Vidar Stealer Unmasked: Code Signing Abuse, Go Loaders and File Inflation
A cybercrime campaign combined a loader-as-a-service framework and DLL sideloading via a Go-compiled fake MpClient.dll, a novel evasion layer combination.
Unit 42
20 articles
How We Added WebAuthn to a Browser-Based RDP Client
A look inside the reverse-engineering journey of building the first RDP client outside of Windows to support WebAuthn redirection. The post How We Added WebA...
Phantom Squatting: AI-Hallucinated Domains as a Software Supply Chain Vector
Attackers can exploit LLM domain hallucinations through phantom squatting to target supply chains. Read the analysis to learn more.
CL-STA-1062 Targets Southeast Asian Governments and Critical Infrastructure
Government entities and critical infrastructure were targeted for espionage in SE Asia by attackers using a hybrid toolkit, including custom TinyRCT backdoor...
OpenClaw’s Skill Marketplace and the Emerging AI Supply Chain Threat
Unit 42's analysis of ClawHub revealed evasive malicious skills bypassing automated scanners to deploy infostealers and execute agentic financial fraud. The ...
The Global Namespace Risk: Universal Bucket Hijacking Technique for Cloud Data Exfiltration
Unit 42 research details how attackers could exploit global name uniqueness in bucket hijacking to redirect cloud data streams across major CSPs. The post Th...
Threat Brief: Mitigating Large-Scale Credential Attacks
We provide guidance for preparing for mitigating large-scale credential attacks, focusing on recent campaigns targeting security vendors' devices. The post T...
Pickle in the Middle – Hijacking Vertex AI Model Uploads for Cross-Tenant RCE
Unit 42 discovered a Vertex AI Python SDK vulnerability that allows remote code execution via bucket squatting. Read the article for more.
Inside the Modern SOC: The 72-Minute Race
Attackers can move from access to exfiltration in 72 minutes. Learn how modern SOC teams close the speed gap with Unit 42's AI-driven automation, threat hunt...
Tracing Digital Intent: New MacOS Tahoe 26 Artifact Discovered
Unit 42 has discovered a new macOS Tahoe 26 forensic artifact that tracks user menu selections across the operating system. Learn more here.
Trust No Skill: Integrity Verification for AI Agent Supply Chains
Protect enterprise AI agents from supply chain risks by auditing third-party skills for hidden vulnerabilities and multi-stage attack chains. The post Trust ...
Blinding the Watchmen: Abusing Cloud Logging Services for Defense Evasion and Visibility
Unit 42 research examines attack scenarios targeting cloud logging services. Learn how to defend against log manipulation and defense evasion.
When “Hi, This Is IT” Comes Through Microsoft Teams
Attackers are increasingly targeting collaboration platforms like Microsoft Teams. Learn the risks and key steps to strengthen your organization's security.
Threat Brief: Active Exploitation of PAN-OS CVE-2026-0257
We include indicators of activity and mitigations for PAN-OS vulnerability CVE-2026-0257. The post Threat Brief: Active Exploitation of PAN-OS CVE-2026-0257 ...
Operation FlutterBridge: macOS Malvertising Campaign Spreads New FlutterShell Backdoor
Operation FlutterBridge is a malvertising campaign targeting macOS users. It distributed the new backdoor FlutterShell, built using the Flutter framework.
2026 World Cup: Discussing The World’s Biggest Game’s Attack Surface
The 2026 World Cup presents major cyber risks from ransomware groups, state-aligned actors, and other groups targeting critical infrastructure. Learn more here.
Out of the Crypt: The Evolving Cyber Extortion Economy
Unit 42 explores trends in data theft and extortion, outlining key strategies for organizations as frontier AI models advance. The post Out of the Crypt: The...
Tracking Iranian APT Screening Serpens’ 2026 Espionage Campaigns
Unit 42 details Screening Serpens' use of AppDomainManager hijacking and new RAT variants to target tech and defense sectors in recent campaigns. The post Tr...
Paved With Intent: ROADtools and Nation-State Tactics in the Cloud
Open-source framework ROADtools is being misused by threat actors for cloud intrusions. Learn how to identify its malicious use.
Tracking TamperedChef Clusters via Certificate and Code Reuse
Unit 42 analyzes TamperedChef malware clusters that use trojanized productivity apps and malvertising to deliver stealthy payloads to targets. The post Track...