2,575 Passwords From the RedLine 333 Bonus Dump Surfaced on Telegram

In April 2023, HEROIC analysts identified a RedLine stealer log circulating in a private Telegram channel under the filename "20230421_redline_333_bonus." The dump exposed 2,575 records from users in the United States, each containing an email address, a plaintext password, and the URL of the site where that password was saved. The "bonus" label in the file name is a common tactic used by threat actors to attract buyers and traders in underground markets, indicating this data was being actively distributed at the time of discovery.

Why This Is Dangerous

RedLine is one of the most widely deployed infostealer malware families in circulation, sold as a commercial product on dark web forums so that any attacker with a modest budget can deploy it without technical expertise. Every password in this file is in plaintext, meaning there is no encryption barrier between an attacker and the victim's accounts. Combined with the specific URLs also captured by RedLine, attackers know exactly which sites to target for each stolen credential set, making the data immedietly actionable the moment it is recieved. This is not a hypothetical risk. Credential stuffing tools can begin testing these 2,575 logins across banking, email, and corporate platforms within minutes of downloading the file.

What Was Exposed

• Email addresses used as login identifiers across dozens of online platforms
• Plaintext passwords captured live from infected browsers with no encryption
• URLs identifying the specific websites tied to each stolen credential

Why This Matters

Credential data from RedLine logs does not expire the moment it is uploaded to Telegram. These files are downloaded, resold, and redistributed across underground channels for months or years after the initial leak. Victims whose credentials appeared in this April 2023 dump may still be at risk today if they have not changed the affected passwords. The typical attack chain begins with credential stuffing, where automated tools test stolen logins against high-value targets like email providers, banking portals, and corporate VPNs. Successful logins lead to account takeover, and from there the risks compound: financial fraud, identity theft, and unauthorized access to workplace systems. Seperate accounts sharing the same password face identical risk even if they were not directly captured in this log.

How Stealer Logs Work

RedLine Stealer is a commercially available malware kit sold on dark web forums since at least 2020. Attackers purchase a license and deploy it through phishing emails, malicious software downloads, fake browser updates, or cracked applications. Once a device is infected, RedLine immediately begins scanning the system for browser-stored passwords, autofill data, cookies, credit card details saved in browsers, and cryptocurrency wallet files. All harvested data is packaged into a structured log and transmited to the attacker's command-and-control server or Telegram channel. The entire process can occure silently in under a minute with no visible symptoms for the victim. The "333_bonus" designation in this file name suggests it was part of a bulk batch delivery, a common distribution format among RedLine operators selling logs in volume.

Check If You Are Affected

HEROIC's threat intelligence team monitors private Telegram channels, dark web forums, and underground marketplaces where stealer logs like this one are bought and sold. HEROIC has indexed over 400 billion breach records, including thousands of RedLine dumps, in a free breach scanner anyone can access. If your email address appeared in the RedLine 333 Bonus Telegram upload or any other RedLine log in HEROIC's database, a free search will surface it. Enter your email now to see exactly which breaches have exposed your data, and take action before attackers do.