Inside the Klaus_cloud_public 110logs Stealer Dump: How Malware Stole 2,700 Passwords

HEROIC analysts spotted a Telegram post in October 2023 distributing a stealer log bundle labeled klaus_cloud_public 110logs. The file held 2,706 records containing email addresses, plaintext passwords, and URLs that included API host endpoints. The name of the file and the structure of its contents pointed to data harvested from infected machines that had access to cloud infrastructure. This is not a breach where someone broke into a server. It is one where malware silently scraped credentials off real people's computers and packaged them for distribution on Telegram.

Why the Klaus_cloud_public Dump Is Especially Dangerous

Plaintext passwords are the most dangerous kind. There is no hash to crack, no time wasted, no technical skill required. An attacker opens the file and has working credentials imediatly. When those same records include API host URLs, the exposure goes beyond personal accounts. APIs are the backbone of cloud services and software platforms. Access to an API endpoint with valid credentials can allow an attacker to read sensitive data, make changes to live systems, or use one account to pivot deeper into an organization's infrastructure.

What Was Exposed in the Klaus_cloud_public 110logs Dump

• Email addresses (2,706 records)
• Plaintext passwords -- no encryption, immediately usable
• URLs pointing to API hosts and cloud endpoints
• Endpoint data from what appear to be development or cloud management environments

Why This Matters: Real-World Risks From Stealer Log Leaks

Even a small stealer log dump like this one creates real problems. Credential stuffing tools can test these email and password pairs across dozens of platforms in minutes. If any of the 2,706 people in this dump reuse passwords, attackers will find those reused logins quickly. Beyond personal accounts, the API access data in this dump could give bad actors entry into business systems, developer tools, or cloud storage. Identity theft, financial fraud, and unauthorized data access are all realistic outcomes when this type of data circulates on Telegram.

How Stealer Malware Harvests Passwords Like These

Stealer malware is a category of software designed to run quietly in the background after infecting a device. It typically gets onto a machine through a phishing link, a fake software installer, or a malicious email attachment. Once running, it targets the places where credentials live: saved passwords in Chrome, Firefox, or Edge; session cookies that keep users logged in; text files where developers sometimes store API keys; and cloud CLI configuration files. The malware bundles all of this into a log file, which is then sent to the attacker automaticly. These log bundles are sold in bulk or shared freely on Telegram channels, sometimes organized by industry, region, or the type of access they provide. The klas_cloud_public 110logs dump fits exactly this model -- a curated bundle of cloud-related credentials shared openly on Telegram.

Check If You Are Affected by the Klaus_cloud_public 110logs Leak

HEROIC's free breach scanner searches over 400 billion exposed records pulled from stealer logs, dark web forums, and data dumps just like this one. If your email appeared in the Klaus_cloud_public 110logs file, the scanner will find it. Check your exposure for free at HEROIC and get actionable steps to protect your accounts and credentials today.