Many, if not all, "open source" IDM resetter RAR files found online are likely not truly open source. Open source implies the source code is public, verifiable, and editable, which is rarely true for tools designed to bypass licensing.
These RAR files are frequently repackaged with Trojans, keyloggers, or cryptocurrency miners [1, 2].
Disclaimer: Downloading cracked software or tools designed to bypass licensing is risky and may violate legal agreements. Download [opensource] IDM trial reset rar
For a safe, open-source download experience, it is highly recommended to use legitimate alternatives that do not require patching or cracking: A popular, open-source download manager. Free Download Manager (FDM): A robust, free alternative.
Using such tools violates IDM’s End User License Agreement (EULA). The Recommended Alternative Many, if not all, "open source" IDM resetter
If you are looking for secure, free download managers, I can: Compare vs. Free Download Manager Provide official download links to these open-source tools
IDM regularly updates to patch these reset methods. Using such tools violates IDM’s End User License
Downloading .rar or .exe files from untrusted sources often results in malware infections [1].