HEROIC Analysts Found crypton_logs Circulating in Telegram Channels

In May 2023, HEROIC analysts identified the crypton_logs stealer log file circulating across private Telegram channels. The dump contained 5,922 records of credentials silently extracted from compromised devices, including email addresses, plaintext passwords, and the specific URLs where those credentials were used. The discovery process for files like this one involves monitoring underground forums and Telegram channels where stolen data is routinely traded and shared among criminal networks, often within hours of the initial exfiltration.

Why This Is Dangerous

When HEROIC analysts encounter a file like crypton_logs circulating on Telegram, it confirms that the data has already reached criminal comunities and is being actively used or sold. The credentials in this dump are in plaintext, meaning they require no technical effort to exploit. Any criminal who downloaded the file can immediately attempt to log into the email accounts, banking platforms, and other services listed in the log. The open distribution of these files through Telegram means that hundreds or thousands of people may have already accessed the data by the time analysts document it.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (the exact login endpoints associated with each credential pair)

Why This Matters

The discovery of crypton_logs in Telegram channels is a reminder that stealer log data does not stay contained. Once a file is posted in a Telegram channel, it can be forwarded, copied, and redistributed indefinitely. The 5,922 people whose credentials appear in this dump may still be using the same passwords today, years after the data was first collected. If you are one of them, your accounts remain at risk every day the original passwords stay unchanged. Credential stuffing attacks routinely recycle old stealer log data against current account databases, and old breaches continue to fuel new account takeovers.

How Stealer Log Malware Works

Stealer log malware enters devices through phishing campaigns, drive-by downloads, and trojanised software. Once executed, the malware scans the device for saved browser credentials, active session cookies, and autocomplete data. It silently extracts every username, password, and URL combination it finds and transmits the data to an attacker's infrastructure. From there, the collected logs are packaged, sometimes given a brand name like crypton_logs, and released into underground markets and Telegram channels. The entier process from infection to Telegram distribution can take less than 24 hours.

Check If You Are Affected

HEROIC's free scanner searches your email against more than 400 billion exposed records, including the crypton_logs stealer log and thousands of other breach files our analysts have identifed and indexed. Enter your email now to find out whether your credentials appeared in this Telegram dump or any other known exposure. If your data is in the results, HEROIC will tell you exactly what was leaked and guide you through every step of securing your accounts.