The file is highly suspicious. There is no "official" mod by this name on reputable hosting sites. It is almost certainly a trap designed to steal accounts from players looking for an unfair advantage.
Legitimate Fabric mods usually have a clear author, a link to a GitHub source code repository, and a history of updates. file name dupetriggermodfabric1201jar
Suggests a "dupe" (duplication) glitch trigger. mod: Identifies it as a Minecraft modification. fabric: Specifies the mod loader (Fabric). 1201: Refers to Minecraft version 1.20.1. The file is highly suspicious
Never download a .jar file sent to you by a stranger in a DM or found in a random YouTube description. Legitimate Fabric mods usually have a clear author,
Duplication exploits are highly sought after in "Anarchy" servers (like 2b2t) or competitive factions. Malicious actors take advantage of this demand by creating fake mods.
Understanding "dupetriggermodfabric1201jar": What It Is and Why You Should Be Careful
If you want to dupe items, stick to well-documented vanilla bugs or open-source utility mods like or Aristois , which have thousands of users and transparent development—but even then, always proceed with caution.