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#Initial Access

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Identity Attacks & MFA Bypass: The New Ransomware Entry Point
HIGH
Identity & Access

Identity Attacks & MFA Bypass: The New Ransomware Entry Point

Identity-based attacks, particularly email phishing, are now the leading cause of ransomware infections.

Runtime Rebel Intel
4 min read · Jul 15, 2026
HIGH
Threat Intel

EtherRAT Malware via Microsoft Teams IT Support Impersonation

Threat actors leverage fake IT support calls on Microsoft Teams to deploy EtherRAT malware, gaining initial access to corporate networks.

Runtime Rebel Intel
5 min read · Jul 6, 2026
ClickFix Social Engineering: How to Detect Fake Browser Update Attacks
HIGH
Threat Intel

ClickFix Social Engineering: How to Detect Fake Browser Update Attacks

ClickFix has become the dominant malware delivery method. Learn how attackers use fake browser error overlays to trick users into executing malicious PowerShell.

Runtime Rebel Intel
3 min read · Jul 2, 2026
Adaptive Phishing: How Attackers Fingerprint Devices via User-Agents
HIGH
Threat Intel

Adaptive Phishing: How Attackers Fingerprint Devices via User-Agents

Threat actors are using real-time device fingerprinting to deliver OS-specific phishing payloads, increasing the success rates of social engineering attacks.

Runtime Rebel Intel
4 min read · Jul 2, 2026
HIGH
Threat Intel

Outdated REDCap Servers Targeted by China-linked UNC6508

A majority of internet-accessible REDCap servers remain unpatched, making them prime targets for initial access and backdoor deployment by China-linked UNC6508.

Runtime Rebel Intel
5 min read · Jun 18, 2026
Onboarding Password Risk: Securing First-Day Account Access
MEDIUM
Identity & Access

Onboarding Password Risk: Securing First-Day Account Access

Temporary onboarding passwords, often sent insecurely and reused, pose significant risk. Learn how to secure initial employee access and mitigate threats.

Runtime Rebel Intel
4 min read · Jun 15, 2026

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HIGH
Threat Intel

FBI Disrupts First VPN Service Used by Ransomware Groups

The FBI and international partners dismantled First VPN, a specialized service used by dozens of ransomware groups for reconnaissance and intrusions.

Runtime Rebel Intel
4 min read · May 22, 2026
MEDIUM
Threat Intel

Canadian Man Arrested for Kimwolf Botnet Operations

Jacob Butler faces US extradition for operating the Kimwolf botnet. Analysis of the arrest, botnet infrastructure, and its role in the initial access market.

Runtime Rebel Intel
4 min read · May 22, 2026
MEDIUM
Threat Intel

KongTuke Exploits Microsoft Teams for Rapid Corporate Breaches

Initial access broker KongTuke leverages Microsoft Teams to deploy DarkGate malware, achieving network persistence in under five minutes via social engineering.

Runtime Rebel Intel
3 min read · May 14, 2026
Neutralizing Patient Zero: Strategies to Prevent Stealth Breaches
HIGH
Threat Intel

Neutralizing Patient Zero: Strategies to Prevent Stealth Breaches

Analyze how AI-driven social engineering creates a Patient Zero scenario and explore technical strategies to contain stealth breaches before total shutdown.

Runtime Rebel Intel
4 min read · May 7, 2026
MEDIUM
Malware

Malicious PDF Files: Analyzing AcroForm JavaScript for Initial Access

Security analysts have identified malicious PDF files utilizing AcroForm dictionaries to execute JavaScript and fetch remote payloads from external servers.

Runtime Rebel Intel
4 min read · May 4, 2026
Defending Against Identity-Based Attacks and Stolen Credentials
HIGH
Identity & Access

Defending Against Identity-Based Attacks and Stolen Credentials

Identity-based attacks use stolen credentials to bypass security. Learn why these attacks are the primary entry point and how to mitigate the risk.

Runtime Rebel Intel
3 min read · Apr 21, 2026
MEDIUM
Malware

PDF JavaScript Exploitation: Analysis of PowerShell Delivery

Technical analysis of malicious PDF documents using embedded JavaScript and /OpenAction triggers to execute PowerShell for initial access and C2 establishment.

Runtime Rebel Intel
4 min read · Apr 17, 2026
ClickFix Social Engineering Clusters Target Windows and macOS Systems
MEDIUM
Threat Intel

ClickFix Social Engineering Clusters Target Windows and macOS Systems

Insikt Group identifies five ClickFix clusters using obfuscated commands to exploit native system tools via fake browser error overlays on Windows and macOS.

Runtime Rebel Intel
4 min read · Mar 25, 2026
U.S. Sentences Yanluowang Ransomware Facilitator Aleksei Volkov
HIGH
Threat Intel

U.S. Sentences Yanluowang Ransomware Facilitator Aleksei Volkov

Russian national Aleksei Volkov sentenced to 81 months for facilitating Yanluowang ransomware attacks, causing $9M in damages to U.S. organizations.

Runtime Rebel Intel
3 min read · Mar 24, 2026