Malware: DnsSystem

Description

[DnsSystem](https://attack.mitre.org/software/S1021) is a .NET based DNS backdoor, which is a customized version of the open source tool DIG.net, that has been used by [HEXANE](https://attack.mitre.org/groups/G1001) since at least June 2022.(Citation: Zscaler Lyceum DnsSystem June 2022)

External References

• mitre-attack
• Zscaler Lyceum DnsSystem June 2022

Techniques Used by This Malware

• T1005 — Data from Local System
• T1033 — System Owner/User Discovery
• T1041 — Exfiltration Over C2 Channel
• T1059.003 — Windows Command Shell
• T1071.004 — DNS
• T1105 — Ingress Tool Transfer
• T1132.001 — Standard Encoding
• T1204.002 — Malicious File
• T1547.001 — Registry Run Keys / Startup Folder

APT Groups Using This Malware

• HEXANE