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Threat Group Cards: A Threat Actor Encyclopedia

Permanent link Tool: Elirks

NamesElirks
CategoryMalware
TypeBackdoor, Info stealer
Description(Palo Alto) Elirks, less widely known than PlugX, is a basic backdoor Trojan, first discovered in 2010, that is primarily used to steal information from compromised systems. We mostly observe attacks using Elirks occurring in East Asia. One of the unique features of the malware is that it retrieves its C2 address by accessing a pre-determined microblog service or SNS. Attackers create accounts on those services and post encoded IP addresses or the domain names of real C2 servers in advance of distributing the backdoor. We have seen multiple Elirks variants using Japanese blog services for the last couple of years.
Information<https://unit42.paloaltonetworks.com/unit42-tracking-elirks-variants-in-japan-similarities-to-previous-attacks/>
<https://researchcenter.paloaltonetworks.com/2016/09/mile-tea-cyber-espionage-campaign-targets-asia-pacific-businesses-and-government-agencies/>
Malpedia<https://malpedia.caad.fkie.fraunhofer.de/details/win.elirks>
AlienVault OTX<https://otx.alienvault.com/browse/pulses?q=tag:elirks>

Last change to this tool card: 13 May 2020

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All groups using tool Elirks

ChangedNameCountryObserved

APT groups

 BlackgearChina2018-Jul 2018 
XBronze Butler, Tick, RedBaldNight, Stalker PandaChina2010-Jun 2019 
 Scarlet MimicChina2015 

3 groups listed (3 APT, 0 other, 0 unknown)

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

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