Rescoms rides waves of AceCryptor spam

ESET observed a large increase in AceCryptor-packed malware in H2 2023 driven primarily by spam campaigns distributing the Rescoms RAT across multiple European countries (notably Poland), leveraging spearphishing attachments and compromised email accounts to harvest browser and email credentials; the report details campaign timelines, IoCs, affected countries, and MITRE ATT&CK mappings.