What are infostealer logs, and what to do if you appear in one
An infostealer log is the data a piece of malware copied from an infected computer: saved browser passwords, session cookies, autofill entries and system details. If your accounts appear in one, clean the infected device first, then change passwords from a clean device and sign out every session, because stolen cookies can bypass two-factor authentication.
How a device gets infected
- Cracked software, game cheats and fake installers are the most common source.
- Malicious ads and look-alike download pages for popular apps.
- Attachments and links in phishing messages, including on Discord and Telegram.
The malware runs once, collects everything the browser saved and uploads it within minutes. The logs are then traded or published, often months before the victim notices.
Clean-up, in this order
- Disconnect the infected device and back up only your documents, not programs.
- Reinstall the operating system, or at least run a full scan with an up-to-date security tool. Changing passwords on an infected device just hands over the new ones.
- From a clean device, change the passwords of your email account first, then banking, then everything else.
- Use "sign out of all sessions" on every important account: stolen session cookies keep working until they are revoked.
- Turn on two-factor authentication and review recovery emails, phone numbers and connected apps.
- Move crypto funds from any wallet that was on the device to a new wallet created on a clean device.
Checking whether your accounts are exposed
Stealer-log indexes can be searched by the email address, username or domain you use. Only search for identifiers you own or are authorized to investigate; DuckINT's acceptable use policy forbids anything else.
Questions
- I have two-factor authentication. Am I safe?
- Not entirely. A stolen session cookie lets an attacker reuse an already-signed-in session without the second factor. Signing out of all sessions invalidates those cookies.
- Will an antivirus remove the stealer?
- Most stealers exit after uploading the data, so there may be nothing left to remove. The damage is the data already taken, which is why the password and session clean-up matters most.