Kaspersky uncovers 100 unique infostealer malware types targeting internet users

• Redline is most dominant data-stealing malware used in 51% infections
• Lumma infostealer has become another major concern for data security
• New infostealers grew from 4% to 28%.in last 3 years

Islamabad: As the malware development market continues to flourish with new stealers such as Lumma, for the last three years Redline still remains the dominant data-stealing malware used by cybercriminals. As per the latest finding of Kaspersky Digital Footprint Intelligence, 55% of devices targeted by password-stealer attacks in 2023 have been infected with the Redline malware.

According to information gleaned from log-files traded or distributed freely on the dark web, Redline was used in 51% of infostealer infections from 2020 to 2023. Other notable malware families included Vidar (17%) and Raccoon (nearly 12%). In total, around 100 distinct infostealer types were identified by Kaspersky Digital Footprint Intelligence between 2020 and 2023 using metadata from log-files.

Infostealers infiltrate devices to illicitly obtain sensitive credentials such as logins and passwords, which are then peddled on the shadow market, posing significant cybersecurity threats to personal and corporate systems.

The underground market for data-stealing malware development is expanding, evident from the rising popularity of new stealers. Between 2021 and 2023, the portion of infections caused by new stealers grew from 4% to 28%. Specifically, in 2023, the new “Lumma” stealer alone was responsible for more than 6% of all infections.

“Lumma emerged in 2022 and gained popularity in 2023, through a Malware-as-a-Service (MaaS) distribution model. This means any criminal, even those without advanced technical skills, can purchase a subscription for a pre-made malicious solution and use this stealer to carry out cyberattacks. Lumma is primarily designed for stealing credentials and other information from cryptocurrency wallets, commonly spread through email, YouTube, and Discord spam campaigns,” – says Hafeez Rahman, Technical group manager at Kaspersky.

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To guard against data-stealing malware, individuals are advised to use a comprehensive security solution for any device. Companies can help their users, employees and partners protect themselves from the threat by proactively monitoring leaks and prompting users to change leaked passwords immediately.

More information about infostealer threat landscape is gathered at Kaspersky Digital Footprint Intelligence website.