Your APRIL 5 Telegram Stealer Log Data May Be at Risk: Here’s What You Need to Know

A Telegram user uploaded a stealer log file in December 2023 labeled "APRIL 5 - 1019 LOGS," exposing 12,285 records pulled from infected devices in the United States. HEROIC analysts reviewing the file found that each record includes an email address, a plaintext password, and a URL identifying the associated service. This upload is another chapter in the ongoing stream of infostealer data shared openly across messaging platforms.

Why This Is Dangerous

Unlike a corporate data breach where passwords are usually stored in hashed form, infostealer malware grabs passwords before they ever leave the browser. By the time this file was uploaded to Telegram, those passwords were already sitting in plaintext, ready to use. With 12,285 records in circulation, credential stuffing tools can run through thousands of these email and password combinations against popular websites in a matter of hours, putting any account where the same password was reused immediately at risk.

Distributing this file through Telegram rather than a private forum made things worse in some ways. Telegram channels can have thousands of subscribers, and files are easily forwarded with no paywall or vetting process standing in the way.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated service URLs

Why This Matters

Even though this batch only contains around 12,000 records, the individual impact can be significant. A single exposed email and password combination can be the starting point for a full account takeover, and since email accounts are commonly used to reset other passwords, one compromised login can cascade into many more.

How Stealer Logs Work

Infostealer malware is typically delivered through everyday-looking downloads such as a pirated app, a fake software crack, a browser extension, or a phishing email attachment. Once running on a device, it operates silently, scanning through the browser's saved password vault and any cached credentials.

The malware then compiles everything into a structured log file and sends it back to the operator, who bundles logs together and labels them by date or batch number, which is exactly what the "APRIL 5" naming convention reflects. The operator then either sells the logs or, as happened here, distributes them through public Telegram channels. The entire process from infection to exposure can happen in under a day.

Check If You Were Affected

Use HEROIC's free breach checker at heroic.com to search your email address and see if your credentials have been exposed in this or any other known breach.