Exposed: 3,722 Plaintext Passwords From the Zelenka Stealer Log

HEROIC analysts identified a stealer log uploaded to Telegram on November 25, 2022, labeled "ZELENKA CLOUD FREE LOGS." The file contained 3,722 records taken directly from infected devices, including email addresses, plaintext passwords, and the URLs of the accounts and services those passwords open. This is not a breach of a single company's systems. It is the output of malware that quietly collected saved logins straight from victims' own computers.

Why This Is Dangerous

The passwords in this log were never encrypted or hashed. They sit in plain, readable text exactly as each victim typed them. That means anyone who gets the file can try the listed email and password combinations immediately, with no cracking needed. Because each credential is paired with the URL it unlocks, attackers also get a direct map of exactly which account or service each stolen login belongs to.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated account URLs

Why This Matters

A leak of 3,722 records is modest compared to headline mega-breaches, but the risk it carries is not. Criminals load stolen email and password pairs into automated tools and test them across banking sites, email providers, and social platforms, a technique known as credential stuffing. Anyone who reused one of these exposed passwords on another account faces a genuine risk of account takeover, identity theft, or financial fraud.

How Stealer Log Attacks Work

A stealer log is produced by information-stealing malware that infects a device, commonly through a fake download, pirated software, or a malicious email attachment. Once running, the malware scans the browser and saved files for stored logins, cookies, and autofill entries, then bundles everything into a single log file. That file is then shared or sold in bulk, often on Telegram, sometimes given away for free to attract buyers looking for larger sets of stolen data, matching the pattern seen with this Zelenka upload.

Check If You Are Affected

If you think your credentials might be part of this or another leak, HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records in seconds. It takes just a moment to find out whether you should change a password or turn on two-factor authentication before an exposed credential becomes a compromised account.