Kayat-ULP-PRIVATE Leak Puts 6,792 Logins at Risk of Chained Attacks

HEROIC analysts found a stealer log file named Kayat-ULP-PRIVATE, uploaded to Telegram on 3 July 2025. ULP stands for URL, Login, Password, the standard format criminals use to package stolen credentials, and this particular file contains 6,792 records of email addresses, plaintext passwords, and the login URLs tied to each one.

Why the Kayat-ULP-PRIVATE Leak Is Dangerous

The ULP format exists specifically to make stolen credentials easy to use. Because each entry pairs a login with the exact website it belongs to, an attacker doesn't need to guess where a password works, they simply load the file into automated login tools and start testing. With passwords already in plaintext, there is no cracking step standing between the leak and account access.

What Was Exposed in Kayat-ULP-PRIVATE

• Email addresses
• Plaintext passwords
• URLs of the sites where credentials were entered

Why This Matters: The Chained Risk

A single reused password rarely stays contained to one account. Once attackers confirm a login works on one site through credential stuffing, they immediately try the same email and password on email providers, banking portals, and social platforms. That chain reaction is how one leaked credential from a file like this turns into full account takeover, identity theft, and financial fraud across several accounts at once.

How ULP Stealer Logs Are Built

ULP files are produced by infostealer malware that infects a device through malicious downloads or phishing links, then extracts saved browser passwords along with the site each one unlocks. The malware formats the stolen data into the URL, Login, Password structure and the resulting file, like Kayat-ULP-PRIVATE, is then sold or shared privately among cybercriminals on Telegram.

Check If You Are Affected

If your credentials are part of this ULP file, the risk doesn't stop at one account. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, helping you spot exposure before attackers chain it into something bigger.