One Telegram Upload. 126 Log Files. The Maxuscloud Stealer Had 339 Records.

In June 2025, HEROIC's DarkHive threat intelligence platform identified a stealer log archive labeled "maxuscloud 126count" that was uploaded by a Telegram user. The dataset contained 339 records exposing email addresses, plaintext passwords, and associated URLs. The breach originated from information-stealing malware deployed against victims primarily located in the United States.

Why This Stealer Log Is Dangerous

Because the passwords in this dump are stored in plaintext, attackers can immediately use them to access victim accounts without any cracking or decryption. When paired with the URLs that were also harvested, criminals have a clear roadmap showing exactly which services each credential unlocks. This makes automated account takeover trivially easy, even for low-skill threat actors operating through Telegram channels.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (associated login endpoints and services)

Why This Matters

Even though 339 records may seem like a small number, stealer logs are particuarly dangerous because they contain active, real-time credentials harvested directly from infected devices. These are not old or recycled passwords from a legacy database dump. Attackers use these credentials for credential stuffing attacks across banking portals, email providers, and social media platforms. Victims face account takeover, identity theft, and financial fraud. The plaintext nature of the passwords means there is absolutly no barrier between the attacker and the victim's accounts.

How Stealer Logs Work

Stealer logs are generated by information-stealing malware, sometimes called infostealers, that silently runs on a victim's computer or mobile device. Once installed, the malware captures saved passwords from web browsers, autofill data, session cookies, and sometimes even screenshots or keystrokes. The harvested data is packaged into log files and exfiltrated to command-and-control servers or shared directly in Telegram groups and dark web marketplaces. In this case, the maxuscloud archive was distributed through a Telegram channel, making it accessable to a wide audience of cybercriminals almost instantly.

Check If You Are Affected

If you suspect your credentials may have been compromised in this or any other breach, use HEROIC's free data breach scanner. HEROIC maintains a database of over 400 billion compromised records, making it one of the most comprehensive breach notification services available. Scanning your email address takes only seconds and can reveal whether your information has appeared in known stealer logs, data breaches, or dark web dumps.