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Multi-Objective Botnet and Infostealer ‘Aurora’ Rising to Fame

By Ionut Arghire on November 23, 2022

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Aurora, a multi-purpose botnet being marketed on underground boards since April, has been adopted by a number of cybercriminals over the previous few months, cybersecurity agency Sekoia.io reviews.

Packing info stealing, distant entry, and downloader capabilities, the malware is written in Golang and initially emerged on Russian-speaking underground boards, being supplied as a malware-as-a-service (MaaS) by a risk actor calling themselves ‘Cheshire’.

In July, Sekoia.io recognized tens of Aurora samples and a number of command-and-control (C&C) servers related to the botnets, however the growth of the malware appeared to have stopped briefly. In August, the risk began being marketed as an info stealer as an alternative of a botnet.

“Based mostly on the Darkish Internet cybercrime boards, Sekoia.io recognized 7 traffers groups that introduced they added Aurora of their infostealer arsenal. Most of them created their workforce after the commercial of Aurora as a stealer, and are nonetheless very lively,” the cybersecurity agency notes.

One of many groups that has added Aurora to its arsenal charges it on par with Racoon, a extremely common infostealer that was suspended in March, when its operators introduced that that they had misplaced the developer throughout Russia’s invasion of Ukraine.

“The adoption of Aurora stealer by a number of traffers groups means that the malware gained in reputation amongst risk actors,” Sekoia.io notes.

In October and November, the cybersecurity agency recognized tons of of samples and dozens of lively C&C servers, confirming that Aurora had grow to be a prevalent infostealer.

Sekoia.io additionally recognized a number of an infection chains resulting in Aurora, together with phishing assaults posing as legit obtain pages for cryptocurrency wallets and distant entry instruments, cracked software program obtain web sites, and extra.

Given the multitude of methods, the cybersecurity agency believes that a number of risk actors are distributing the stealer.

On the contaminated machines, Aurora can steal knowledge from browsers, extensions (together with cryptocurrency wallets), and functions similar to Telegram, and may load and execute extra payloads. It’s also marketed with file grabbing capabilities, however Sekoia.io has not noticed these in motion.

“Aurora is one other infostealer concentrating on knowledge from browsers, cryptocurrency wallets, native programs, and appearing as a loader. As a number of risk actors, together with traffers groups, added the malware to their arsenal, Aurora Stealer is changing into a distinguished risk. [T]hreat actors extensively distribute it utilizing a number of an infection chains together with phishing web sites masquerading legit ones, YouTube movies and faux “free software program catalogue” web sites,” Sekoia.io concludes.

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