18,593 Plaintext Passwords From the YOULOGS MIX1182pcs Stealer Log Just Surfaced on Telegram

In October 2023, security analysts identified a stealer log file uploaded to a public Telegram channel by an anonymous user. The file, labeled YOULOGS MIX1182pcs, contained 18,593 records harvested directly from malware-infected endpoints. The exposed data included plaintext passwords, email addresses, and the URLs of the services those credentials belonged to. This type of log is a direct output of infostealer malware running silently on victims' machines, collecting everything typed or saved before sending it back to an attacker-controlled server.

Why This Is Dangerous

Stealer logs that include plaintext passwords are among the most immediately actionable data a cybercriminal can acquire. Unlike hashed passwords that require cracking, these credentials are ready to use the moment they are downloaded. An attacker with access to this log can attempt to sign into every email account, banking portal, and social media profile associated with each exposed address. Because the URLs are included, attackers already know exactly which services to target. Victims whose work email credentials appear alongside personal account logins face compounded risk, as a single compromised inbox can unlock password reset flows across dozens of other accounts.

What Was Exposed in the YOULOGS MIX1182pcs Stealer Log

• Email addresses
• Plaintext passwords
• URLs of compromised services and endpoints

Why This Matters

Credential stuffing attacks rely on exactly this kind of data. Threat actors load these email and password pairs into automated tools and run them against hundreds of popular services simultaneuosly. Even if only a small percentage of the 18,593 accounts are still active with the same password, that translates to hundreds of successful unauthorized logins. From there, attackers pivot to account takeover, financial fraud, and identity theft. The inclusion of service URLs makes this log particularly efficient for targeted attacks, reducing the guesswork that typically slows down credential stuffing campains.

How Stealer Logs Work

Infostealer malware is typically delivered through phishing emails, malicious software downloads, or compromised browser extensions. Once installed on a victim's device, it silently records keystrokes, harvests saved browser credentials, captures session cookies, and logs the URLs of sites the user visits. All of this data is packaged and transmitted to a remote server controlled by the attacker. The attacker then compiles records from many infected machines into a single log file, which can be sold, shared, or uploaded to platforms like Telegram for wider distribution. The victim usually has no idea their machine was infected or that their credentials are now circulating among cybercriminals.

Check If You Are Affected

HEROIC's free dark web scanner searches over 400 billion compromised records, including stealer logs like YOULOGS MIX1182pcs. If your email address or any credential connected to it appeared in this or any other breach, you will know within seconds. Enter your email at HEROIC.com to run a free scan and find out exactlly what information about you is already in the hands of threat actors.