Vidar Stealer Batch 193 Can Unlock Your Accounts: 202303_vidar_193_BONUS Exposed

HEROIC analysts detected this stealer log circulating on Telegram in March 2023. Distributed under the name 202303_vidar_193_BONUS uploaded by a Telegram User, the file contained 5,185 records including email addresses, plaintext passwords, and the login URLs where those credentials were active. The naming convention — incorporating the Vidar malware family name, a batch number (193), and the label BONUS — indicates this was part of a structured distribution campaign, where attackers package stealer log output into numbered releases for sale or distribution on criminal channels.

Why This Is Dangerous

Vidar is a well-documented commercial information stealer sold on dark web forums as malware-as-a-service. When attackers have a Vidar-sourced log, they hold credentials that were silently extracted from real browsers on real devices. Paired with the actual login URLs, they can log directly into victim accounts without any guessing. Affected individuals face unauthorized access to the services listed in the log, financial account fraud, email account compromise that enables password resets across other services, and in serious cases, full identity takeover.

What Was Exposed

• Email addresses
• Plaintext passwords
• Login URLs (the exact services where each credential was harvested from the infected device)

Why This Matters

Vidar stealer logs represent one of the most operationally complete credential packages available in criminal markets. The malware captures not just stored passwords but active session data, meaning attackers can sometimes bypass login entirely. Credential stuffing attacks using this data can unlock accounts across dozens of services simultaneously. Financial fraud, social media hijacking, and corporate account compromise are all direct risks when Vidar-sourced credentials are circulating.

How Stealer Logs Work

Vidar is an information-stealing malware that cybercriminals rent or purchase on the dark web. It is typically delivered through malicious ads, cracked software downloads, or phishing links. Once installed on a victim's device, Vidar systematically extracts saved browser passwords, form autofill data, cookies, and cryptocurrency wallet files. This data is packaged into a structured log and sent to the attacker. Operators then sell or freely distribute these logs in bulk on Telegram channels and dark web forums, often labeled by batch number and country code. The victim's computer typically shows no symptoms.

Check If You Are Affected

HEROIC's free breach scanner searches the DarkHive database, which contains more than 400 billion records from breach events and stealer log campaigns worldwide. Enter your email address to find out whether your credentials appear in this Vidar batch or any other known release. If you are found in this data set, changing your passwords immediately and activating multi-factor authentication on all key accounts is the most effective immediate step you can take.