The Federal Bureau of Investigation (FBI) is releasing this Private Industry Notification to alert
private sector partners to a novel version of the SHARPEXT malware, attributed to the North
Korean advanced persistent threat (APT) Kimsuky. As of September 2022, the novel SHARPEXT
malware was capable of infecting devices through web browser extensions on Firefox, as well
as on previously-reported browsers Microsoft Edge, Google Chrome, and Naver Whale.
