New FileFix Delivery Method Used to Distribute Interlock RAT
Since at least February 2025, Arctic Wolf has observed Interlock Remote Access Trojan (RAT) being deployed via social engineering techniques. Recently, The DFIR Report published a technical analysis of the Interlock RAT being delivered via a social engineering technique dubbed “FileFix.” The name FileFix is derived from its similarity to the previously documented ClickFix technique using fake CAPTCHA pages.