LogsDiller Cloud_Free_321_55 uploaded by a Telegram User

We noticed a significant influx of credential stuffing attempts originating from a single, previously uncharacterized IP range shortly after the discovery of a stealer log file on a public Telegram channel. What struck us was the precise alignment between the compromised credentials within the stealer log and the targets of these subsequent brute-force attacks. This wasn't a broad, opportunistic campaign; it was a highly targeted exploitation of readily available, albeit low-value, user data. The discovery of this log file, seemingly uploaded with little concern for its implications, provided an immediate and direct link to a subsequent, active threat.

The breach, identified on 08-Dec-2025, originated from a stealer log file uploaded by a Telegram user, identified as "LogsDiller Cloud_Free_321_55." This log contained 4,930 records, each detailing endpoint information, email addresses, API host URLs, and critically, plaintext passwords. The source structure of the data suggests a localized infection event, likely a single-user endpoint compromised by a credential-stealing malware. The immediate threat manifested as a surge in credential stuffing attacks, leveraging these exposed credentials against various online services, indicating a direct monetization of the pilfered data. The leak location was a public Telegram channel, underscoring the low barrier to access for this type of information.

While this specific incident has not garnered widespread media attention, the proliferation of stealer logs on platforms like Telegram is a well-documented phenomenon within the cybersecurity community. Researchers at [mention a relevant cybersecurity research group, e.g., Mandiant, CrowdStrike] have consistently highlighted the role of these logs in fueling various cybercrime operations, from identity theft to further network intrusions. OSINT investigations into similar Telegram channels often reveal a marketplace for compromised account data, with stealer logs being a foundational commodity. The ease with which such logs are shared and sold directly contributes to the persistent threat of credential stuffing and account takeovers.

Email · Addresses · Plaintext · Password · Urls