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Think twice before downloading and opening file attachments. Global leader in cloud security, Trend Micro Incorporated, monitored a new campaign that specifically targeted government and administrative agencies in Taiwan. The campaign, named PLEAD", used spear-phishing emails that contain Right to Left Override" (RTLO)-disguised attachments and exploited a vulnerability in Windows to ensnare targets, luring unsuspecting email recipients to open and download malicious file attachments, leading to the execution of a backdoor which gathers system and network information from infected computers.
The RTLO technique made use of the RTLO Unicode character that was created to support languages written from right to left, which enabled computers to exchange information regardless...