Meanwhile, researchers at SecurityScorecard say the "fileless" malware loader in the attack - Teardrop - actually dates back to 2017.

Kelly Jackson Higgins Executive Editor at Dark Reading

Source: DarkReading
Source Link: https://www.darkreading.com/operations/microsoft-releases-free-tool-for-hunting-solarwinds-malware/d/d-id/1340260?_mc=rss_x_drr_edt_aud_dr_x_x-rss-simple