Researchers have discovered yet another massive trove of sensitive data, a dizzying 1.2 TB database containing login credentials, browser cookies, autofill data, and payment information extracted by malware that has yet to be identified.
In all, researchers from NordLocker said on Wednesday, the database contained 26 million login credentials, 1.1 million unique email addresses, more than 2 billion browser cookies, and 6.6 million files. In some cases, victims stored passwords in text files created with the Notepad application.
The stash also included over 1 million images and more than 650,000 Word and PDF files. Additionally, the malware made a screenshot after it infected the computer and took a picture using the device’s webcam. Stolen data also came from apps for messaging, email, gaming, and file-sharing. The data was extracted between 2018 and 2020 from more than 3 million PCs.
The discovery comes amid an epidemic of security breaches involving ransomware and other types of malware hitting large companies. In some cases, including the May ransomware attack on Colonial Pipeline, hackers first gained access using compromised accounts. Many such credentials are available for sale online.
Alon Gal, cofounder and CTO of security firm Hudson Rock, said that such data is often first collected by stealer malware installed by an attacker attempting to steal cryptocurrency or commit a similar type of crime.
The attacker “will likely then try to steal cryptocurrencies, and once he is done with the information, he will sell to groups whose expertise is ransomware, data breaches, and corporate espionage,” Gal told me. “These stealers are capturing browser passwords, cookies, files, and much more and sending it to the [command and control server] of the attacker.”
NordLocker researchers said there’s no shortage of sources for attackers to secure such information.
“The truth is, anyone can get their hands on custom malware,” the researchers wrote. “It’s cheap, customizable, and can be…