Our Analysts Found the ZELENKA CLOUD FREE LOGS Circulating in Telegram Channels

HEROIC analysts tracking dark web and Telegram-based credential markets identified the ZELENKA CLOUD FREE LOGS file when it appeared on a public Telegram channel in December 2022. The upload was made by an anonymous user and contained 5,547 exposed records harvested by infostealer malware from infected endpoints. Each record in the dump includes an email address, a plaintext password, and associated URLs representing the services each victim was logged into at the time of infection. The ZELENKA CLOUD branding is associated with a pattern of free log releases used to advertise paid credential services on underground markets -- the free dump is a sample intended to draw buyers toward larger private collections of the same stolen data.

Why the ZELENKA CLOUD FREE LOGS Leak Is Dangerous

The danger of a stealer log like ZELENKA CLOUD FREE LOGS is not just in the data itself -- it is in the implied larger dataset behind it. Free log releases are marketing tools in the underground economy. When attackers post a "free" sample of 5,547 records, it signals that a much larger collection exists and is available for purchase privately. The 5,547 publicly posted records are already dangerous on their own: every password in this file is plaintext, immediately usable with zero additional effort. But the broader implication is that thousands more records from the same campaign may be circulating in private Telegram groups and dark web forums that are not publicly visible. Victims of this campaign may appear in the public dump, the private collection, or both.

What Was Exposed

• Email addresses
• Plaintext passwords (no encryption or hashing)
• URLs linked to compromised websites and services
• API host information from infected endpoints
• Endpoint device metadata

Why This Matters for You

The ZELENKA CLOUD FREE LOGS file was posted in December 2022, meaning this data has been in circulation for years. Every credential in this dump has had ample time to be tested, traded, and exploited across dozens of platforms. If your email address and password appear in this log and you have not changed that password since 2022, any account using those credentials is at serious risk right now. Stealer log victims almost never recieve any direct notification -- there is no company reporting a database breach because the theft happened at the device level. The data has been freely available to anyone who knew where to look on Telegram since the day it was posted. Checking whether you are in this dump should be considered urgent, not optional.

How Stealer Log Malware Works

ZELENKA CLOUD FREE LOGS was produced by credential-stealing malware -- software that silently runs on a victim's device and harvests every password it can find. These infections typically begin with a deceptive download: a cracked application, a fake browser extension, a malicious email attachment, or a drive-by infection from a compromised website. Once the malware executes, it immediatley targets browser password stores across Chrome, Firefox, and Edge, pulling every saved credential. It also scans for desktop application passwords, FTP credentials, email client logins, and any cookies that could be used to hijack active sessions. The collected data is structured into a log file and uploaded to the attacker's server within minutes of infection. The victim's device appears to function normally throughout. The malware then quietly exits or deletes itself, leaving no obvious sign that the theft occured. The resulting logs are then packaged, branded with a name like ZELENKA CLOUD, and distributed on Telegram as free samples or sold in bulk.

Check If You Are Affected

HEROIC's free breach scanner checks your email address against more than 400 billion exposed records, including the ZELENKA CLOUD FREE LOGS Telegram dump from December 2022. The scan takes seconds, costs nothing, and requires no account to run. If your email appears in this breach or any other dataset HEROIC tracks, you will see exactly what data was exposed and receive clear guidance on what to do next. Given that this log has been circulating for years, checking your exposure now is the first step to ensuring your accounts have not already been quietly compromised. Run your free HEROIC scan today.