What Is a Stealer Log? CRYPTON_LOGS 301PCS Exposes 6,188 Records

HEROIC analysts found a stealer log file uploaded to a public Telegram channel on November 9, 2025. The file, labeled "CRYPTON_LOGS 301PCS," contained 6,188 records pulled directly from infected endpoint devices. Each record held an email address, a plaintext password, and the URL of the website where that password was used. The name "301PCS" indicates the dump was assembled from 301 separate log files, each representing a different infected machine.

Why This Is Dangerous

Because every password in this file is stored in plain readable text, there is nothing to decode or crack. An attacker who downloads this log can start testing logins against real websites immediately. With 6,188 credential pairs and the exact URLs they belong to, even a low-skill attacker can cause serious damage. One working password to a corporate email account can expose an entier organization to phishing, data theft, and ransomware.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (the specific websites each password was used on)

Why This Matters

Stolen credentials from stealer logs like CRYPTON_LOGS power some of the most destructive cyber attacks:

• Credential stuffing: Bots automatically test each email and password pair against hundreds of websites at once.
• Account takeover: Access to an email inbox lets attackers take over banking, social media, and work accounts through password resets.
• Identity theft: Personal data gathered from hijacked accounts is used to commit fraud, open credit cards, or file false tax returns.
• Financial fraud: Direct access to payment services or e-commerce accounts results in money being stolen or charged.

What Is a Stealer Log Breach?

A stealer log breach happens when infostealer malware infects a personal computer or work device. The malware hides itself and silently records everything the user types into login forms, saving the website address, email, and password. It also harvests saved passwords from your browser's built-in password manager. All of this data is packaged into a structured text file called a log. The attacker receives dozens or hundreds of these logs from many infected machines, bundles them together, and either sells them or posts them freely in Telegram channels. The "CRYPTON_LOGS" name likely refers to the malware family or the Telegram channel responsable for distributing these files. Unlike data breaches that target a company's servers, stealer log breaches target individual devices, meaning your own computer or phone may have been the source.

Check If You Are Affected

HEROIC has scanned and indexed this breach alongside over 400 billion other exposed records. If your email appeared in the CRYPTON_LOGS dump, HEROIC's free breach scanner will detect it instantly. Search your email address now to see if your credentials are circulating on Telegram or dark web markets.

Search your email for free at HEROIC.com