If You Reuse Passwords, the EvoPanel_Valid Leak Should Worry You

HEROIC analysts have identified a stealer log file labeled EvoPanel_Valid that was uploaded to a Telegram channel in March 2026. The dataset contains 4 exposed records, revealing email addresses, plaintext passwords, and associated URLs harvested from infected devices.

Although the record count is small, every plaintext credential in this dump is immediately exploitable. Attackers do not need to crack hashes or run brute-force tools — the passwords are ready to use as-is.

Why Plaintext Passwords Are an Immediate Threat

When passwords appear in plaintext within a breach file, the barrier to exploitation drops to zero. There is no hashing algorithm to reverse, no salting to work around. Any individual who downloads this file can attempt logins within seconds of opening it.

Credential thieves often prioritize plaintext dumps precisely because of this simplicity. Automated tools can ingest a list of email-and-password pairs and test them against hundreds of services in minutes, turning a small file into a broad attack surface.

Even a dataset of just 4 records can cause significant damage if those credentials protect high-value accounts such as email inboxes, banking portals, or cloud storage services.

What Was Exposed in the EvoPanel_Valid Dump

• Email Addresses — Full email addresses tied to online accounts, which serve as both identifiers and potential phishing targets.
• Plaintext Passwords — Unencrypted passwords captured directly from browsers or applications on compromised machines.
• URLs — The specific websites or services where these credentials were entered, mapping each password to its target login page.

Why Even a Small Leak Fuels Credential Stuffing

Credential stuffing attacks rely on one well-documented habit: password reuse. Studies consistently show that a majority of users recycle the same password across multiple sites. A single valid email-and-password pair from this dump could unlock accounts on dozens of unrelated platforms.

Attackers combine small leaks like EvoPanel_Valid with larger breach compilations to build comprehensive credential libraries. Each new dataset adds fresh combinations that may not yet appear in existing blocklists or breach-notification databases.

The cascading effect is significant. One compromised email account can be leveraged to reset passwords on banking, social media, and workplace systems, turning a single leaked credential into full identity compromise.

How Stealer Logs Harvest Your Credentials

Infostealer malware operates silently on infected devices, capturing credentials as users type them into browsers, email clients, and other applications. These programs record not only usernames and passwords but also the URLs being visited, cookies, autofill data, and sometimes screenshots.

Once the malware collects enough data, it packages everything into a structured log file and transmits it to the attacker. These logs frequently end up on Telegram channels and underground forums, where they are shared freely or sold in bulk.

The EvoPanel_Valid file follows this pattern. The data was compiled by malware running on compromised endpoints and then distributed through Telegram, making it accessible to anyone monitoring these channels.

Check If Your Credentials Were Exposed

If you have ever used passwords across multiple sites or suspect your device may have been compromised, it is important to verify whether your credentials appear in this or similar leaks.

HEROIC offers a free breach scanner that checks your email address and passwords against more than 400 billion records collected from known breaches and stealer logs. Running a scan takes only moments and can reveal exposures you may not be aware of.

If your credentials appear in the results, change your passwords immediately, enable multi-factor authentication wherever possible, and consider running a malware scan on your devices to rule out active infections.