The MOONLOGSFREE 418pcs Dump Contains Exactly 8,426 Email and Password Pairs

HEROIC analysts discovered the MOONLOGSFREE 418pcs stealer log during routine monitoring of Telegram channels in October 2023. The file contained exactly 8,426 records, each representing data stolen from a compromised endpoint. What made this particular dump stand out was the volume of URLs pointing to internal development environments, staging servers, and API hosts, rather than just generic web accounts. The data suggested the malware had infected developer workstations or corporate machines with access to software build systems and internal tooling.

Why This Is Dangerous

When a stealer log targets development machines, the consequences go beyond a single compromised account. A developer's saved passwords often include access to source code repositories, deployment servers, cloud environments, database connections, and internal wikis. One infected machine can hand an attacker the keys to an entire software supply chain. On top of that, the passwords in this dump were stored in plaintext, meaning there is no delay between downloading the file and attempting to use the credentials. Any attacker who grabbed this log from Telegram could begin testing logins against the listed URLs within minutes.

What Was Exposed

• 8,426 total records from compromised developer and corporate machines
• Email addresses linked to work and personal accounts
• Plaintext passwords with zero encryption or obfuscation
• URLs including API hosts, staging environments, and internal tools
• Data harvestd from infostealer malware on infected endpoints

Why This Matters

The MOONLOGSFREE label and the "418pcs" tag suggest this was packaged and distributed as part of a larger collection of stealer logs, likely to be sold in bulk on Telegram. This kind of packaging makes it easier for low-skill attackers to buy pre-organized credential files without needing to do any of the harvesting themselves. The result is that a single infostealer infection on one developer's machine can end up in the hands of dozens of different attackers within days. For any organization whose employees used their work credentials on an infected device, the exposure window is much larger than it appears from the record count alone.

How Stealer Log Breaches Work

An infostealer infection usually begins with a phishing email, a malicious software download, or a cracked application. Once the malware is running, it silently scans the infected device for anything valuable: browser-saved passwords, session cookies, form autofill data, and locally stored files. It organizes everything into a structured log file and sends it back to the attacker. The attacker then bundles logs from many different infected machines and uploads the collection to Telegram or sells it on underground forums. The MOONLOGSFREE files followed this exact path, appearing on Telegram packaged into a collection of 418 individual log pieces.

Check If You Are Affected

If you or anyone at your organization uses a work email to log into cloud tools, development platforms, or API services, your credentials may have ended up in a stealer log like MOONLOGSFREE. HEROIC's free breach scanner checks your email address against over 400 billion compromised records, including stealer log collections and credential dumps from across the internet. The check is instant and free. Visit HEROIC now, enter your email, and see whether your data has been exposed before someone uses it against you.