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Threat Group Cards: A Threat Actor Encyclopedia

Permanent link Tool: Caterpillar

NamesCaterpillar
CategoryMalware
TypeReconnaissance, Backdoor, Info stealer, Downloader
Description(ClearSky) Acting as a focal point, the group usually attacks webservers via a custom WebShell, namely Caterpillar – a variant of the open source WebShell ‘ASPXSpy’. By using WebShell, the attackers leave their fingerprint on the web server and the internal network, move laterally, and deploy additional tools. On each compromised network the attacker installed one or more WebShell, supposedly to gain persistence and diversify the use of similar tools. The attackers use the WebShell to communicate with their C&C server for running commands and exfiltrating sensitive information. Connection to the WebShell is made using NordVPN or ExpressVPN services.
Information<https://www.clearskysec.com/wp-content/uploads/2021/01/Lebanese-Cedar-APT.pdf>

Last change to this tool card: 18 April 2021

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All groups using tool Caterpillar

ChangedNameCountryObserved

APT groups

 Volatile CedarLebanon2012-Early 2020 

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

Thailand Computer Emergency Response Team (ThaiCERT)
Electronic Transactions Development Agency

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