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Threat Group Cards: A Threat Actor Encyclopedia

Tool: N1stAgent

Names	N1stAgent
Category	Malware
Type	Backdoor
Description	(Palo Alto) N1stAgent requires specific arguments to execute successfully. Some samples check only for one argument and others check for three different arguments where each one is either executing the malware, sets a startup key and runs the malware or installs the malware as a service. Service installation was not working in our found samples because the author seems to be forgotten to install the service with arguments.
Information	<https://unit42.paloaltonetworks.com/unit42-freemilk-highly-targeted-spear-phishing-campaign/>

Last change to this tool card: 20 April 2020

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All groups using tool N1stAgent

Changed	Name	Country	Observed
APT groups
	Reaper, APT 37, Ricochet Chollima, ScarCruft		2012-Dec 2023

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

Digital Service Security Center
Electronic Transactions Development Agency

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