How the BabaCloudLogs Stealer Malware Exposed 40,059 Passwords

HEROIC analysts identified a large stealer log dump, named BabaCloudLogs 1205 Cloud Logs, uploaded to a public Telegram channel on May 12, 2025. The file contained 40,059 records harvested from infected devices, including email addresses, plaintext passwords, and the API host URLs those credentials connect to.

Why This Batch of Stolen Cloud Logins Is Dangerous

Every credential in this file is paired with the exact API host it unlocks, and the passwords are stored in plaintext rather than hashed. That combination removes the two biggest obstacles an attacker normally faces: figuring out where a stolen password works and cracking it once they find out. With 40,059 records in a single file, this is not an isolated slip, it is a ready-made list for automated account takeover attempts.

What Was Exposed in the BabaCloudLogs 1205 Dump

• Email addresses
• Plaintext passwords
• API host URLs tied to each set of credentials

Why This Matters for the 40,059 Records Involved

When credentials come with the exact service they unlock, attackers can skip guesswork and move straight to logging in, which is what makes stealer logs like this one so effective for credential stuffing and account takeover. Anyone whose email appears here who reused that password on other accounts faces a wider risk of identity theft and financial fraud that reaches beyond the original cloud service.

How Stealer Malware Built the BabaCloudLogs File

Stealer logs like this one come from infostealer malware that infects a device through a phishing email or a malicious download, then quietly copies saved browser passwords, autofill data, and the web addresses they belong to. The malware compiles everything into a single log and sends it back to whoever is running it. In this case, the operator uploaded the finished file straight to a Telegram channel, putting all 40,059 records directly into the hands of anyone in that channel.

Check If You Are One of the 40,059 Affected

If you use cloud services and are not sure whether your credentials showed up in a leak like this, checking takes less time than dealing with the aftermath of an account takeover. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including stealer logs like BabaCloudLogs, so you know right away if a password needs to change.