How the 270497_PE Stealer Malware Led to 20 Stolen Login Credentials

HEROIC analysts found the 270497_PE_38.25.30.48_07-06-23 stealer log circulating on Telegram in June 2023. The file contains 20 records pulled directly from infected machines, including email addresses, plaintext passwords, and the URLs of websites those victims were actively using. The log was packaged and distributed by a threat actor who harvested credentials from real people using info-stealing malware.

Why the 270497_PE Stealer Log Is Dangerous

Every record in this file is a set of ready-to-use login credentials. The passwords are in plaintext, meaning attackers do not need to crack or decode anything. They can take an email and password combination directly from this file and try it on popular websites within seconds. The URLs in the log act as a roadmap, showing attackers exactly which services the victims were using so they can prioritize their targets.

What Was Exposed in the 270497_PE Stealer Log

• Email Addresses
• Plaintext Passwords
• URLs

Why This Matters

Stolen plaintext credentials fuel credential stuffing campaigns where automated tools test millions of login combinations per hour. If any victim in this log reused a password, attackers can chain their way into email accounts, online banking, social media, and workplace systems. Account takeover leads directly to identity theft and financial fraud, often before the victim realizes anything is wrong.

How Stealer Logs Like the 270497_PE File Work

Info-stealing malware infects computers through phishing emails, malicious downloads, or compromised software. Once active, it runs silently in the background and harvests saved credentials from browsers, password managers, and active sessions. The collected data is structured into a log file and transmitted to the attacker's infrastructure. That log is then traded or published on Telegram channels, often with hundreds or thousands of similar files from the same campaign. The 270497_PE file is one product of that pipeline, identified by HEROIC as part of a June 2023 Telegram upload wave.

Check If You Are Affected

HEROIC's free breach scanner searches more than 400 billion exposed records, including stealer logs like the 270497_PE file. Enter your email to see if your credentials were part of this leak. If they were, update your passwords right away and turn on two-factor authentication wherever it is available.