Author Archives: SANS Internet Storm Center, InfoCON: green

This is the seventh update to the TeamPCP supply chain campaign threat intelligence report,&#;x26;#;xc2;&#;x26;#;xa0;“When the Security Scanner Became the Weapon”&#;x26;#;xc2;&#;x26;#;xa0;(v3.0, March 25, 2026).&#;x26;#;xc2;&#;x26;#;xa0;Update 006&#;x26;#;xc2;&#;x26;#;xa0;covered developments through April 3, including the CERT-EU European Commission breach disclosure, ShinyHunters&#;x26;#;39; confirmation of credential sharing, Sportradar breach details, and Mandiant&#;x26;#;39;s quantification of 1,000+ compromised SaaS environments. This update consolidates five days of intelligence from April 3 through April 8, 2026.

Continue reading TeamPCP Supply Chain Campaign: Update 007 – Cisco Source Code Stolen via Trivy-Linked Breach, Google GTIG Tracks TeamPCP as UNC6780, and CISA KEV Deadline Arrives with No Standalone Advisory, (Wed, Apr 8th)→

One question that often comes up when I talk about honeypots: Are attackers able to figure out if they are connected to a honeypot? The answer is pretty simple: Yes!

Continue reading More Honeypot Fingerprinting Scans, (Wed, Apr 8th)→

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License. Continue reading ISC Stormcast For Wednesday, April 8th, 2026 https://isc.sans.edu/podcastdetail/9884, (Wed, Apr 8th)→

Webshells remain a popular method for attackers to maintain persistence on a compromised web server. Many “arbitrary file write” and “remote code execution” vulnerabilities are used to drop small files on systems for later execution of additional payloads. The names of these files keep changing and are often chosen to “fit in” with other files. Webshells themselves are also often used by parasitic attacks to compromise a server. Sadly (?), attackers are not always selecting good passwords either. In some cases, webshells come with pre-set backdoor credentials, which may be overlooked by a less sophisticated attacker.

Continue reading A Little Bit Pivoting: What Web Shells are Attackers Looking for?, (Tue, Apr 7th)→

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License. Continue reading ISC Stormcast For Tuesday, April 7th, 2026 https://isc.sans.edu/podcastdetail/9882, (Tue, Apr 7th)→

In one of his recent diaries, Johannes discussed how open redirects are actively being sought out by threat actors[1], which made me wonder about how commonly these mechanisms are actually misused…

Continue reading How often are redirects used in phishing in 2026?, (Mon, Apr 6th)→

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License. Continue reading ISC Stormcast For Monday, April 6th, 2026 https://isc.sans.edu/podcastdetail/9880, (Mon, Apr 6th)→

This is the sixth update to the TeamPCP supply chain campaign threat intelligence report,&#;x26;#;xc2;&#;x26;#;xa0;“When the Security Scanner Became the Weapon”&#;x26;#;xc2;&#;x26;#;xa0;(v3.0, March 25, 2026).&#;x26;#;xc2;&#;x26;#;xa0;Update 005&#;x26;#;xc2;&#;x26;#;xa0;covered developments through April 1, including the first confirmed victim disclosure (Mercor AI), Wiz&#;x26;#;39;s post-compromise cloud enumeration findings, DPRK attribution of the axios compromise, and LiteLLM&#;x26;#;39;s release resumption after Mandiant&#;x26;#;39;s forensic audit. This update covers intelligence from April 1 through April 3, 2026.

Continue reading TeamPCP Supply Chain Campaign: Update 006 – CERT-EU Confirms European Commission Cloud Breach, Sportradar Details Emerge, and Mandiant Quantifies Campaign at 1,000+ SaaS Environments, (Fri, Apr 3rd)→

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License. Continue reading ISC Stormcast For Friday, April 3rd, 2026 https://isc.sans.edu/podcastdetail/9878, (Fri, Apr 3rd)→

From its GitHub repo: “Vite (French word for “quick”, pronounced /vi?t/, like “veet”) is a new breed of frontend build tooling that significantly improves the frontend development experience” [https://github.com/vitejs/vite].

Continue reading Attempts to Exploit Exposed “Vite” Installs (CVE-2025-30208), (Thu, Apr 2nd)→