Everyday US Users Caught in the MOONLOGSFREE Stealer Log Exposing 6,750 Records

On October 17, 2023, a Telegram channel distributed a stealer log file under the name MOONLOGSFREE 411pcs, uploaded freely for anyone to download. The log contained 6,750 records harvested from infected endpoints belonging to everyday users in the United States. Each record exposed an email address, a plaintext password, and one or more URLs identifying the services the victim was logged into at the time of infection. The name MOONLOGSFREE reflects the distribution model: stolen credentials packaged and given away at no cost on public messaging channels, where they are then picked up by other threat actors for use in follow-on attacks.

Why This Is Dangerous

Free stealer logs like MOONLOGSFREE are distributed specifically to attract a wide audience of low-level attackers who might not have the resources to purchase credentials. This means the 6,750 records in this dump were not accessed by one attacker but potentially by hundreds. Each downloader had immediate access to working email and password combinations paired with the URLs of the services the victims used. That pairing allows attackers to skip credential stuffing at random and instead log directly into known accounts. The result is a fast, targeted wave of account takeovers affecting real people who had no warning their device had been compromised.

What Was Exposed in the MOONLOGSFREE Stealer Log

• Email addresses
• Plaintext passwords
• URLs (associated service and login endpoints)
• Endpoint and API host identifiers

Why This Matters

The victims in this log are ordinary people, not corporations or high-profile targets. Stealer malware does not discriminate. It infects the laptop of a freelancer, the home desktop of a retiree, the work computer of an office employee. Once credentials are in a free public log, they enter a cycle of reuse that can last for years. Criminals test them against streaming services, online banking, Amazon, PayPal, and workplace portals. A single plaintext password reused across three sites means three accounts are at risk from one record. This is how identity theft and financial fraud begin for most people -- not with a dramatic hack, but with a sepperate criminal quietly using a password they found for free on Telegram.

How Stealer Logs Work

Infostealer malware is designed to run silently on a victim's device and harvest credentials before the user has any idea something is wrong. It typically arrives through a fake cracked software download, a malicious email attachment, or a compromised browser extension. Once installed, the malware sweeps through saved passwords in browsers, captures active session cookies, and records any credentials typed into login forms. The collected data is compiled into a structured log file and sent to the attacker's server. The infected device continues to function normally, giving the victim no reason to suspect a compromise. The log is then sold or distributed freely on channels like Telegram, where it is downloaded and used by multiple actors. The recieve-and-reuse model of free log sharing is one of the fastest-growing tactics in low-level cybercrime today.

Check If You Are Affected

If you were using any online service through a US-based device in the period before October 2023, your credentials could appear in this log or others like it. HEROIC's free breach scanner searches over 400 billion compromised records, including stealer logs distributed through Telegram and dark web forums. Check your email address at HEROIC.com today -- it takes less than a minute, and finding out now is far better than discovering it after your accounts have been taken over.