A different "threat actor" buys these lists and loads them into automated software called a . These programs are designed to:
As the tool runs, it separates the "hits" (working accounts) from the "bad" (invalid logins). The resulting file, often named accountschecked.txt , valid.txt , or hits.txt , contains the subset of credentials that are confirmed to be active and exploitable. 4. The Aftermath: Sale or Takeover
: When a login is successful, the tool often "scrapes" the account for valuable data, such as saved credit cards, loyalty points, or rare in-game items. 3. The Output: accountschecked.txt accountschecked.txt
Once the accountschecked.txt file is generated, the attacker has two main options:
: The tool automatically attempts to log into various popular websites (like Netflix, Amazon, or Steam) using the thousands of credentials from the leaked list. A different "threat actor" buys these lists and
If you ever find your information in a file like this (often discovered via services like Have I Been Pwned ), it means your credentials were confirmed active by a malicious tool. Processing 23 Billion Rows of ALIEN TXTBASE Stealer Logs
: They sell the "checked" list on "Account Shops" for a premium. Because these accounts are guaranteed to work, they fetch a much higher price than the original unverified combolist. How to Protect Yourself The Output: accountschecked
The story of an accountschecked.txt file is usually one of a . Below is a breakdown of how this file typically comes into existence and what its contents represent. 1. The Origin: The Data Breach