One Telegram Post. 4,009 Records. Inside the Xavier_Log Stealer Log.

HEROIC analysts identified a stealer log file named Xavier_Log, labeled 225 Xavier_Group free, uploaded to a Telegram channel in July 2026. The file contains 4,009 records, each pairing an email address, a plaintext password, and the endpoint or API host the credentials were captured from. Why This Is Dangerous: Stealer logs are collected directly from malware infections on victims' devices, meaning the data comes straight from real, active sessions rather than a scraped database. Because the passwords are stored in plaintext, anyone who downloads this file can start using the credentials immediately with no cracking required. What Was Exposed: - Email addresses - Plaintext passwords - Endpoints and API hosts tied to each credential Why This Matters: A stealer log of 4,009 records gives an attacker a ready-made list of working logins across many different sites and services at once, since the malware captures whatever the victim's browser had saved or auto-filled. That makes it especially useful for credential stuffing and account takeover, and if any of these logins connect to email or financial accounts, the person affected could face fraud or identity theft in addition to losing control of the account itself. How a Stealer Log Like This Works: Stealer malware infects a device, often through a fake download, cracked software, or malicious attachment, and then quietly harvests saved passwords, browser autofill data, and session details from the victim's machine. The malware sends everything it collects back to the attacker, who packages the results into a log file like this one and uploads it to Telegram, either to sell it or share it for free to build reputation in criminal channels. Every credential in the file was working at the moment it was stolen. Check If You Are Affected: Run a free scan against HEROIC's database of more than 400 billion breached records to see if your email address shows up in this leak or any other. If it does, change that password right away, enable two-factor authentication where you can, and run a malware scan on your device.