How the Moodle_Valid Stealer Log Exposed 1,318 Logins Online

In February 2026, HEROIC threat intelligence analysts traced a stealer log named Moodle_Valid back to a Telegram channel where it was uploaded on February 17, 2026. The file contained 1,318 records, each one pairing an email address with a plaintext password and the URL of the login page where the credentials were entered.

How the Moodle_Valid Stealer Log Came Together

Here is how a file like this typically comes to exist. Infostealer malware first infects a device, often through a fake download, cracked software, or a malicious attachment. Once installed, it quietly scrapes every username, password, and web address saved in the victim's browser. The "Valid" in this file's name suggests the person who compiled it took an extra step: testing each set of credentials to confirm the login still worked before packaging the results and uploading them to Telegram for other criminals to use or buy. This does not mean the Moodle learning platform itself was breached. It means the credentials captured from infected devices happened to include logins for Moodle-based sites, and someone verified them before release.

What Was Exposed in the Moodle_Valid Leak

• Email addresses
• Plaintext passwords
• URLs tied to each set of captured login credentials

Why This Matters for the 1,318 People Involved

Because this data was reportedly tested and confirmed working, it is more dangerous than a random, unverified list. A confirmed email and password combination can be used immediately for account takeover, and since many people reuse the same password across multiple sites, the same credentials can enable credential stuffing attacks against email, banking, and shopping accounts. From there, the path to identity theft and financial fraud is short.

How Stealer Logs Like This One Spread

After malware harvests credentials from an infected device, the resulting log is usually sorted, sometimes validated for accuracy, and then distributed through Telegram channels or dark web marketplaces dedicated to stolen data. Buyers use these logs for credential stuffing campaigns, phishing, or direct account takeover. A validated log, like Moodle_Valid, is often considered higher value precisely because the guesswork of whether a password still works has already been done.

Check If You Are in the Moodle_Valid Leak

If you use Moodle or any similar platform and are unsure whether your credentials were exposed, HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records. Run a scan now, and update any password that shows up as compromised, especially if you have reused it elsewhere.