Urgent Phishing Campaign Targets Corporate Tax Personnel in South Korea

A phishing campaign targeting corporate personnel in South Korea has been uncovered, with emails impersonating tax authorities demanding urgent document submissions. The emails, titled 'Tax Violation and Sanction Notice,' create a sense of urgency by threatening legal sanctions if documents are not submitted within 72 hours. Upon clicking a link in the email, users unknowingly download a malware-laden file from a legitimate file-sharing service, LimeWire. This file installs a remote-control program, 'RdViewer,' developed in China, allowing attackers to access sensitive corporate data. The malware's use of a valid code-signing certificate enables it to bypass security measures, making detection difficult. East Security's Security Response Center (ESRC) has issued warnings about the campaign, emphasizing the psychological manipulation involved. The attack highlights the risks associated with urgent and sensitive topics in phishing attempts.

Key Points: • Phishing emails impersonate tax authorities, demanding urgent document submissions. • Malware installed via a link to a legitimate file-sharing service, LimeWire. • The remote-control program allows attackers to access sensitive corporate data.