Intrusion setG0043

Group5

Group5 is a threat group with a suspected Iranian nexus, though this attribution is not definite. The group has targeted individuals connected to the Syrian opposition via spearphishing and watering holes, normally using Syrian and Iranian themes. Group5 has used two commonly available remote access tools (RATs), njRAT and NanoCore, as well as an Android RAT, DroidJack.

Documented techniques
4
Assessed origin
Iran
Basis
MITRE ATT&CK

How they break in

Techniques MITRE has documented this group using, grouped by the stage of an attack they belong to. This is the actionable half: each one is a behaviour you can look for in your own logs, and a control you can test.

Malware

Families MITRE records this group deploying. Detection names for these are a reasonable place to start.

NanoCorenjRAT
Source: MITRE ATT&CK View the original record · Last synchronised 2026-09-09 · Origin and motivation are read from MITRE’s own description and are not structured fields in ATT&CK. Where the text does not attribute a group, this page leaves them blank rather than guessing.