Tag: overstep

1 Attack Reports | 0 Vulnerabilities

Attack reports

Ongoing SonicWall Secure Mobile Access (SMA) Exploitation Campaign using the OVERSTEP Backdoor

A financially-motivated threat actor, UNC6148, is targeting fully patched end-of-life SonicWall SMA 100 series appliances. They are using stolen credentials and OTP seeds from previous intrusions to regain access. The actor has deployed a new persistent backdoor/user-mode rootkit called OVERSTEP, w…

credential theft

data exfiltration

Published: July 18, 2025

Linked vulnerabilities : CVE-2025-32819 (CVSS 8.8), CVE-2021-20039, CVE-2023-44221, CVE-2021-20035, CVE-2024-38475, CVE-2021-20038

Downloadable IOCs: 4

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