The 17_08 Stealer Log Leak Exposed 2,399 Plaintext Passwords

HEROIC analysts found a stealer log named 17_08, dated August 19, 2024, containing 2,399 records of email addresses, plaintext passwords, and the URLs those passwords unlock. The data was pulled from individual infected devices rather than from one company's systems. Scan your email to check if you are in this file.

This file is dangerous simply because nothing protects the passwords inside it. They were stored in plain text, so anyone who opens the file can read and use them immediately, and the matching URLs show exactly which account each one belongs to.

What the 17_08 Log Contains

• Email Addresses: identifies the account holder and gives attackers a phishing target.
• Plaintext Passwords: usable right away, with no cracking required.
• URLs: pinpoint the exact login each password opens.

What Happens to Accounts in This File

Accounts tied to the leaked URLs are at immediate risk, since the password sitting next to them is already readable. If any of these passwords were reused elsewhere, those other accounts, including email, banking, or shopping logins, are exposed as well. A working email address paired with a real password is also enough for attackers to attempt targeted phishing.

How a Log Like 17_08 Is Built

Stealer logs like this one come from malware running quietly on an infected device, collecting saved browser passwords and the addresses of the sites they open. Once enough data is gathered, it is packaged into a single file and passed along, in this case surfacing more than a year after it was first collected. No breach of a company is needed for a file like this to exist.

What to Do After the 17_08 Leak

Scan your email to see if your address appears in this file. Clean your device of malware before changing anything, since a new password typed on an infected machine can be captured the same way the old one was. Once your device is clean, change the passwords for every account tied to the leaked URLs, for both personal and work email alike.