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Google Warns of Internet Explorer Zero-Day Vulnerability

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An Internet Explorer zero-day vulnerability was actively exploited by a North Korean threat actor to target South Korean users by capitalizing on the recent Itaewon Halloween crowd crush to trick users into downloading malware.

The discovery, reported by Google Threat Analysis Group researchers Benoît Sevens and Clément Lecigne, is the latest set of attacks perpetrated by ScarCruft, which is also called APT37, InkySquid, Reaper, and Ricochet Chollima.

“The group has historically focused their targeting on South Korean users, North Korean defectors, policy makers, journalists, and human rights activists,” TAG said in a Thursday analysis.

The new findings illustrate the threat actor’s continued abuse of Internet Explorer flaws such as CVE-2020-1380 and CVE-2021-26411 to drop backdoors like BLUELIGHT and Dolphin, the latter of which was disclosed by Slovak cybersecurity firm ESET late last month.

Another key tool in its arsenal is RokRat, a Windows-based remote access trojan that comes with a wide range of functions that allow it to capture screenshots, log keystrokes, and even harvest Bluetooth device information.

The new findings illustrate the threat actor’s continued abuse of Internet Explorer flaws such as CVE-2020-1380 and CVE-2021-26411 to drop backdoors like BLUELIGHT and Dolphin, the latter of which was disclosed by Slovak cybersecurity firm ESET late last month.

Another key tool in its arsenal is RokRat, a Windows-based remote access trojan that comes with a wide range of functions that allow it to capture screenshots, log keystrokes, and even harvest Bluetooth device information.

 

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Tags: AlertsAlerts 2022APT37BackdoorBLUELIGHTDecember 2022DolphinGoogleInkySquidInternet ExplorerItaewon Halloween crowd crushMalware CampaignNorth KoreaReaperRicochet ChollimaRokRatScarCruftSouth Koreazero-day vulnerability
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