Threats Tagged 'credential abuse'

A threat actor gained initial access to a network via RDP using compromised credentials, likely obtained through an infostealer, data breach, or initial access broker. They quickly moved laterally to a domain controller, created multiple impersonation accounts with high privileges, and installed AnyDesk for persistence. Over nine days, the actor conducted extensive network reconnaissance using SoftPerfect NetScan and NetExec, mapped virtualization infrastructure, and browsed file shares. They exfiltrated sensitive data from multiple shares using temp.sh. On the final day, the actor connected to backup servers, deleted backup jobs, and deployed Lynx ransomware across multiple servers. The intrusion lasted 178 hours and leveraged compromised domain admin credentials throughout.

MediumCampaignGermanyFranceUnited Kingdom+4#network reconnaissance#lynx ransomware#rdp

A large-scale attack infrastructure dubbed TruffleNet has been identified, built around the open-source tool TruffleHog. This infrastructure is used to systematically test compromised credentials and perform reconnaissance across AWS environments. The campaign involves over 800 unique hosts across 57 distinct Class C networks, characterized by consistent configurations and the use of Portainer. Alongside TruffleNet, adversaries are exploiting Amazon Simple Email Service (SES) to facilitate Business Email Compromise (BEC) campaigns. The attackers create email identities using compromised WordPress sites and conduct aggressive cloud reconnaissance. This activity highlights the evolving tactics of threat actors in exploiting cloud infrastructure at scale, combining credential theft, reconnaissance automation, and SES abuse to conduct high-volume fraud with minimal detection.

MediumMalwareGermanyUnited KingdomFrance+7#identity compromise#trufflehog#credential abuse