Analysts Uncover 7,587 Leaked Logins in “url_log_pass1”

In September 2025, HEROIC analysts came across a stealer log file named "url_log_pass1" while monitoring a Telegram channel known for hosting stolen credential dumps. The upload, posted by an anonymous user, turned out to contain 7,587 records of email addresses, plaintext passwords, and the site URLs each login belongs to.

What Analysts Found When They Opened the File

The filename alone, "url_log_pass1," was enough to flag it for review. Once opened, it was clear the file followed the classic structure of a stealer log: each line lists a website address, the email used to sign in, and the exact password saved in the browser. Nothing was encrypted or hidden.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated website URLs

Why This Matters

Unencrypted, ready-to-use logins are exactly what fuels credential stuffing attacks. If any of these 7,587 accounts share a password with a bank, email, or shopping account, the risk of account takeover, identity theft, or financial fraud rises sharply.

How Stealer Logs Work

Stealer malware infects a device quietly, often bundled inside cracked software or a fake download link. From there, it reads through the browser's saved passwords and autofill data, then writes everything into a single log file, the same kind of file analysts discovered here. These logs are a staple product on Telegram-based cybercrime channels.

Check If You Are Affected

You do not have to wonder whether your information showed up in a file like this one. HEROIC's free breach scanner checks your email against more than 400 billion exposed records and tells you right away.