Researchers at security firm Proofpoint published their analysis of an open-source variant of “infostealer” malware known as Stealerium that the company has seen used in multiple cybercriminal campaigns since May of this year.
The malware, like all infostealers, is designed to infect a target's computer and automatically send a hacker a wide variety of stolen sensitive data, including banking information, usernames and passwords, and keys to victims' crypto wallets. Stealerium, however, adds another, more humiliating form of espionage: It also monitors the victim's browser for web addresses that include certain NSFW keywords, screenshots browser tabs that include those words, photographs the victim via their webcam while they're watching those porn pages, and sends all the images to a hacker—who can then blackmail the victim with the threat of releasing them. more