How the MOONLOGSFREE 18 Stealer Operation Led to 196 Stolen Logins Sold on Telegram

HEROIC analysts verified the Moon logs MOONLOGSFREE 18 dataset during dark web intelligence monitoring. Uploaded to Telegram in August 2023, the file contains 196 records. Each record includes an email address, a plaintext password, and the URL of the endpoint or service where those credentials were used. The MOONLOGSFREE branding in the file name is a naming convention used by stealer log operators who distribute sample batches for free on Telegram to advertise their services and build a buyer base.

Why Free Sample Logs Are Part of a Larger Criminal Operation

The "FREE" and "50pcs" notation in this file name reveals how this type of stealer log is typically distributed. Threat actors operating stealer malware campaigns use free sample batches to attract buyers who then purchase larger sets of logs. The 196 records in this batch are likely a curated sample intended to demonstrate the quality and freshness of a much larger dataset available for purchase through the same Telegram channel.

This means the 196 people whose credentials appear here are at risk not only from whoever downloaded this free sample, but potentially from a larger pool of buyers who acquired expanded versions of the same data.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs (the specific services and endpoints where each credential was used)

Why This Matters: Targeted Account Takeovers and Cascading Risk

Even a small dataset like this one carries real consequences. The 196 records in the MOONLOGSFREE 18 file represent 196 individuals whose logins were stolen from their own devices. With plaintext passwords and target URLs included, any attacker who downloads this file can attempt logins at the listed services immediately, without any additional tools or technical skill.

If those same email and password combinations are used on other services, the credential stuffing risk extends far beyond the original targeted sites. Financial accounts, email inboxes, healthcare portals, and subscription services all become potential targets. Attackers test stolen credentials systematically and at scale.

How the MOONLOGSFREE Stealer Log Operation Works

MOONLOGSFREE is a distribution channel for stealer malware output. The operation works by infecting victim machines with stealer malware, which silently harvests saved browser credentials, cookies, and session tokens. The harvested data is packaged into numbered batch files and distributed via a Telegram channel using a tiered model: small free samples to attract attention, with larger paid batches available to buyers.

The number 18 in this file name indicates it is the eighteenth batch in a series, pointing to an ongoing, organized operation with a sustained output of stolen credentials. The stolen data passes through multiple hands before credentials are used, sold again, or incorporated into larger combolist collections.

Check If Your Credentials Appear in the MOONLOGSFREE 18 Breach

HEROIC's free breach scanner indexes more than 400 billion records, including this stealer log and many datasets from similar Telegram-distributed operations. Enter your email address to find out whether your credentials appear in the Moon logs MOONLOGSFREE 18 file or any other verified breach in our database. Given that this data comes from a commercial stealer operation with an active distribution network, checking your exposure is an immediate priority.