#100DaysofYARA 2024 – Day 64 – Atera Agent

Rounding out this little series on Remote Management and Monitoring tools is Atera Agent. Just like ScreenConnect and AnyDesk, Atera Agent has also been abused by malicious actors.

Today’s rule matches strings found in the Atera Agent MSI installer package:

rule PUP_RMM_AteraAgent_msi {
	meta:
		description = "Matches strings found in Atera Agent remote management tool installer, often abused for unauthorised access."
		last_modified = "2024-03-04"
		author = "@petermstewart"
		DaysofYara = "64/100"
		sha256 = "91d9c73b804aae60057aa93f4296d39ec32a01fe8201f9b73f979d9f9e4aea8b"

	strings:
		$magic = { d0 cf 11 e0 a1 b1 1a e1 }
		$clsid = { 84 10 0c 00 00 00 00 00 c0 00 00 00 00 00 00 46 }
		$a1 = "AteraAgent"
		$a2 = "This installer database contains the logic and data required to install AteraAgent."

	condition:
		$magic at 0 and
		all of them
}

Find the rest of my 100DaysofYARA posts here, and the rules themselves on my Github repository.

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