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Fast Flux: A National Security Threat
Executive summary Many networks have a gap in their defenses for detecting and blocking a malicious technique known as “fast flux.” This technique poses a significant threat to national security, enabling malicious cyber actors to consistently evade detection. Malicious cyber actors, including cybercriminals and nation-state actors, use fast flux to obfuscate the locations of malicious…
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Vulnerability Summary for the Week of March 24, 2025
High Vulnerabilities PrimaryVendor — Product Description Published CVSS Score Source Info n/a — n/a Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in our IPC code. A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape. The original…
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CISA Releases Malware Analysis Report on RESURGE Malware Associated with Ivanti Connect Secure
CISA has published a Malware Analysis Report (MAR) with analysis and associated detection signatures on a new malware variant CISA has identified as RESURGE. RESURGE contains capabilities of the SPAWNCHIMERA[1] malware variant, including surviving reboots; however, RESURGE contains distinctive commands that alter its behavior. These commands: Create a web shell, manipulate integrity checks, and modify…
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From 4chan Trolling to Hacktivism
2003: Origins on 4chan Before the online collective of Hacktivists came to be known as Anonymous, their beginnings could be traced to a group of internet trolls on the once popular imageboard website, 4chan. It was here that users would conglomerate and share images alongside the infamous “Green Text”, comments saying any number of vicious…
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Click Here! Malvertising and its Effective Manipulation
“WARNING! Your iPhone is infected with virus and immediate urgent action is required!” – this was the pop-up that displayed itself on the face of Andrew Reed’s phone. A pop-up that was invoked because of an unintentional click to a website link that was displayed at the top of Google’s search results for “Cookie Recipes”.…
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Vulnerability Summary for the Week of March 17, 2025
High Vulnerabilities PrimaryVendor — Product Description Published CVSS Score Source Info Synology–Unified Controller (DSMUC) Off-by-one error vulnerability in the transmission component in Synology Replication Service before 1.0.12-0066, 1.2.2-0353 and 1.3.0-0423 and Synology Unified Controller (DSMUC) before 3.1.4-23079 allows remote attackers to execute arbitrary code, potentially leading to a broader impact across the system via unspecified…
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Supply Chain Compromise of Third-Party GitHub Action, CVE-2025-30066
A popular third-party GitHub Action, tj-actions/changed-files (tracked as CVE-2025-30066), was compromised. This GitHub Action is designed to detect which files have changed in a pull request or commit. The supply chain compromise allows for information disclosure of secrets including, but not limited to, valid access keys, GitHub Personal Access Tokens (PATs), npm tokens, and private…
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Vulnerability Summary for the Week of March 10, 2025
High Vulnerabilities PrimaryVendor — Product Description Published CVSS Score Source Info 1E–1E Client Improper link resolution before file access in the Nomad module of the 1E Client, in versions prior to 25.3, enables an attacker with local unprivileged access on a Windows system to delete arbitrary files on the device by exploiting symbolic links. 2025-03-12…
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CISA Releases Thirteen Industrial Control Systems Advisories
CISA released thirteen Industrial Control Systems (ICS) advisories on March 13, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-072-01 Siemens Teamcenter Visualization and Tecnomatrix Plant Simulation ICSA-25-072-02 Siemens SINEMA Remote Connect Server ICSA-25-072-03 Siemens SIMATIC S7-1500 TM MFP ICSA-25-072-04 Siemens SiPass integrated AC5102/ACC-G2 and ACC-AP ICSA-25-072-05 Siemens…
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#StopRansomware: Medusa Ransomware
Summary Note: This joint Cybersecurity Advisory is part of an ongoing #StopRansomware effort to publish advisories for network defenders detailing various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations protect against ransomware. Visit stopransomware.gov to see…