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Threat Group Cards: A Threat Actor Encyclopedia

Tool: Lambert

Names	Lambert Plexor
Category	Malware
Type	Info stealer
Description	From the start, Symantec suspected Longhorn was an outlier, saying it appeared to be different from other potential cybercrime groups. That assessment was based in part on Longhorn using a zero-day software exploit, which Symantec found embedded within a Microsoft Word document. The exploit delivered a data-stealing tool called Plexor. 'The malware had all the hallmarks of a sophisticated cyberespionage group,' Symantec writes. 'Aside from access to zero-day exploits, the group had preconfigured Plexor with elements that indicated prior knowledge of the target environment.'
Information	<https://www.bankinfosecurity.com/symantec-links-longhorn-group-to-cia-hacking-files-a-9824> <https://securelist.com/blog/research/77990/unraveling-the-lamberts-toolkit/>
Malpedia	<https://malpedia.caad.fkie.fraunhofer.de/details/win.lambert>

Last change to this tool card: 14 May 2020

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All groups using tool Lambert

Changed	Name	Country	Observed
APT groups
	↳ Subgroup: Longhorn, The Lamberts		2009
	Equation Group		2001-Aug 2016

2 groups listed (2 APT, 0 other, 0 unknown)

Digital Service Security Center
Electronic Transactions Development Agency

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