Threats Tagged 'rust-based'

C2Looper is a Rust-based backdoor malware identified in mid-2026, associated with ransomware threat actors. It provides remote shell execution, reconnaissance, and payload deployment capabilities. Initial versions communicate via plaintext HTTP, while later versions use GitHub repositories for command-and-control, storing commands and exfiltrated data in JSON files. Version 2 adds features such as drive enumeration, shellcode injection, and file listing. Delivery is assessed with low to medium confidence to occur through multi-stage ClickFix infection chains. The malware is actively developed and likely used by initial access brokers to facilitate ransomware and data theft operations.

PamStealer is a two-stage macOS infostealer distributed as a compiled AppleScript impersonating Maccy, a legitimate clipboard manager, hosted on a fake domain. The first stage uses JavaScript for Automation with Objective-C APIs to download payloads while avoiding shell commands. The second stage is a Rust-based Mach-O binary that validates stolen credentials through PAM before harvesting, reads browser databases directly using bundled SQLite, captures clipboard contents repeatedly via pbpaste, and exfiltrates encrypted data using ChaCha20-Poly1305. It establishes persistence through both modern and legacy login item APIs, masquerades as Finder or System Settings, and tricks victims into granting Full Disk Access through counterfeit alerts. The stealer contacts Ethereum RPC endpoints and employs region-based exclusions targeting Apple silicon systems while avoiding Commonwealth of Independent States countries.