Inside the Stealer Logs: How Malware Harvested 409 Passwords From prdscloud Users

What HEROIC Found in This Stealer Log Breach

In August 2023, HEROIC's dark web intelligence team identified a stealer log file uploaded by a Telegram user exposing records tied to prdscloud endpoints. The file, shared openly in a Telegram channel, contained 409 records including email addresses, plaintext passwords, and URLs captured directly from compromised machines. The data was harvested by infostealer malware before being compiled and distributed by a threat actor operating through Telegram.

Why This Data Is Dangerous

Stealer log data is among the most actionable credential intelligence available to cybercriminals. With plaintext passwords, email addresses, and captured URLs, an attacker can:

• Log directly into victim accounts without any cracking required
• Target cloud infrastructure and API endpoints using harvested credentials
• Pivot from one compromised account to internal systems
• Sell or trade access to corporate environments on dark web markets
• Use captured URLs to identify which platforms and services the victim was accessing

Because the passwords are in plaintext, there is no barrier between the attacker and immediate account access. This is not a situation where hashed passwords slow down exploitation -- the credentials are ready to use the moment they are obtained.

What Was Exposed

The following data types were confirmed in this stealer log:

• Email Addresses
• Plaintext Passwords
• URLs (captured browsing sessions and login endpoints)

A total of 409 records were exposed. While the record count is relatively small, stealer log data tends to be highly targeted and recieve immediate use by threat actors.

Why This Matters to You

Even a small stealer log breach can have outsized consequences. If your credentials were captured by infostealer malware, your accounts are at immediate risk of takeover. Attackers use this type of data for:

• Credential stuffing -- testing stolen login pairs across hundreds of services
• Account takeover -- directly accessing email, cloud, and business platforms
• Identity theft -- using personal details to impersonate victims
• Corporate espionage -- leveraging cloud and API credentials to breach organizations

If a URL captured in this log points to a work system or financial platform, the damage can extend far beyond a single account. Definately change any passwords associated with affected accounts immediately.

How Stealer Log Breaches Work

Stealer logs are created by a category of malware known as infostealers. These programs are typically delivered through phishing emails, malicious downloads, or compromised software. Once installed on a victim's machine, an infostealer silently records:

• Saved browser passwords and autofill credentials
• Session cookies that can bypass multi-factor authentication
• URLs of sites the user visits and logs into
• Email credentials and API keys stored locally

The collected data is then packaged into a log file and transmitted to the attacker. These logs are either used directly or sold in bulk on Telegram channels and dark web forums. The entire process from infection to credential sale can occured within hours. Because the logs capture data at the device level, even strong passwords stored in browsers become vulnerable.

Check If Your Data Was Exposed

HEROIC's free breach scanner has indexed over 400 billion records from dark web sources, stealer logs, and data dumps -- including this dataset. If your email adress or credentials appeared in this or any other breach, you deserve to know.

Search your email now using HEROIC's free tool to find out if your data has been compromised. Early detection is the most effective defense against account takeover, identity theft, and credential abuse.