Inside the SunCloudNew Logs: How Malware Stole 6,080 Passwords

Inside the SunCloudNew Stealer Log: 6,080 Records Exposed

On March 1, 2026, HEROIC analysts tracked a new stealer log file, part of the ongoing SunCloudNew series, uploaded to a public Telegram channel. This entry, batch 1641, exposed 6,080 records tied largely to accounts in the United States. The file contained email addresses, plaintext passwords, and the URLs of the sites those credentials belong to, the telltale signature of malware that harvests saved logins directly from an infected computer rather than a breached company database.

Why This Is Dangerous

Because every password in this file is stored in plaintext, an attacker does not need to break any encryption to use it. Each record already links an email address to its password and the exact website it opens, so anyone with the file can start testing logins immediately. That immediacy is what makes stealer logs more dangerous in practice than many larger but encrypted breaches.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs identifying each account's login page

Why This Matters

Files like this one feed directly into credential stuffing, where attackers automatically try each stolen email and password combination across dozens of popular sites. Anyone among the 6,080 affected records who reused a password elsewhere risks having that other account taken over too. Combined with the site URLs, attackers can target the exact platforms tied to each victim, raising the odds of successful account takeover, financial fraud, and identity theft.

How the SunCloudNew Stealer Logs Are Built

This leak did not come from a hacked website. It came from infostealer malware running on individual victims' computers, often installed through phishing links, fake software downloads, or cracked programs. Once active, the malware scans the browser for saved usernames, passwords, and autofill data, then bundles everything into a log file. Criminals collect these logs from infected machines and upload them to Telegram channels like the one associated with SunCloudNew, where the data can be sold, traded, or used directly.

Check If You Are Affected

If you want to know whether your email address appears in this SunCloudNew batch or any other stealer log, HEROIC's free breach scanner checks your details against a database of more than 400 billion breached records in seconds. It is a fast way to confirm whether your credentials are circulating and to prioritize changing any passwords you have reused elsewhere.