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MalwareUsed by 1 actor

Heyoka

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THREAT ACTORS

Groups observed using it

1 distinct threat actor attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.

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Aoqin Dragon

Aoqin Dragon obtained the Heyoka open source exfiltration tool and subsequently modified it for their operations.

via mitre attack websiteattack.mitre.org
MITRE ATT&CK

Techniques & procedures

5 distinct techniques documented for this family, organized by ATT&CK tactic.

T1588.002ToolEvidence2

The content repeatedly states that threat actors 'obtained,' 'acquired,' or 'used' publicly available, open-source, legitimate, or modified tools such as Mimikatz, Cobalt Strike, PsExec, Empire, Impacket, and many others.

T1071.004DNSEvidence1

Heyoka is an open source exfiltration tool that uses spoofed DNS requests to create a two-way communication tunnel.

Exfiltration

3 techniques
T1041Exfiltration Over C2 ChannelEvidence1

Aoqin Dragon “obtained the Heyoka open source exfiltration tool and subsequently modified it for their operations.”

T1048Exfiltration Over Alternative ProtocolEvidence1

Heyoka is an open source exfiltration tool that uses spoofed DNS requests to create a two-way communication tunnel. Hackers employ Heyoka by copying files from compromised devices

T1567Exfiltration Over Web ServiceEvidence1

Aoqin Dragon modified the Heyoka open source exfiltration tool; Cinnamon Tempest used a keylogger that uploads data to Alibaba cloud storage; Salesforce Data Exfiltration relied on the legitimate Salesforce Data Loader app for data exfiltration.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets match these IOCs, which detections are missing, which campaigns to expect next, and what to do in the next 30 minutes.
IOC matching

Match every observed IP, domain, and hash against your live telemetry.

Threat actor attribution1

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities

CVEs this family uses for access and lateral movement.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

MITRE ATT&CK mapping5

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.