We've been tracking a steady increase in stealer logs appearing on Telegram channels, but what caught our attention with this particular dump was the apparent targeting of specific business tools. The sheer volume of credentials compromised in typical stealer logs is often overwhelming, but this leak presented a more focused set of data, suggesting a potentially targeted campaign or a user with access to multiple sensitive systems. The data had been circulating for several days before we flagged it, underscoring the need for continuous monitoring of these channels.

Boss Bez: Stealer Log Exposes Credentials for 6,095 Endpoints

A stealer log, uploaded to Telegram on November 3, 2023 by an anonymous user, exposed 6,095 records associated with a service named Boss Bez. Stealer logs are typically collections of data harvested from compromised machines via malware, often targeting browser cookies, saved credentials, and cryptocurrency wallets. The appearance of these logs on Telegram channels has become a common vector for the dissemination of stolen data. The data had been circulating for several days before our team discovered it, hidden among the noise of routine breaches.

This breach caught our attention due to the specificity of the exposed data. Instead of a broad range of credentials, the log focused primarily on Boss Bez, a platform that provides software solutions for businesses. The compromised data included email addresses, plaintext passwords, and associated URLs. The use of plaintext passwords is an egregious security lapse, indicating a failure to properly hash and salt credentials, making them easily exploitable.

This incident matters to enterprises because it highlights the ongoing risk posed by stealer logs and the potential for targeted attacks. Even if an organization doesn't directly use Boss Bez, compromised credentials from related services can be used to pivot into other systems. The plaintext passwords dramatically increase the risk of credential stuffing attacks against other platforms where users may have reused the same credentials. This incident is a stark reminder of the importance of employee security awareness training and the need for robust password management practices.

Key point: Total records exposed: 6,095

Key point: Types of data included: Email Addresses, Plaintext Password, URLs

Key point: Sensitive content types: Credentials

Key point: Source structure: Stealer log

Key point: Leak location(s): Telegram

Key point: Date of first appearance: November 3, 2023

The appearance of stealer logs on Telegram is well-documented. Security researchers often monitor these channels for emerging threats and data breaches. Several threat actors are known to utilize Telegram for distributing stolen data. BleepingComputer has regularly reported on the rise of stealer logs and their impact on businesses, often highlighting the ease with which threat actors can obtain and exploit this data. The fact that passwords were stored in plaintext further amplifies the severity of this breach, making it easier for attackers to compromise accounts and potentially gain access to sensitive systems.

Email · Addresses · Plaintext · Password · Urls

We've been tracking a marked increase in stealer log deployments via Telegram over the past quarter, but this particular leak caught our eye not just for its contents but for its unusual clarity and immediate accessibility. What really struck us wasn't the volume of compromised accounts, but the focused nature of the target. The data had been circulating quietly in a relatively small Telegram group before being more widely shared, but we noticed the potential implications for enterprise security due to the specific type of data exposed. The setup here felt different because it wasn't just a random collection of credentials; it appeared to be a targeted grab of sensitive information related to specific systems.

Boss Bez Leak: 4.5k Records Expose Passwords and API Keys

A stealer log, uploaded by a Telegram user in November 2023, exposed 4,527 records from the site Boss bez. The breach, discovered by our team while monitoring Telegram channels known for hosting leaked data, immediately stood out due to the presence of plaintext passwords alongside what appeared to be API host URLs. This combination presents a significant risk, as attackers could directly access and manipulate affected systems.

The exposed data included email addresses, plaintext passwords, and URLs. The plaintext passwords are of particular concern, as they eliminate the need for attackers to crack hashed credentials, enabling immediate account takeover. The presence of API host URLs suggests that the compromised accounts may have had elevated privileges or access to sensitive resources. The leak was found on a Telegram channel known for distributing stealer logs, making it readily accessible to a wide range of malicious actors. This matters to enterprises now because it represents a real-world example of how easily credentials can be harvested and disseminated, and how damaging the results can be.

Key point: Total records exposed: 4,527

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

Key point: Sensitive content types: API host URLs

Key point: Source structure: Stealer log

Key point: Leak location: Telegram channel

Key point: Date of first appearance: 03-Nov-2023

External Context & Supporting Evidence

The rise of Telegram as a distribution platform for stealer logs has been noted by security researchers. A recent report by BleepingComputer highlighted the increasing use of Telegram channels to share stolen credentials and other sensitive information. This trend underscores the need for organizations to actively monitor these channels for potential leaks of their data. The ease with which these logs can be shared and accessed makes them a valuable resource for attackers looking to gain unauthorized access to systems and data. The risk is further compounded when data is stored in plaintext form, as it eliminates the need for attackers to crack passwords, allowing for immediate exploitation.

Email · Addresses · Plaintext · Password · Urls

We've been tracking a noticeable uptick in stealer logs appearing on Telegram channels, and while many are rehashes of older dumps, this one caught our eye due to the relatively small size and specific target. It wasn't the volume of data that was striking, but the focused nature of the compromised credentials and the potential access they unlocked. The data had been circulating quietly, but we noticed the potential for immediate enterprise impact.

Boss Bez: A Small Stealer Log with Big Potential

A stealer log, uploaded to Telegram on November 3, 2023, exposed 2245 records from a target identified as Boss Bez. While the number of records is relatively low compared to mega-breaches we often see, the content within the log suggests a focused attack aimed at gaining access to specific systems. The relatively small size suggests a targeted attack rather than a broad net cast by a typical infostealer campaign.

The breach was discovered on November 3, 2023, when a user uploaded the log file to a Telegram channel frequented by threat actors. What caught our attention was the presence of not just email addresses and plaintext passwords, but also URLs and API host information. The combination of these data points suggests the potential for attackers to bypass traditional password-based authentication and directly access sensitive systems or data. This is particularly concerning because it points to potential lateral movement within a compromised network.

This breach matters to enterprises now because it exemplifies the ongoing threat posed by infostealer malware. While large breaches grab headlines, these smaller, more targeted attacks can often slip under the radar, allowing attackers to maintain a foothold within a network for extended periods. Furthermore, the presence of plaintext passwords remains a persistent problem, highlighting the need for stronger authentication mechanisms and regular password audits.

Key point: Total records exposed: 2245

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

Key point: Sensitive content types: Potentially sensitive URLs and API host information

Key point: Source structure: Stealer log

Key point: Leak location: Telegram channel

Key point: Date of first appearance: November 3, 2023

Infostealer malware continues to be a significant threat vector, as noted in recent reports from cybersecurity firms. These reports detail the increasing sophistication of these tools and their ability to evade detection. The use of Telegram channels for distributing stolen data is also a common trend, providing a relatively anonymous platform for threat actors to share and monetize their ill-gotten gains. The relative ease with which these logs are created and distributed underscores the need for constant vigilance and proactive threat hunting.

Email · Addresses · Plaintext · Password · Urls