Description
[Orz](https://attack.mitre.org/software/S0229) is a custom JavaScript backdoor used by [Leviathan](https://attack.mitre.org/groups/G0065). It was observed being used in 2014 as well as in August 2017 when it was dropped by Microsoft Publisher files. (Citation: Proofpoint Leviathan Oct 2017) (Citation: FireEye Periscope March 2018)
External References
Techniques Used by This Malware
- T1016 — System Network Configuration Discovery
- T1027 — Obfuscated Files or Information
- T1055.012 — Process Hollowing
- T1057 — Process Discovery
- T1059.003 — Windows Command Shell
- T1070 — Indicator Removal
- T1082 — System Information Discovery
- T1083 — File and Directory Discovery
- T1102.002 — Bidirectional Communication
- T1105 — Ingress Tool Transfer
- T1112 — Modify Registry
- T1218.010 — Regsvr32
- T1518 — Software Discovery