Moon Cloud Stealer Log Exposes 10 Plaintext Credential Records

HEROIC's DarkHive intelligence system discovered this stealer log dataset, exposing 10 records. The data was leaked in October 2022 and originates from a stealer log file uploaded to a Telegram channel. The compromised data includes email addresses, plaintext passwords, and URLs captured by information-stealing malware installed on victim devices.

Why This Is Dangerous

Stealer log data is among the most dangerous type of breach information because it contains plaintext passwords captured directly from infected devices. Unlike breaches where passwords are stored as hashes, stealer logs recieve credentials in the exact form the victim typed them, meaning attackers have immediate access to working passwords without any cracking required. The URLs included in this dataset reveal which specific websites and services the victims were logged into when thier device was infected, allowing attackers to target the highest-value accounts directly. Victims whose credentials appear in stealer logs face immediate account compromise risk across every service captured in the log.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs

Why This Matters

Stealer log files distributed through Telegram channels are bought and sold by criminal operators who use them for account takeover attacks. The plaintext passwords in this dataset can be tested immediately against the target URLs, and attackers also run the credentials against dozens of other popular services in credential stuffing campaigns. Even a small dataset of 10 records represents 10 fully compromised identities where the attacker likely has the victim's active login credentials. Users whose data appears in stealer logs should treat every password stored in their browser or used on any captured website as fully compromised and change them immediately across all accounts.

How Stealer Log Breaches Work

Stealer logs are generated by information-stealing malware that infects victim computers through phishing emails, malicious downloads, or compromised software installers. Once installed, the malware silently captures usernames, passwords, and session cookies saved in web browsers, then transmits the captured data back to the attacker. The resulting log files, which contain credentials organized by URL, are then sold in bulk on criminal markets or shared freely on Telegram channels to attract buyers for larger datasets. Victims typically have no idea thier device is infected until they notice unauthorized account activity, by which time their credentials have already been distributed to multiple criminal buyers.

Check If You Are Affected

HEROIC offers a free identity scanner that searches over 400 billion records, including data from stealer logs like this one. Visit heroic.com to scan your email address and find out if your information was exposed.