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E4del and PINHOLE RATs Turn FTP Banners Into Dead Drops for Malware Commands

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E4del and PINHOLE RATs Turn FTP Banners Into Dead Drops for Malware Commands

Researchers identified a campaign using File Transfer Protocol (FTP) banners as dead drop resolvers to distribute two new remote access trojans (RATs), named E4del and PINHOLE. The method leverages legitimate services to conceal command-and-control infrastructure within normal network traffic.

Why it matters: Network defenders should inspect FTP banner traffic for signs of covert command-and-control activity to detect potential E4del or PINHOLE RAT infections.

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