The Four-Week Patch Gap Just Became an Attack Surface
Four different hacking groups, several of them tied to the Chinese government, all used the same exploit kit inside a week - and that's the part worth staring at. Proofpoint named the kit BlueMoon: a three-bug chain (two in Chromium's V8 JavaScript engine, one in the Windows kernel of older versions) that ends with a deliberately crude curl download of whatever malware the user picks. That final step is sloppy enough that security software has multiple chances to catch it - which is a tell that the attackers were rushing to use the exploit before the window closed. The groups were distinct in every way that matters - TA412, UNK_LateNight, UNK_DoubleCheck, UNK_QuietRacket - each with its own targets, its own malware, its own command-and-control, and lures like fake internship inquiries, procurement requests, and a Vietnamese vaccine appointment. TA412 even dropped a malicious browser extension dressed up as Google's Gemini assistant. What was not distinct was the kit itself...