The BabaUlpNew Leak: 103,983 Passwords Exposed. Yours Might Be One.

In December 2025, HEROIC analysts discovered a stealer log file uploaded to Telegram under the name BabaUlpNew 338 K ULP LINE, dated December 1, 2025. The file contained 103,983 records pairing email addresses with plaintext passwords and the specific URLs where each credential was used. This was the second in a series of BabaUlpNew files uploaded to Telegram within days, suggesting an ongoing and active credential harvesting operation at significant scale.

Why 103,983 Exposed Passwords in a Single File Should Concern You

A file of this size represents more than 100,000 individual people whose login credentials were extracted from their own computers without their knowledge. Because the passwords in this file are in plaintext and paired with the specific URLs they belong to, attackers can begin using them immediately. There is no preparation required, no hashing to overcome, and no guesswork involved.

The ULP format of this file, which stands for URL-Login-Password, is the most efficient format for automated account takeover. Software tools designed for credential stuffing attacks can ingest a file like this and begin testing thousands of accounts per minute across hundreds of websites simultaneously.

What the BabaUlpNew December 2025 File Exposed

• Email addresses (the primary identifier for most online accounts)
• Plaintext passwords (immediately usable without decryption)
• URLs (the exact websites each stolen credential belongs to)

Why This Leak Creates a Long-Lasting Identity Risk

Credentials in files like this one do not expire the moment the file is discovered. They circulate in underground markets and Telegram channels for months or even years. Even if an account has not been accessed yet, the risk remains as long as the password is unchanged. People who recieved this data are not in a hurry. They can try credentials weeks or months after first obtaining them.

The combination of email and password creates direct exposure to credential stuffing attacks across every service that shares that password. For people who reuse passwords, one comprimised entry in this file can mean multiple accounts at risk, including banking, email, healthcare, and shopping platforms.

How the BabaUlpNew Stealer Log Operation Works

The BabaUlpNew name appears to be a recurring brand used by a Telegram-based threat actor who regularly uploads credential batches. The ULP LINE naming convention is standard for infostealer output, where each line in the file contains a URL, a login, and a password harvested from an infected device.

The malware responsible collects data from browser password managers and form autofill records, then transmits everything back to the operator. Files are then cleaned, formatted, and uploaded to distribution channels. The December 1, 2025 file is part of a pattern that also inclued the November 24, 2025 BabaUlpNew release, suggesting the same operation was active across multiple weeks.

Find Out If Your Password Is in the BabaUlpNew December File

HEROIC has indexed this BabaUlpNew stealer log as part of its breach intelligence database, which now contains more than 400 billion records. A free scan using your email address will tell you whether your credentials appeared in this file or any other known data breach. If your information is found, changing your password immediately across all services that use it is the single most important action you can take.