How Malware Filled the Xavier ULP With 281,639 Stolen Logins

It started, like most of these leaks do, with malware quietly running on thousands of separate computers. By the time it was uploaded to Telegram on 24-Mar-2026, Xavier_Ulp - 489900 Xavier_Group uploaded by a Telegram User had grown into a combolist of 281,639 stolen logins, one of the larger files in this ongoing wave of leaks.

Why This Is Dangerous

A file this size isn't the work of one hacked website, it's the result of malware infecting alot of individual devices over time and slowly funneling their saved credentials into one place. Each entry pairs an email, a plaintext password, and the URL it unlocks, giving attackers a similiar setup to walking down a row of unlocked doors.

What Was Exposed

• Email Addresses
• Plaintext Password
• URLs
• 281,639 total records exposed

Why This Matters

With over a quarter million records in one file, the odds that your information is somewhere inside are higher than most people realize. It's neccessary to treat a leak this large as a real personal risk rather than an abstract headline, especially since the passwords were never encrypted in the first place.

How Stealer Logs Work

This is the mechanism behind almost every stealer log. Malicious software lands on a device through a bad download, a cracked program, or a phishing link, then quietly harvests every saved password, cookie, and autofill entry it can find. Those results get compiled from many infected machines into massive files like this one, then shared or sold on channels like Telegram.

Check If You Are Affected

With a leak this size, checking your exposure only takes a minute. HEROIC's free breach scanner searches over 400 billion compromised records, so you can find out immediately if your email is part of this 281,639 record combolist.