Vect

Vect, also known as Vect Ransomware and Vect Ransomware Group, is a financially motivated ransomware-as-a-service operation that emerged in late December 2025 and began claiming victims in January 2026. It recruits affiliates through Russian-language cybercrime forums and offers ransomware deployment and extortion infrastructure. Its victims span information technology, manufacturing, healthcare, education, energy, and financial services, with targeting documented in the United States, India, Brazil, and South Africa. Russian-language recruitment does not establish its country of origin. In late March 2026, Vect announced an operational partnership with TeamPCP, combining TeamPCP’s software supply-chain credential harvesting and data theft with Vect’s ransomware infrastructure. Vect uses compromised credentials to access downstream organizations, while TeamPCP supplies access derived from poisoned developer and security tooling, including the Trivy and LiteLLM campaigns. At least one verified Vect ransomware deployment used TeamPCP-sourced credentials. Vect also partnered with BreachForums to distribute affiliate access. Its double-extortion model combines file encryption with threatened publication of stolen data through a dedicated leak site. Vect’s analyzed Windows ransomware enumerates network resources, accepts Active Directory credentials, and supports lateral movement through WinRM, WMI, DCOM, scheduled tasks, services, and Group Policy. It disables security protections, terminates security, backup, and database processes, deletes shadow copies, and modifies Safe Mode settings to maintain execution. The locker uses ChaCha20-based intermittent encryption. Corroborated implementation flaws in its handling of encryption nonces can leave files larger than 128 KB irrecoverably damaged, even when the correct key is available. Consequently, its deployment can cause permanent data loss rather than reliably reversible encryption.