These programs are typically distributed via malicious links in discord, YouTube videos, or file-sharing sites to lure in users looking for free credit [2].
"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
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]. These programs are typically distributed via malicious links