How Malware Logs Became a 9.8M Redline Combolist Data Leak

HEROIC's dark web monitoring team flagged a combolist labeled "FRESH ULPP 20-07-2026 Redline_Cl0ud4," uploaded to Telegram and dated 25-Jul-2026. The file contains 9,865,439 records pairing email addresses with plaintext passwords and the URLs where each login was used, making it one of the largest individual combolists HEROIC has logged recently.

Why This Is Dangerous

The file's name references "Redline," a well-known credential-stealing malware family, which suggests the data inside originated from infected devices before being reformatted into a combolist. Combined with nearly 9.9 million plaintext password pairs, this is a ready-made toolkit for large-scale automated attacks across almost any website an attacker chooses to target.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (the login pages associated with each credential)

Why This Matters

A list this large is typically fed directly into automated credential-stuffing tools that test each email and password pair against major email providers, banks, and retailers within minutes. Because the passwords are stored in plaintext, no extra cracking step is needed. For the millions of people whose information appears here, the practical risk is account takeover, followed by identity theft or financial fraud if any of those accounts hold personal or payment information.

How Combolists Work

A combolist compiles login credentials, usually formatted as email:password, into a single searchable file. Some combolists are stitched together from older public breaches, while others, like this one, appear to draw from stealer malware logs that were later cleaned up and merged into a "fresh" list for easier resale or distribution. The label "FRESH" in the file name signals the seller is marketing it as recently compiled and less likely to contain already-changed passwords, which makes it more valuable, and more dangerous, on the dark web.

Check If You Are Affected

With nearly 10 million records in this single file, the odds that your email address is included are meaningfully higher than with a smaller leak. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, so you can find out in seconds and update any passwords you may still be reusing.