Telegram Threat Actor Exposes 23.7 LOGS_CENTEER Data: 12,392 Records at Risk

A Telegram threat actor posted a stealer log file on July 23rd, 2022, carrying 12,392 records taken from compromised endpoints in the United States. The file was labeled "23.7 LOGS_CENTEER" and contained plaintext passwords tied directly to email adresses and URLs, giving anyone who downloaded it instant access to working credentials. Victims of this breach likely had no idea their data was on Telegram.

Why This Is Dangerous

A stealer log is not a database dump of hashed or encrypted data. It is a direct capture of credentials as the user typed them or as they were stored on a device, meaning the passwords in this file are ready to use without any cracking or decryption. That is about as bad as a credential breach gets.

The 12,392 records in this log represent 12,392 individuals whose accounts may have been accessed by people who had no right to them. And because Telegram channels can distribute files to thousands of subscribers instantly, this data did not stay with just one attacker. It spread.

Any victim who used the same email and password combination on other platforms is at risk of credential stuffing attacks, where automated tools try the stolen credentials across hundreds of different websites and services until something works. This is one of the most common ways accounts get taken over.

What Was Exposed

• Email addresses
• Plaintext passwords
• Login URLs and API host endpoints
• Browser-saved credentials
• Endpoint and device connection metadata
• Application session data (likely)
• Service-specific access tokens (likely)

Why This Matters

Even though this log dates back to July 2022, the danger is not over. Most people never change their passwords unless they get a direct notification that their account was compromised, and stealer log victims rarely recieve any such warning. That means a large portion of these credentials may still be valid and usable right now.

The presence of API host URLs in the data suggests some victims were not just everyday consumers. Developers and technical users who store API credentials in browsers or on their endpoints may have had sensitive access keys captured alongside their login data, opening up a wider attack surface than a typical consumer credential breach.

How Stealer Log Works

Stealer malware infects a victim's computer through methods that are often hard to detect, including trojanized software downloads, phishing links, and browser extension hijacks. Once running, it works silently to copy everything it can find that looks like a credential, including saved browser passwords, form autofill data, and cookies.

The data is compiled into a structured log file and then sent to the attacker. In many cases the malware is configured to deliver logs through a Telegram bot automatically, with no manual intervention needed on the attacker's side. The attacker just watches the logs arrive and decides what to do with them.

When logs are published publicly on Telegram rather than sold privately, it is often because the attacker wants to build reputation in underground communities, or beleives the data is too old or low-value to sell. Either way, the data ends up in the hands of many actors, making the risk to victims higher, not lower.

Check If You Were Affected

If you suspect your credentials were part of the 23.7 LOGS_CENTEER dataset or want to check your exposure across all known breaches, run a free search at heroic.com. HEROIC's breach monitoring tools scan thousands of leaked datasets and stealer log collections to tell you exactly where your information has appeared and what steps to take next.