At the time of writing, the official MAS 2.7 script achieves a 0/60 detection rate on VirusTotal. Any detections are typically "hacktool" warnings (detection of potential risk tools) not malware.
(This downloads and executes the latest MAS script directly from the official source into memory.)
A: Yes. MAS will convert Office 365 (which requires subscription) to a permanently activated Office 2021/2024-like state using Ohook.
Most scripts are plain text, making them less likely to be flagged as "viruses" (though some heuristics might still trigger).
But two weeks later, his antivirus flagged a suspicious background process: “MAS_Service.exe” — something he never installed. His laptop began slowing down. Strange pop-ups appeared in Russian. Then, one morning, his files were encrypted with a ransom note: “Pay 0.5 BTC to restore your data.”
: Temporarily disable Real-time protection or add the PowerShell execution as an exclusion. MAS is a false positive. Alternatively, download the offline version and run it after allowing it in SmartScreen.
Even with a polished tool, users may encounter errors. Here are solutions to frequent problems:
MAS 2.7 provides clearer error messages. If activation fails, the script now suggests specific troubleshooting steps (e.g., disabling third-party antivirus or checking system time).
A: No. Only disable it temporarily during script execution, then re-enable.
: Used for permanent activation of Windows, ESU (Extended Security Updates), and Office. Microsoft Activation Scripts Microsoft Activation Scripts | MAS