AhnLab ASEC analyzed Magniber ransomware’s rapid evolution across May–September 2022 as the operators changed file formats, execution flows, injection behavior, and UAC-bypass techniques to evade detection. Samples were distributed as MSI, CPL, JSE, JS, and WSF files, with September alone showing repeated format changes from CPL to JSE, JS, WSF, and back to MSI. Earlier MSI samples used msiexec.exe and regsvr32.exe paths to encrypt files and disable the Windows 10 recovery environment through fodhelper.exe registry abuse, while later samples injected ransomware into running processes and used custom ProgID registry keys. The report also notes changes in recovery-environment deactivation from regsvr32 to wscript.exe and describes typosquatting distribution that mainly targeted Chrome and Edge users; the source does not attribute the activity to Lazarus or another DPRK actor.