Inside LuffichCloud Stealer Logs: 4,916 Passwords Harvested

HEROIC detected a stealer log package labeled LuffichCloud being distributed for free on Telegram in July 2026. The collection contains 4,916 records of stolen credentials captured by infostealer malware, with all passwords stored in plaintext and ready for exploitation by threat actors.

Plaintext Storage Eliminates Every Layer of Defense

Passwords in this dump were captured and stored without any form of encryption or hashing. Each credential appears exactly as the victim typed it, meaning attackers need zero technical skill to exploit them. They can simply take the plaintext password and log in to the associated account — no brute-forcing, no rainbow tables, no decryption steps required.

What Was Exposed

• Email Addresses — identifying victims and linking them to online accounts
• Plaintext Passwords — providing immediate, unobstructed access to compromised accounts
• URLs — mapping the exact websites and services from which credentials were stolen

Password Reuse Turns One Breach Into Many

Cybercriminals know that most people recycle passwords across services. After obtaining credentials from this dump, they use automated credential stuffing tools to test each email-password combination against dozens of high-value targets — online banking, corporate email, cloud storage, and e-commerce platforms. One match can trigger a chain reaction of compromised accounts across a victim's entire digital presence.

The Technical Anatomy of Stealer Log Attacks

Stealer logs originate from infostealer malware families like RedLine, Raccoon, and Vidar. These trojans infiltrate devices through malicious downloads, cracked software, or phishing links. Once active, they extract credentials stored in web browsers, capture keystrokes, harvest session cookies, and collect system fingerprints. The resulting log files are structured datasets that make it trivial for other attackers to search, sort, and exploit the stolen data at scale.

Check If Your Credentials Were Exposed

Your credentials may be circulating in this dump without your knowledge. HEROIC continuously indexes over 400 billion compromised records from data breaches and stealer logs around the world. Use HEROIC's free breach scanner to search for your email address or domain and find out whether your data has been exposed in this or any other known breach.