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Threat Group Cards: A Threat Actor Encyclopedia

Tool: Lazarus

Names	Lazarus HIDDEN COBRA RAT/Worm
Category	Malware
Type	Backdoor, Worm, Downloader, Info stealer, Exfiltration
Description	(US-CERT) This submission includes four unique files. The first is an installer for additional malware: a Remote Access Trojan (RAT) and a malicious Dynamic Link Library (DLL) that functions as a Server Message Block (SMB) Worm. The fourth file is another SMB worm in the form of a Windows 32-bit executable. Both SMB worms attempt to spread locally and to random IP addresses on the public Internet by attempting to brute force vulnerable systems using a built-in list of common passwords. The RAT included with the SMB worm provides the attacker with the ability to deliver additional malware, run local commands, and exfiltrate data.
Information	<https://www.us-cert.gov/ncas/analysis-reports/AR18-149A>

Last change to this tool card: 20 April 2020

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All groups using tool Lazarus

Changed	Name	Country	Observed
APT groups
	Lazarus Group, Hidden Cobra, Labyrinth Chollima		2007-Sep 2024

1 group listed (1 APT, 0 other, 0 unknown)

Digital Service Security Center
Electronic Transactions Development Agency

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