How the ShoppingArenafiles Telegram Stealer Log Led to 35,503 Stolen Logins

HEROIC analysts identified a stealer log file uploaded by a Telegram user in July 2025, exposing 35,503 records harvested from compromised endpoints. The dataset contains email addresses, plaintext passwords, and URLs -- the raw material that enables immediate credential-based attacks against any service the victims use online.

Why This Is Dangerous

Stealer logs contain live session data pulled directly from infected devices. When an attacker obtains plaintext passwords paired with email addresses and the URLs where those credentials were used, they can log into accounts immediately -- no cracking required. The URLs reveal exactly which services each victim uses, making targeted account takeover trivial.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (site endpoints where credentials were used)

Why This Matters

Plaintext passwords are the most dangerous form of leaked credential. There is no hash to crack -- attackers simply paste credentials and gain access. With email-password-URL triples, threat actors can:

• Perform credential stuffing across hundreds of other services
• Execute account takeover on banking, email, and social accounts
• Sell validated credential sets on dark web marketplaces
• Facilitate identity theft by chaining access across platforms

How Stealer Logs Work

Stealer logs originate from infostealer malware -- malicious programs installed on a victim's device through phishing emails, fake software downloads, or malicious ads. Once active, the malware silently harvests saved passwords from browsers, session cookies, autofill data, and credentials stored in applications. This data is exfiltrated to attacker-controlled servers and later compiled into log files shared on platforms like Telegram. Unlike database breaches, stealer logs capture credentials at the moment of use -- meaning they are nearly always fresh and valid.

Check If You Are Affected

HEROIC's free breach scanner searches across 400 billion+ exposed records to tell you if your credentials appear in this or thousands of other breaches. If your email or password was part of this stealer log, you need to know now -- before an attacker acts on it.

Search the free HEROIC breach scanner today and find out if your data was exposed.