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Threat Group Cards: A Threat Actor Encyclopedia

Permanent link Tool: SierraAlfa

NamesSierraAlfa
CategoryMalware
TypeWorm, Loader
Description(Novetta) A self-install service-based executable, SierraAlfa begins a chain of infection that ultimately leads to the potential devastation of an entire network of computers. SierraAlfa is responsible for the distribution and activation of WhiskeyAlfa on a victim’s network. The observed samples of SierraAlfa were clearly built specifically for the SPE attacks as they contain infrastructure and account information specific to SPE’s networks.

Two variants have been observed: SierraAlfa-One and SierraAlfa-Two. SierraAlfa-One is the base model, while SierraAlfa-Two provides additional features to ensure the propagation of the malicious payload within.
Information<https://www.operationblockbuster.com/wp-content/uploads/2016/02/Operation-Blockbuster-RAT-and-Staging-Report.pdf>

Last change to this tool card: 19 April 2020

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All groups using tool SierraAlfa

ChangedNameCountryObserved

APT groups

 Lazarus Group, Hidden Cobra, Labyrinth ChollimaNorth Korea2007-Spring 2021X

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

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

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