The ATM_LOgs 317pcs Stealer Log Contains More Stolen Credentials Than Most People Have Online Accounts

In October 2023, analysts found a stealer log file uploaded to a public Telegram channel by an anonymous user. The file went by the name ATM_LOgs 317pcs and contained 8,585 records pulled directly from malware-infected endpoints. Each record paired an email address with a plaintext password and the URL of the service that credential belonged to. The name ATM_LOgs suggests the log was assembled from machines targeted in environments where financial or transactional software was in use, raising additional concerns about the sensitivity of the data involved.

Why This Is Dangerous

Every record in the ATM_LOgs 317pcs file is a ready-to-use credential. There is no decryption step, no cracking required. An attacker downloads the file and immediately has a working list of email addresses and the passwords that go with them. With the service URLs included, they also know exactly where to try those logins. For anyone whose work credentials appeared in this log, the risk extends beyond personal accounts. A single compromised corporate login can give an attacker a foothold inside an organization, leading to lateral movement, data theft, or ransomware deployment. The ATM framing of this log makes it particuarly concerning for anyone who may have had banking or payment-related credentials captured.

What Was Exposed in the ATM_LOgs 317pcs Stealer Log

• Email addresses
• Plaintext passwords
• URLs of compromised services and endpoints

Why This Matters

8,585 records sounds like a small number compared to major breaches involving millions of users. But stealer logs operate differently from traditional data breaches. These are not random records from a hacked database. Each one represents a real person whose device was infected and actively monitored. The credentials were collected in the moment of use, making them far more likely to still be valid. Credential stuffing tools can cycle through all 8,585 pairs in minutes, testing them against banking sites, email providers, and corporate VPNs. Even a one percent success rate means dozens of accounts are taken over, each one potentially opening the door to identity theft, financial fraud, or further intrusion. The speed at which stealer logs circulate on Telegram means this data can move through several layers of threat actors before a victim ever learns their account was compromised.

How Stealer Logs Work

Infostealer malware gets onto a victim's device through a phishing link, a trojanized software download, or a malicious browser extension. Once running, it operates quietly in the background, capturing saved browser passwords, monitoring form submissions, harvesting session cookies, and logging the URLs of every site the user visits. The malware transmits all of this to a remote server where the attacker aggregates records from dozens or hundreds of infected machines into a single compressed log file. That file is then sold on dark web markets or simply uploaded to public Telegram channels for free, where it can be downloaded by anyone looking for easy credentials. The victim typicaly has no indication anything happened until they start seeing unauthorized logins on their accounts.

Check If You Are Affected

HEROIC's free dark web scanner indexes over 400 billion compromised records, including stealer logs like ATM_LOgs 317pcs. If your email address appeared in this file or any other breach in HEROIC's database, you will see the results instantly. Visit HEROIC.com and run a free scan to find out whether your credentials are already circulating among cybercriminals and what steps you should take to protect yourself.