KURZL0GS Stealer Log Part 7: 30,628 Fresh Credentials Leaked

On July 24, 2026, HEROIC analysts tracked a stealer log batch labeled "KURZL0GS_UP" (Part 7) as it was uploaded to a Telegram channel, exposing 30,628 records. Each record combines an email address, a plaintext password, and the URL of the site the credentials belong to, information pulled directly from malware infections rather than a single hacked website.

Why a Fresh Stealer Log Like This One Is So Dangerous

The label "fresh" matters here: these are recently harvested credentials, meaning the passwords are more likely to still be active than data recycled from an old breach. An attacker holding this log can log directly into the listed URLs using the exact, current password each victim was using at the time their device was infected, no guessing or password cracking required.

What Was Exposed in the KURZL0GS_UP Part 7 Log

• Email addresses
• Plaintext passwords
• URLs linked to the accounts

Why This Matters for the 30,628 People in This Log

Because stealer logs capture live, working credentials at the moment of infection, they are especially valuable for credential stuffing and direct account takeover. Anyone among the 30,628 affected records risks having their email, banking, or shopping accounts accessed directly, opening the door to identity theft and financial fraud with far less friction than an attacker would face with older, stale data.

How a Stealer Log Like KURZL0GS_UP Gets Made

A stealer log is generated by malware installed on a victim's device, often through a fake download, cracked software, or phishing link, that quietly harvests saved passwords, browser autofill data, and login URLs. The infected device's owner usually has no idea it happened. Once collected, these logs get bundled into numbered parts, like this "Part 7," and uploaded to Telegram channels where they're sold or shared among cybercriminals.

Check If Your Credentials Are in This or Another Stealer Log

Stealer logs move fast, and the sooner you know you're affected, the sooner you can lock down your accounts. HEROIC's free breach scanner checks your email address against more than 400 billion compromised records, including stealer logs like this one, so you can act before an attacker does.