Inside 2K Japan 03.07: How Malware Harvested 2,025 Login Credentials

HEROIC analysts identified this stealer log on July 3, 2026. The breach exposed 2,025 records, with stolen data including email addresses, plaintext passwords, and URLs. The source is identified as 2K Japan 03.07 uploaded by a Telegram User.

Why This Is Dangerous

This stealer log targets Japanese accounts and includes the exact URLs where credentials were used. That means attackers know which specific websites each victim logged into, allowing them to target account takeover attempts with precision. Combined with plaintext passwords, this data gives attackers an immediate and actionable route into real accounts.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs

Why This Matters

The 2,025 stolen credentials in this log expose victims to credential stuffing attacks, targeted account takeovers, and identity theft. The geographic focus on Japan suggests attackers are targeting specific regional services. Individuals who reuse passwords across banking, shopping, or social media accounts face elevated risk of financial fraud and unauthorized access.

How a Stealer Log Works

A stealer log is produced by malware that runs silently on an infected device. It extracts passwords saved in browsers, records keystrokes during logins, and captures authentication tokens. The resulting data file is sold or distributed through private Telegram groups, where buyers pay for access to validated login credentials organized by region or service type.

Check If You Are Affected

HEROIC offers a free breach scanner that searches 400 billion records. Search your email address now to see if your credentials appear here or elsewhere. Free, takes seconds.