What is a stealer log
Infostealer malware copies what a browser and a few apps have saved, then ships that bundle out. The bundle is a stealer log.
What is in it
A typical log holds:
- Every password the browser saved, with the site it belongs to
- Session cookies
- Autofill entries and saved cards
- Cryptocurrency wallet files
- Tokens from Discord, Telegram, and similar apps
- The computer name, hardware, IP, and installed software
One infection hands over logins for email, banks, work tools, and everything else that browser remembered.
How it differs from a breach
A data breach is one company losing a database it stored. The leak is limited to that company. A stealer log comes from the victim's own machine, so it crosses every site they used on that box. That is why a hit is more urgent than seeing the same address in an old breach list.
How the logs move
Operators and resellers post the files on Telegram. Channels and bots drop zip archives, often daily. We collect those files and index each login. The Source column is the channel or bot name.
Which malware writes them
A handful of families produce most circulating logs. RedLine, Lumma, Vidar, Raccoon, StealC, and Atomic are the names that come up most. A dump usually does not record which family wrote it, so a result will not name the stealer.
What to do with a hit
Clean the infected device before you change passwords. New secrets typed on a machine that is still infected go to the same malware. The full order is on Found in a log.
Questions
- Is a stealer log the same as a data breach?
- No. A breach is one company losing its own database. A stealer log comes from a person's computer and holds logins for many sites.
- Why are cookies urgent?
- A stolen session cookie can sign a buyer in without the password and often without a two-factor prompt.
- How do I check an address?
- Search the email, username, company domain, login URL, password, or IP. A hit is one saved login from one machine.
Search an email, username, URL, password, or IP. Open search.
More
- About
What the index searches and who it is for.
- Found in a log
Clean the device first, then change passwords.
- Company domain
Find staff and customer addresses in the index.
- Sources and the 10,000 limit
Telegram bots, and why Elasticsearch stops at 10,000.
- Infostealer families
RedLine, Lumma, Vidar, Raccoon, StealC, Atomic.