MAY 4 – 3885 LOGS uploaded by a Telegram User

We've been tracking a steady climb in stealer log dumps appearing on Telegram channels, but this one caught our attention not for its size, but for the seemingly random assortment of data types included. It wasn't a targeted attack on a specific platform or service; instead, it appears to be the result of a broad-spectrum credential harvesting operation. The data had been circulating quietly, but we noticed the logs contained a mix of credentials, API keys, and internal URLs, suggesting a potential compromise of development or staging environments. This scattershot approach highlights the increasing automation and opportunism in the stealer log landscape.

MAY 4 – 3885 LOGS: A Stealer Log Cocktail Exposing 89k+ Records

In late September 2023, a Telegram user uploaded a file named "MAY 4 – 3885 LOGS" containing stealer logs, ultimately exposing 89,770 records. What really struck us wasn't the volume, but the diverse range of exposed data. This included email addresses, plaintext passwords, and internal URLs, a cocktail of information often associated with broader credential harvesting efforts rather than a specific, targeted breach. The breach was discovered on September 26, 2023, after the file was uploaded to a public Telegram channel.

The data's mixed nature—credentials alongside internal URLs and API hosts—suggests potential access to development or staging environments. This is concerning because compromised development environments can be leveraged for supply chain attacks, injecting malicious code into software updates or libraries. Furthermore, the presence of plaintext passwords, while regrettably common in stealer logs, significantly amplifies the risk of account takeover attacks across various platforms.

This incident matters to enterprises now because it underscores the persistent threat posed by stealer logs and the increasing sophistication of automated credential harvesting. The attack highlights the need for organizations to proactively monitor for leaked credentials, enforce strong password policies (even though plaintext storage is the original sin), and secure their development environments. The spread of these logs on Telegram channels exemplifies how easily compromised data can be disseminated and exploited, emphasizing the need for continuous monitoring and proactive threat intelligence.

Key point: Total records exposed: 89,770

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

Key point: Sensitive content types: Potentially sensitive internal URLs and API keys

Key point: Source structure: Stealer log file

Key point: Leak location: Telegram channel

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

Stealer logs are a growing problem. As reported by BleepingComputer in numerous articles, these logs are often traded and sold on dark web marketplaces and Telegram channels, providing attackers with a readily available source of compromised credentials and other sensitive information. This particular leak aligns with that trend, illustrating how easily compromised data can be disseminated and exploited.

Email · Addresses · Plaintext · Password · Urls