Remote File Copy

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Remote File Copy
Technique
ID T0867
Tactic Lateral Movement
Data Sources File monitoring, Packet capture, Process use of network, Process monitoring, Netflow/Enclave netflow, Network protocol analysis
Asset Human-Machine Interface, Control Server, Data Historian

Description

Adversaries may copy files from one system to another to stage adversary tools or other files over the course of an operation.1 Copying of files may also be performed laterally between internal victim systems to support Lateral Movement with remote Execution using inherent file sharing protocols such as file sharing over SMB to connected network shares.1

In control systems environments, malware may use SMB and other file sharing protocols to move laterally through industrial networks.


Procedure Examples

  • Bad Rabbit can move laterally through industrial networks by means of the SMB service.2
  • NotPetya can move laterally through industrial networks by means of the SMB service.2
  • WannaCry can move laterally through industrial networks by means of the SMB service.2

Mitigations

  • Network Intrusion Prevention - Network intrusion detection and prevention systems that use network signatures to identify traffic for specific adversary malware or unusual data transfer over known tools and protocols like FTP can be used to mitigate activity at the network level. Signatures are often for unique indicators within protocols and may be based on the specific obfuscation technique used by a particular adversary or tool and will likely be different across various malware families and versions. Adversaries will likely change tool C2 signatures over time or construct protocols in such a way as to avoid detection by common defensive tools.3