Utopia Tech
Malicious Sicoob NuGet Steals Banking Credentials as npm Packages Target Cloud Secrets
SecurityAI-assisted1 min read

Malicious Sicoob NuGet Steals Banking Credentials as npm Packages Target Cloud Secrets

Security researchers have identified a malicious NuGet package impersonating a legitimate SDK for Sicoob, a major Brazilian financial institution, designed to steal client credentials and PFX certificates. Versions 2.0.0 through 2.0.4 of the fraudulent 'Sicoob.Sdk' package contain data exfiltration capabilities targeting sensitive authentication materials. This discovery highlights the growing thr

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Utopia Tech

May 29, 2026 · 1 min read

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Cybersecurity researchers have discovered a malicious NuGet package that masquerades as a C# software development kit for Sicoob, one of Brazil's largest cooperative financial systems, to siphon client IDs and PFX certificates. According to Socket, versions 2.0.0 through 2.0.4 of "Sicoob.Sdk" contain functionality to exfiltrate sensitive information, including PFX certificates that are used to

Originally published at thehackernews.com

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