An attacker breached Maromalix’s public-facing web application by exploiting CVE-2025-55182 (Next.js Deserialization RCE). They deployed a multi-stage implant dubbed EtherRAT, which utilizes a blockchain-based C2 mechanism via Ethereum smart contracts to dynamically resolve infrastructure. The attacker exfiltrated sensitive data, established multiple persistence mechanisms, and ultimately patched the vulnerability to lock out other actors.
A ELF64 ransomware binary uses XOR string obfuscation keyed on a CLI passphrase, contacts a DigitalOcean C2 to register and retrieve an AES-256-CBC key and IV, recursively encrypts target files in /share/ renaming them to .24bes, exfiltrates the originals via HTTP PUT, zeroes and removes the source files, and installs a systemd service for persistence.
Flask web application vulnerable to path traversal during file uploads. Exploited by uploading Python reverse shell to cron-executed directory → gained www-data shell → extracted MD5 hashes from SQLite database → cracked password for user fismathack → leveraged CVE-2024-48990 in needrestart 3.7 for privilege escalation to root.