Your Password Could Be in the HelloKittyCloud 231 Telegram Stealer Log

HEROIC's research team discovered the stealer log dataset known as HelloKittyCloud 231 uploaded by a Telegram User, which surfaced on July 4, 2023. An unidentified threat actor distributed this file through Telegram, exposing 2,474 records harvested from infected devices. The exposed data includes email addresses, plaintext passwords, and URLs -- a combination that gives attackers direct access to real accounts on real services, no technical barrier required.

Why This Is Dangerous

If your email address is in the HelloKittyCloud 231 log, your plaintext password is sitting next to it in a file that has already been shared with criminals. There is no hashing or encoding protecting it. The URLs in the log confirm which websites your credentials were used on, so attackers do not even have to guess where to try logging in. For anyone in this dataset, the threat is immediate and specific.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (the specific services and platforms accessed from infected devices)

Why This Matters

Stealer log credentials like those in the HelloKittyCloud 231 dump are fed directly into credential stuffing tools. These automated programs try the stolen email-password pair on every major platform -- banking, shopping, email, healthcare -- looking for anywhere the password was reused. A single match leads to account takeover, which can escalate to identity theft and finanical fraud. Because most people use the same passwords across multiple sites, one compromised device can expose accounts the victim forgot they even had. The damage is rarely contained to a single platform.

How Stealer Logs Work

Infostealer malware is built to be invisible. It arrives through phishing emails, fake cracked software, or malicious browser plugins, and it installs without triggering obvious alerts. Once running, it methodically reads saved passwords from every browser installed on the machine, intercepts login forms as they are filled out, and captures cookies that allow session hijacking. It also records the URLs of recently visited sites, which is why this log contains web addresses alongside the credentials. Everything is packaged into a log file and sent to the attacker's server. These logs are then batched and sold or freely shared on Telegram and dark web forums. The person whose device was infected often has no idea anything happend until they start getting locked out of their own accounts.

Check If You Are Affected

HEROIC's free scanner checks your email address against over 400 billion exposed records, including the HelloKittyCloud 231 Telegram stealer log. If your credentials are in this breach or any of the thousands of other datasets HEROIC monitors, you will find out immediately. Do not wait for the damage to show up -- scan for free right now.