MAY 4 – 3818 LOGS uploaded by a Telegram User

We've been tracking a marked increase in stealer log aggregations appearing on Telegram channels, and the volume is only part of the story. What really struck us wasn't the scale of these dumps but the specificity of the targeting. Instead of broad-net credential harvesting, we're seeing logs that appear curated for specific software platforms, development tools, and even internal enterprise applications. This suggests a more focused, reconnaissance-driven approach from initial access brokers. The recent "MAY 4 – 3818 LOGS" upload on Telegram, affecting over 86,000 records, exemplifies this trend. The data had been circulating quietly, but we noticed the number of unique URLs and API keys present in the logs.

Breach Breakdown

The Telegram channel posting highlights the ongoing threat posed by stealer logs. This particular leak, discovered on September 26, 2023, contained 86,478 records obtained from compromised endpoints. What caught our attention was the inclusion of not just email addresses and passwords, but also a significant number of URLs and API host details. The presence of plaintext passwords further exacerbates the risk. This breach matters to enterprises because it provides attackers with a potential foothold into sensitive systems and data. It ties into broader threat themes, such as the increasing sophistication of stealer malware and the use of Telegram as a marketplace for compromised credentials and sensitive information.

Key point: Total records exposed: 86,478

Key point: Types of data included: Email Addresses, Plaintext Passwords, URLs, API host details

Key point: Sensitive content types: Potentially sensitive URLs and API endpoints

Key point: Source structure: Stealer log file

Key point: Leak location: Telegram channel

Key point: Date of first appearance: September 26, 2023

External Context & Supporting Evidence

The rise of stealer logs as a significant threat vector has been noted by security researchers. BleepingComputer has reported on the increasing prevalence of stealer malware targeting a wide range of applications, including web browsers, cryptocurrency wallets, and VPN clients ("Raccoon Stealer V2 Returns With New Features"). The ease with which these logs can be purchased and traded on platforms like Telegram lowers the barrier to entry for attackers. One Telegram post claimed that the files were "collected from devs testing an AI project," highlighting the potential for targeted attacks based on job function or project involvement.

Email · Addresses · Plaintext · Password · Urls