The SkyLogs Stealer Log Leak Put 7,893 Plaintext Passwords at Risk

HEROIC analysts identified a stealer log file uploaded by an anonymous user to a public Telegram channel on January 7, 2024. The file contains 7,893 records, each pairing an email address with a plaintext password and the URL of the site or API endpoint the credential was used on. Unlike a typical website breach, this data was not stolen from a single company's database. It was harvested directly from infected computers.

Why This Is Dangerous

Because these credentials were captured in plaintext straight from an infected device, they are ready to use the moment someone downloads the file. There is no hash to crack and no encryption to break. Each record also includes the exact URL the login was used on, which tells an attacker precisely which account to target, whether that is a bank, an email provider, or a work login, making these logs especially efficient tools for account takeover.

What Was Exposed in This Stealer Log

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

Identity theft and account takeover become much easier once an attacker has a matched set of a login URL, an email address, and a working password. Instead of guessing which site a stolen password belongs to, they already know. That precision means victims of this leak face a heightened risk of unauthorized access to whichever specific accounts appear in the log, along with the downstream risk of financial fraud if any of those 7,893 accounts involve banking or payment services.

How This Stealer Log Was Created

A stealer log is generated by information-stealing malware that infects a victim's device, often through a malicious download, cracked software, or a phishing link. Once installed, the malware quietly harvests saved passwords, autofill data, and browser session details, then packages everything into a log file organized by the website or service each credential belongs to. That log is then sold or, as in this case, given away for free on platforms like Telegram, where other criminals pick it apart to find accounts worth targeting. This method is what makes stealer logs different from, and often more dangerous than, a typical database breach: the data is fresh, plaintext, and already sorted by target.

Check If You Are Affected

Because stealer log data comes directly from an infected device rather than a single website, it is worth checking your exposure even if you do not recognize this specific incident by name. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including this one, so you can find out what has been exposed and secure your accounts before someone else uses this data against you.