One Telegram Upload. 5,695 Records. The Croncloudfree Stealer Log.

HEROIC analysts identified a stealer log file labeled "CRONCLOUDFREE" shared by a Telegram user in March 2024. Unlike a typical combolist, this file contained 5,695 records of information pulled directly from infected devices, including endpoints, email addresses, API hosts, and plaintext passwords. Why this is dangerous: stealer logs like this one come from malware that ran directly on someone's device, meaning the data can include working session details and account access, not just a password guess. Because the passwords were captured in plaintext as the person actually typed them, they are immediately usable by anyone who has the file. What was exposed: email addresses, plaintext passwords, endpoint and API host details, and associated URLs tied to each record. Why this matters: because stealer logs are pulled from active, infected machines, they can reveal exactly which services a person was logged into at the time of infection. If any of these 5,695 people had the malware on their device, attackers may be able to use the captured credentials for credential stuffing, account takeover, or further identity theft across multiple services. How stealer logs like this one work: a stealer log is generated by malware, often called an infostealer, that infects a victim's computer and quietly collects saved passwords, browser session data, and other credentials before sending everything back to the attacker. That stolen data is then packaged into a log file, labeled by the malware or campaign name, such as CRONCLOUDFREE, and sold or shared on Telegram channels and dark web forums. Because the data comes straight from the infected device, it tends to be more current and more dangerous than older combolists. Check if you are affected: with malware-based leaks like this one, it is especially important to check whether your information was captured. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records so you can quickly find out and take action if needed.