The aglelan.txt Leak: 4,977 Stolen Logins Hit the Dark Web

HEROIC analysts identified a stealer log file called "aglelan.txt," part of a larger dataset labeled "5k GOOD EMAIL VALID," uploaded to a Telegram channel on May 5, 2025. The file contains 4,977 records made up of email addresses, plaintext passwords, and the URLs of the websites those logins belong to.

Why This Is Dangerous

The filename itself, "good email valid," signals that whoever compiled this log had already checked the credentials and confirmed they work. That means an attacker isn't sifting through junk data. They're holding a pre-verified list of live email and password combinations, each one already matched to the exact site it unlocks, ready to be used the moment someone downloads the file.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the sites the credentials were used on

Why This Matters

Because these 4,977 credential pairs are plaintext, verified, and tied to specific login pages, they enable near-instant account takeover on those sites. If any of the affected people reused the same password elsewhere, attackers can attempt credential stuffing against email, banking, or social media accounts too, spreading the damage well past the original leak.

How Stealer Logs Work

Stealer logs are generated by infostealer malware that infects a device through sources like cracked software, phishing links, or fake downloads. The malware quietly pulls saved browser passwords, autofill entries, and session data, then packages them into a log file. In this case, whoever handled the file went a step further, filtering it down to only the "good" and "valid" entries before sharing it on Telegram, making the resulting list more dangerous despite its smaller size.

Check If You Are Affected

Small leaks like this one are easy to miss, but they can still expose your working login credentials. HEROIC's free breach scanner checks your email against a database of more than 400 billion exposed records so you can find out in seconds whether you need to change a password.