Trojan that hides inside images infects healthcare organizations

A computer Trojan that hides its malicious code inside PNG image files counts healthcare organizations in the U.S. among its primary targets.

The Stegoloader Trojan uses digital steganography techniques to sneak past computer and network defenses. It originally appeared in 2012, but has seen a resurgence over the past several months.

According to a recent report from Dell SecureWorks, the Trojan is designed to steal files, information and passwords from infected systems, but has additional modules that extend its functionality.

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