The CROWNLOGCLOUD 400 PCS Stealer Log Means Someone Could Be Logging Into Your Accounts

HEROIC Identifies the CROWNLOGCLOUD 400 PCS Stealer Log From August 7, 2023

In August 2023, HEROIC's dark web monitoring systems detected a stealer log file shared on Telegram by an anonymous actor under the label 07 AUGUST CROWNLOGCLOUD 400 PCS. The file contained 4,160 records extracted from compromised US-based devices, capturing email addresses, plaintext passwords, and the exact URLs of the services and platforms each victim was actively using at the time their device was infected.

Why This Data Is Dangerous

The CROWNLOGCLOUD series of Telegram uploads represents an ongoing credential harvesting operation. The August 7 batch was one of several releases from this actor, meaning the threat is part of a sustained campaign rather than a single isolated incident. Each of the 4,160 records in this file contains ready-to-use credentials paired with a specific service URL, giving any attacker who downloads the file an instant roadmap to the accounts they can target. Plaintext passwords require no processing before use.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (exact services and platforms used by victims)

Why This Matters

The CROWNLOGCLOUD 400 PCS stealer log means someone could be logging into your accounts right now without your knowledge. When an attacker has your email, your plaintext password, and the exact URL of your bank, email provider, or social media account, there is nothing stopping them from attempting access immediately. Credential stuffing tools automate this process across thousands of accounts simultaneously. If any of the 4,160 people in this file reused a password, their other accounts are equally at risk. The consequences range from account lockout to identity theft, fraudulent purchases, and the exploitation of linked accounts. Most victims do not recieve any warning because no organization was officially compromised in this breach.

How Stealer Log Breaches Work

Stealer malware is typically introduced to a device through phishing emails, fake software downloads, or trojanized browser extensions. Once running, the malware harvests saved passwords from browser storage, captures session cookies, and records keystrokes on login forms. The resulting data is compressed into structured log files and exfiltrated to attacker servers. These files are then distributed on Telegram in named batches like the CROWNLOGCLOUD series, definitaly sorted by date and piece count to help subscribers track new drops and identify fresh inventory.

Check If Your Data Was Exposed

The 07 AUGUST CROWNLOGCLOUD 400 PCS breach is part of a pattern of stealer log activity that occured throughout the summer of 2023. HEROIC's free dark web scanner searches more than 400 billion leaked records, including every known CROWNLOGCLOUD batch and thousands of similar stealer log collections. Enter your email address to find out whether your credentials were captured in this breach or any related incident. Taking action early is the only reliable way to prevent account takeover before damage is done.