143 09SeptemberTGlogsgang2 uploaded by Logs

We've been tracking the increasing prevalence of stealer logs circulating on Telegram channels, but what caught our attention with this particular leak was the clarity and structure of the data. It wasn't just a random assortment of credentials; it was a well-organized collection of endpoints, email addresses, API hosts, and passwords, suggesting a targeted approach. The relatively small size of the leak, only 771 records, belies the potential impact, as the exposed data appears to be from a specific set of targets. This level of targeted data aggregation points to a concerning trend in how threat actors are collecting and leveraging stolen information.

The Stealer Log Targeting Endpoints and API Hosts

A Telegram user uploaded a stealer log file on September 28, 2021, exposing 771 records. This breach is significant not for its size, but for the type of data included: endpoints, email addresses, API hosts, and plaintext passwords. The file, named 143 09SeptemberTGlogsgang2, suggests a possible series of data dumps from the same source. The exposure of API hosts, in addition to email addresses and passwords, makes this leak particularly dangerous for enterprises that rely on these APIs for their services.

The breach was discovered when the file was uploaded to a Telegram channel known for hosting stealer logs. What caught our attention was the combination of exposed email addresses, plaintext passwords, and especially the API host information. The leak matters to enterprises because it could lead to unauthorized access to critical systems and data. This incident highlights the growing trend of attackers using stealer logs to gather targeted information for further exploitation, and the risk from even relatively small leaks.

Key point: Total records exposed: 771

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

Key point: Sensitive content types: Potentially PII depending on email content, API keys

Key point: Source structure: Stealer Log file

Key point: Leak location: Telegram channel

Key point: Date leaked: September 28, 2021

The use of Telegram channels for distributing stealer logs is a known issue in the cybersecurity community. A report by Flashpoint in 2023 highlighted the increasing use of Telegram for selling and sharing compromised data, including stealer logs. While specific details about the Telegram channel in this case are limited, the broader trend underscores the need for organizations to monitor these platforms for potential data leaks. The plaintext passwords are a major red flag, as most modern systems use hashing algorithms to protect passwords. The presence of plaintext passwords suggests either a very old or poorly secured system, or a credential stuffing attack against a vulnerable service.

Email · Addresses · Plaintext · Password · Urls