phishing, AiTM, and malvertising attacks reaching 100,000 emails daily.

Microsoft Threat Intelligence observed a growing set of campaigns that abuse trust in popular AI brands: a ChatGPT-themed phishing campaign sent up to 100,000 emails in one day to steal payment card data, and a Claude-themed campaign used adversary-in-the-middle techniques to harvest credentials and access tokens. Other campaigns included malvertising for a fake AI Windows plugin delivering the Vidar stealer and fraudulent DeepSeek installers distributed via GitHub. Initial access broker Storm-3075 used AI-themed malvertising to distribute payloads for multiple downstream actors, and Microsoft notes the AI services themselves were not compromised. Microsoft also details Defender protections such as Safe Links, Safe Attachments, and attack disruption against these multi-stage lures.

Microsoft Security Blog · 6d agoPhishing & fraud in the wild1