Instead of checking card validity, these files often contain malicious software (such as Trojans or keyloggers) that can compromise personal data or install unwanted programs on your computer [1].
"Gift Card Checkers" are largely myths; Steam does not have a public API that allows for the mass verification of card codes, meaning any tool claiming to do so is likely a scam designed to fool users [1]. Steam GiftCards Checker.zip
These tools often ask users to log in with their Steam credentials directly into the "checker" app, stealing usernames and passwords, or directing them to fake websites [2]. Instead of checking card validity, these files often
It is highly recommended to to prevent security breaches, as it is a common indicator of a phishing or malware attempt [1, 2]. To make sure you're safe, Get tips on spotting phishing scams ? Find out what to do if you've already opened such a file? It is highly recommended to to prevent security
Here are the most significant "features" associated with such files: