How the XIII Logs Stealer Malware Led to 6,076 Stolen Logins on Telegram

In April 2023, a Telegram user operating under the handle "XIII_LOGS" uploaded a stealer log file containing 6,076 compromised records. HEROIC's DarkHive analysts flagged the dataset after it surfaced in a known distribution channel. The exposed data includes email addresses, plaintext passwords, and the exact URLs where those credentials were used. Every record in this dump represents a real person whose device was infected with credential-stealing malware.

Even though 6,076 records may seem small compared to larger breaches, the quality of this data makes it extremly valuable to attackers. Stealer logs contain working credentials pulled directly from browsers and password managers on compromised machines. These are not old, recycled passwords. They are real logins captured at the moment they were typed.

What the XIII Logs Dump Contained

• Email Addresses: Personal and professional email accounts linked to various online services
• Plaintext Passwords: Fully readable passwords with zero encryption, ready for immediate misuse
• URLs: The exact login pages and websites where each set of credentials was entered

Why This Data Puts You at Serious Risk

When attackers have your email, password, and the website you used them on, they do not need to guess anything. They can walk right into your accounts. Credential stuffing tools let criminals test these same combinations across thousands of websites in minutes. If you have ever reused a password, one compromised entry in this log could give an attacker access to your email, banking, shopping, and social media accounts.

Beyond direct account takeover, exposed email addresses become targets for phishing campaigns. Attackers already know which services you use, so they can craft convincing fake emails that reference your actual accounts. This makes the follow-up attacks much harder to reconize.

How the XIII Logs Stealer Malware Captured This Data

Stealer log breaches originate from infostealer malware installed on a victim's device. This type of malware typically arrives through pirated software downloads, fake browser updates, or malicious email attachments. Once running, it silently monitors browser activity and extracts saved passwords, cookies, autofill data, and active session tokens.

The collected data gets bundled into structured log files and transmitted to the attacker's server. From there, the logs are sold in bulk or shared freely on Telegram channels and dark web marketplaces. Because the data comes directly from infected devices, it tends to be highly accurate and often includes credentials that victims are still activley using.

Find Out If Your Credentials Were in This Breach

HEROIC's breach database contains over 400 billion records from thousands of known breaches and stealer log dumps, including the XIII Logs dataset. Our free breach scanner lets you check your email address in seconds. If your credentials appear in this or any other breach, you will know exactly which accounts need attention so you can change passwords and secure your digital life before attackers strike.