Lateral Movement via DCOM
Lateral Movement via Distributed Component Object Model
Last updated
Lateral Movement via Distributed Component Object Model
Last updated
The Microsoft Component Object Model (COM) is a platform-independent, distributed, object-oriented system for creating binary software components that can interact. COM is the foundation technology for Microsoft's OLE (compound documents), ActiveX (Internet-enabled components), as well as others.
https://docs.microsoft.com/en-us/windows/desktop/com/the-component-object-model
This lab explores a DCOM lateral movement technique using MMC20.Application COM as originally researched by @enigma0x3 in his blog post Lateral Movement using the mmc20.application Com Object
MMC20.Application COM class is stored in the registry as shown below:
Same can be achieved with powershell:
Establishing a connection to the victim host:
Executing command on the victim system via DCOM object:
Below shows the command execution and the result of it - remote machine's hostname command output is written to c:\fromdcom.txt:
Once the connection from an attacker to victim is established using the below powershell:
This is what happens on the victim system - svchost spawns mmc.exe which opens a listening port via RPC binding:
A network connection is logged from 10.0.0.7 (attacker) to 10.0.0.2 (victim) via offense\administrator (can be also seen from the above screenshot):
